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Background: Medical education related to bone fracture must address numerous challenges including complex anatomical characteristics, diverse injury mechanisms, fracture typing, and treatment modalities. Our newly developed 3D printed model comprises components that may be combined or split to simulate various anatomical features, fracture types, and treatment modalities. This study aims to analyze the teaching utility of the new 3D-printed model compared with the traditional solid model. Methods: This prospective study included 112 students randomly assigned to fracture-related education with a conventional model or the newly developed 3D-printed model. All students received 40 min of lecture, 20 min for femoral neck and 20 min for tibiofibular fractures, and a post-class quiz (10 min each) immediately followed. Scores on tests of fracture-related knowledge and user satisfaction were measured pre and post education for comparison. Results: The 3D printing group had an advantage in retention of anatomic knowledge, fracture typing and choice of treatment for the femoral neck fracture (P < 0.05). For the tibiofibular fracture the 3D printing group had an advantage in retention of anatomic knowledge and fracture complications (P < 0.05).Scores on the questionnaire survey also showed increased satisfaction in the 3D-printed model group(P < 0.05). Conclusions: The proposed 3D-printed model can enhance the teaching effect significantly and has potential for widespread use in medical student education. [ABSTRACT FROM AUTHOR]

Objectives: The COVID-19 pandemic has had a profound effect on the pediatric population worldwide. The consequences of the lockdown and the reallocation of hospital resources have caused notable changes in the presentation of pediatric orthopedic injuries. Through our use of patient records, we were able to display the epidemiological trends, as well as analyze the changes in the type and mechanism of various injuries. Our purpose is to further understand the considerable effects of the COVID-19 pandemic on pediatric orthopedic trauma and help guide the allocation of future healthcare resources. Methods: We conducted a retrospective cohort study on pediatric patients admitted for any orthopedic injury over a 3-year period (September 2018 to August 2021) at a Midwest level 1 trauma center. Cases were stratified into two groups based on the United States' COVID-19 lockdown (19 March 2020): Pre-COVID-19 cases were any cases prior to the lockdown and Intra-COVID-19 which are cases following the lockdown. Numerical data and categorical variables were summarized and differences between the case groups were examined using either two-Proportion Z-Test, Independent Two-Sample t-test, Pearson's chi-squared, or Fisher's exact tests. Results: A total of 3179 pediatric orthopedic referrals occurred between the Pre-COVID-19 and Intra-COVID-19 study periods. We observed a general decrease in orthopedic injuries following the COVID-19 lockdowns with 1235 injuries compared to 1606 Pre-COVID-19. Patterns in the locations of injuries changed; notably, fractures of the humerus, tibia, and fibula decreased significantly (p < 0.05). Several mechanisms of injuries decreased significantly following the onset of COVID-19 including injuries caused by monkey bars, basketball, and automobiles (p < 0.01). There was a significant increase in the overall injury severity during the Intra-COVID-19 period (p < 0.05). Conclusions: Although there was a reduction in acute orthopedic trauma referrals, many injury mechanisms displayed similar trends regardless of restrictions. We clinically observed an overall increase in the severity of pediatric orthopedic injuries during the COVID-19 pandemic. [ABSTRACT FROM AUTHOR]

Background: Displaced diaphyseal fractures can be reduced using the push-pull technique, wherein a plate is affixed to the distal fragment of the fracture, a post screw is placed proximal to the plate, and a lamina spreader creates distraction. This study evaluated the load to failure and mechanism of failure of bicortical and unicortical post screws during reduction. Materials and Methods: Four matched pairs of cadaver legs were subjected to a 2-cm oblique osteotomy simulating a displaced, oblique diaphyseal fracture. A 6-hole compression plate was affixed to the distal fragment with 2 unicortical locking screws, and a 12-mm unicortical or 20-mm bicortical screw was inserted as a post screw proximal to the plate. A lamina bone spreader was used to exert a distraction force between the plate and the post screw. A mechanical actuator simulated the distraction procedure until failure. Maximum applied load, displacement, and absorbed energy were recorded and compared across unicortical and bicortical groups by paired t tests. Results: At maximum load, we found statistically significant differences in displacement (P=.003) and energy absorbed (P=.022) between the two groups. All unicortical screws failed through screw toggle and bone cut-out. Bicortical screws failed through bending, with no visible damage to the bone at the screw site. Conclusion: When diaphyseal fractures are significantly shortened and require a greater distraction force to achieve reduction, bicortical screws demonstrate a higher mechanical load to failure and increased bone loss from the screw-removal site. A unicortical post screw may be used if minimal distraction is needed. [Orthopedics. 2024;47(5):308–312.] [ABSTRACT FROM AUTHOR]

Purpose: Malalignment of distal tibia fractures can lead to malunion/nonunion or alter the limb mechanical axis which may cause arthritis. Proposed methods to decrease malalignment include fibular fixation or multiplanar interlocking screws, however these remain controversial. This study aimed to identify factors associated with malalignment in distal tibial fractures with associated fibular shaft fractures. Methods: A retrospective review was performed of distal tibia fractures with associated fibular shaft fractures treated with intramedullary nailing at two level one trauma centers between 2015 and 2019. Cases involving malalignment (> 5° of deviation from anatomic axis on either coronal/sagittal axis) on final follow-up (minimum three months postoperatively) were compared to those without malalignment with regard to demographics, fracture characteristics, intraoperative characteristics, and complications. Results: The rate of malalignment was 13%. On multivariate analysis, multiplanar distal interlocking screw fixation (odds ratio [OR], 0.18; 95% confidence interval [CI] 0.03–0.92) was associated with a decreased rate of final malalignment, while nail diameter > 10 mm was associated with a higher rate (OR, 4.05; 95% CI 1.25–13.11). Fibular fixation was not associated with malalignment. Conclusion: Multiplanar distal interlocking screws may protect against malalignment. Fibula fixation does not appear associated with a decreased rate of malalignment in distal tibia fractures treated with intramedullary nails. Level of Evidence: III. [ABSTRACT FROM AUTHOR]

Purpose: Weight-bearing (WB) radiographs are commonly used to judge stability of type B fibula fractures and guide the choice of treatment. Stable fractures can be treated conservatively, and unstable fractures surgically. The question is raised how much weight patients actually put on their broken ankle while making a WB radiograph. The current study will give insight in the actual amount of WB in WB radiographs. Methods: In this retrospective cohort study, 57 patients with a type B fibula fracture with a medial clear space (MCS) < 6 mm on regular mortise (RM) view who underwent a WB radiograph were included. We designed a ramp with a scale in the plateau where the radiographs were taken. Total body weight (TBW) and amount of WB on the fractured limb were measured. Results: The mean WB on the fractured limb was 49 (13–110) kg and the mean TBW was 79 (45–128) kg, calculating a mean percentage of WB of 63. The mean MCS on the RM radiograph was 3.0 mm, compared to 2.9 mm on the WB radiograph. The mean superior clear space (SCS) was 3.2 mm on the RM view, compared to 3.2 mm on the WB radiograph as well. The average fibular dislocation was 1.5 mm on the RM radiograph, compared to 1.6 mm on the WB radiograph. Conclusion: There is a big variability in the amount of weight-bearing on the ankle when a WB radiograph is made. This is important to keep in mind when assessing the radiographs and deciding on the treatment course. [ABSTRACT FROM AUTHOR]

The incidence of paediatric fractures among winter sport athletes is not adequately studied. Our objective was to categorize fractures that occurred in paediatric skiers and snowboarders at a single ski resort. X-rays of 756 skiers/snowboarders aged 3–17 diagnosed with a fracture were categorized using the Salter-Harris (SH) classification. SH fractures were seen in 158 (21%) patients, with 123 (77%) being Type II. There were no significant differences between patients with a SH fracture and patients with a non-SH fracture for age, sex, snowboarding or skiing, mechanism of injury, terrain or the resort conditions on the day of injury. The most common mechanism of injury was falling onto snow while collisions resulted in more severe injuries. Compared to fractures without growth plate involvement, a higher proportion of SH fractures were seen in the humerus, radius, fibula and thumb; a lower proportion of SH fractures were observed at the tibia and clavicle. [ABSTRACT FROM AUTHOR]

This is a case of a 21-year-old male, African American Division I basketball player with a fibula stress fracture. The athlete initially reported pain, without distinct injury and was diagnosed with a stress fracture. After a short period of immobilization in a walking boot, this individual opted to undergo surgical intervention consisting of an intramedullary screw inserted in his left fibula. This was in consultation with the orthopedic team physician and orthopedic trauma surgeon. After a brief period of rest and continued immobilization in a walking boot, weight bearing as tolerated, the patient was able to start rehabilitation. He continued rehabilitation and progressive return to activity and was able to return to limited practice approximately 4 weeks. He played 13 min of a game in under 5 weeks (31 days). Stress fractures are not uncommon in basketball players, but a fibula stress fracture is one not often seen, and there is a paucity of data in the literature regarding this injury. A nonoperative approach to treatment of a fibula stress fracture typically yields good results but may lead to longer return than a surgical intervention. Providing athletes options for treatment may result in a quicker recovery. This case demonstrates a novel treatment option resulting in a quicker return to play. [ABSTRACT FROM AUTHOR]

Purpose: The aim of this study was to describe the incidence and a complex pathoanatomy of posterior malleolus fractures in a Maisonneuve fracture. Methods: The study included 100 prospectively collected patients with a complete clinical and radiological documentation of an ankle fracture or fracture-dislocation including a fracture of the proximal quarter of the fibula. Results: A posterior malleolus fracture was identified in 74 patients, and in 27% of these cases it carried more than one quarter of the fibular notch. Displacement of the posterior fragment by more than 2 mm was shown by scans in 72% of cases. Small intercalary fragments were identified in 43% of cases. Fractures of the Tillaux–Chaput tubercle were identified in 20 patients. Conclusion: Our study has proved a high rate of posterior malleolus fractures associated with a Maisonneuve fracture, and documented their considerable variability in terms of involvement of the fibular notch, tibiotalar contact area, direction of displacement and frequency of intercalary fragments. Of no less importance is a combination of Tillaux–Chaput fractures with a Maisonneuve fracture. [ABSTRACT FROM AUTHOR]

Tillaux fractures, a rare type corresponding to Salter-Harris type 3, are observed in approximately 3% of pediatric ankle fractures. They are known to occur primarily via a supination-external rotation mechanism. Maisonneuve fractures, on the other hand, are proximal fibula fractures involving injury on syndesmosis, deltoid ligament, or medial malleolus fracture, occurring via a pronation-external rotation mechanism. These two types of fractures occur through different mechanisms of injury. In this study, a nine-year-old female pediatric patient presented to the outpatient department with ankle pain following a fall from a trampoline and was diagnosed with concurrent Tillaux-like fracture and Maisonneuve fractures. Surgical treatment was performed, resulting in successful recovery. [ABSTRACT FROM AUTHOR]

The purpose of this current concepts review is to highlight the evaluation and workup of hamstring injuries, nonoperative treatment options, and surgical decision-making based on patient presentation and injury patterns. Hamstring injuries, which are becoming increasingly recognized, affect professional and recreational athletes alike, commonly occurring after forceful eccentric contraction mechanisms. Injuries occur in the proximal tendon at the ischial tuberosity, in the muscle belly substance, or in the distal tendon insertion on the tibia or fibula. Patients may present with ecchymoses, pain, and weakness. Magnetic resonance imaging remains the gold standard for diagnosis and may help guide treatment. Treatment is dictated by the specific tendon(s) injured, tear location, severity, and chronicity. Many hamstring injuries can be successfully managed with nonoperative measures such as activity modification and physical therapy; adjuncts such as platelet-rich plasma injections are currently being investigated. Operative treatment of proximal hamstring injuries, including endoscopic or open approaches, is traditionally reserved for 2-tendon injuries with >2 cm of retraction, 3-tendon injuries, or injuries that do not improve with 6 months of nonoperative management. Acute surgical treatment of proximal hamstring injuries tends to be favorable. Distal hamstring injuries may initially be managed nonoperatively, although biceps femoris injuries are frequently managed surgically, and return to sport may be faster for semitendinosus injuries treated acutely with excision or tendon stripping in high-level athletes. [ABSTRACT FROM AUTHOR]

Background: The treatment of distal tibia fractures (DTF) has historically been a difficult challenge for orthopedic surgeons because of the particular characteristics of this anatomical region. Intra medullary nailing (IMN) remains the best treatment option. However, achieving and maintaining perfect reduction and stable fixation with IMN can be technically challenging due to the large medullary cavity within a short distal fragment. The aim of our study is to determine the risk factors for malunion in DTF treated with IMN. Methods: It is a retrospective study including DTF treated surgically by IMN in the Orthopedics and Trauma Department at a tertiary hospital over a period of 7 years. The quality of reduction was evaluated by radiological assessment of the antero-posterior (AP) and lateral views of the tibia and ankle at the last follow-up. Results: Our series included 90 patients with an average age of 44.8 years. Sex-ratio was 2.6. Tobacco use was reported in 35.6% of the patients. Diabetes was present in 11.1% of the patients, and 12.2% of them had open fractures. According to the OTA/AO classification, the majority of injuries were classified as type A1 (76.7%). Fibula fractures were present in 86.7% of cases. The mean follow-up was 48 months. Malunion occurred in 13 cases. Based on the univariate analysis, smoking and dynamic fixation were significantly associated with malunion. In the multiple logistic regression analysis, dynamic fixation was found to be a significant factor that increased the risk of malunion by 7.5 times. Conclusion: Neither patient demographics nor fracture characteristics were risk factors for malunion. Nevertheless, it should be noted that dynamic nailing must be avoided as it is associated with a higher risk of malunion. Furthermore, one to two medial to lateral distal locking screws provide sufficient stability without the need for additional fibular fixation. Trial registration: Not applicable. [ABSTRACT FROM AUTHOR]

Purpose: A locking plate (LP) or non-locking plate (NLP) can be used for distal fibula fracture fixation. However, the advantages of LP over NLP in patients with distal fibula fractures are not clear. In terms of indications, the role of the two plates probably differs; however, to draw comparative conclusions, we conceptualized this systematic review and meta-analysis of studies that directly compared the two plates, wherein both groups' indications and baseline parameters were similar. Methods: An electronic literature search was performed using PubMed/Medline, Embase, Scopus, and Cochrane Library databases for studies comparing the LP versus NLP fixation for the lateral malleolus fracture. A total of 18 studies were included in qualitative and quantitative analysis. A subgroup analysis was performed for patients aged < 55 years and patients aged > 55 years. The statistical analysis was performed by Review Manager Software version 5.4.1. Results: A meta-analysis of 4243 fractures was performed across 18 studies. The rate of fracture union and overall complication rates did not differ between the two fixation groups with an OR of 0.71 (95% CI 0.26, 1.96, p = 0.51 and 1.11 (95% CI 0.84, 1.47, p = 0.47, respectively. There is no difference in the reoperation rate due to minor or major complications between the two groups. There was no difference in functional outcome (MD −0.85, with 95% CI −5.63, 3.93, p = 0.73), but NLP has a shorter surgical duration (MD 3.0, with 95% CI 0.26, 5.75, p = 0.03). A leave-one-out sensitivity analysis performed for overall complications affected the final outcome of the meta-analysis. Conclusion: This meta-analysis demonstrates no clear benefit in selecting LP over NLP for the fixation of lateral malleolus fractures. [ABSTRACT FROM AUTHOR]

Background: While lower extremity fractures are common injuries, concomitant compartment syndrome can lead to significant implications and surgical release (fasciotomy) is essential. The aim of this study was to identify potential predictors of compartment release and risk factors related to complications. Using a large nationwide cohort, this study compared patients suffering from lower extremity fractures with and without compartment syndrome during their primary in-hospital stay following trauma. Methods: A retrospective analysis was conducted using the prospective surgical registry of the working group for quality assurance in surgery in Switzerland, which collects data from nearly 85% of all institutions involved in trauma surgery. Inclusion criteria Patients who underwent surgical treatment for tibia and/or fibula fractures between January 2012 and December 2022 were included in the study. Statistics Statistical analysis was performed using Chi-square, Fisher's exact test, and t test. Furthermore, a regression analysis was conducted to determine the independent risk factors for fasciotomy and related complications. In the present study, a p value less than 0.001 was determined to indicate statistical significance due to the large sample size. Results: The total number of cases analyzed was 1784, of which 98 underwent fasciotomies and 1686 did not undergo the procedure. Patients with fasciotomies were identified as significantly younger (39 vs. 43 years old) and mostly male (85% vs. 64%), with a significantly higher American Society of Anesthesiologists (ASA) score (ASA III 10% vs. 6%) and significantly more comorbidities (30% vs. 20%). These patients had significantly longer duration of surgeries (136 vs. 102 min). Furthermore, the total number of surgical interventions, the rate of antibiotic treatment, and related complications were significantly higher in the fasciotomy group. Sex, age, comorbidities, and fracture type (both bones fractured) were identified as relevant predictors for fasciotomy, while ASA class was the only predictor for in-hospital complications. Outcomes Patients who underwent fasciotomy had a significantly longer hospital stay (18 vs. 9 days) and a higher complication rate (42% vs. 6%) compared to those without fasciotomy. While fasciotomy may have played a role, other factors such as variations in patient characteristics and injury mechanisms may also contribute. Additionally, in-house mortality was found to be 0.17%, with no patient death recorded for the fasciotomy group. Conclusions: Fasciotomy is vital. The knowledge about the further course is, however, helpful in resource allocation. We found significant differences between patients with and without fasciotomy in terms of age, sex, complication rate, length of stay, comorbidities, duration of operations, and use of antibiotics during their primary in-hospital stay. While the severity of the underlying trauma could not be modulated, awareness of the most relevant predictors for fasciotomy and related complications might help mitigate severe consequences and avoid adverse outcomes. [ABSTRACT FROM AUTHOR]

Background: Ankle fractures are a frequent injury in the adult population and a quarter of all ankle fractures are classified as unstable, requiring surgical intervention. Plate-and-screw construct is the traditionally used fixation method for fibula fractures. The use of an intramedullary nail is an alternative fixation method, with current literature supporting very low complication rates and hardware removal surgeries. The purpose of this study was to evaluate the outcomes, including complication rates and implant removal rates, using a fibula nail with both proximal and distal fixation capabilities by an experienced surgeon. Methods: We retrospectively reviewed 203 consecutive fibula nail cases from a single surgeon using a mini-open technique for anatomic reduction. Demographic, operative, clinical, and radiographic outcome data were analyzed, specifically examining complication rates and need for implant removal. Results: The average follow-up was 18.8 months (6-54 months). All fractures healed. We identified 2 cases of superficial wound infection, 1 superficial peroneal nerve irritation, and 1 case of implant removal. In the first 110 cases, 2 fractures were converted to a plate intraoperatively prior to a technique modification which has prevented this occurrence. No deep infection, delayed union, or nonunion occurred. Conclusion: Our data support that fibula nails with proximal and distal locking capabilities offer an alternative to plating with the potential for lower complication rates and lower need for implant removal. [ABSTRACT FROM AUTHOR]

Purpose: To investigate the clinical efficacy of accelerated rehabilitation surgery for the treatment of Gustilo type IIIA/B open tibiofibular fracture with emergency stage I debridement, internal fracture fixation, bone grafting, coverage of the wound surface with a muscle flap combined with vacuum sealing drainage (VSD), and internal and lateral leg reduction. Methods: A retrospective analysis was performed on the clinical data of 15 patients with Gustilo type IIIA/B open tibiofibular fracture who were admitted to the Affiliated Zhongshan Hospital of Dalian University from January 2015 to December 2018. There were 12 males and 3 females. The patients ranged in age from 20 to 62 years, with an average of 39.5 years. After admission, the patients underwent stage I emergency debridement (including exploration and repair of nerves and tendons), open reduction and internal fixation of the tibia and fibula, iliac bone grafting, muscle flap and VSD coverage of the bone defect, complete tensioning of the calf inside and outside, tibia-sparing incision before healing, and stage II free skin grafting. Patients were followed up periodically to observe muscle flap survival, fracture healing time, length of hospitalization, wound healing time, delayed union, bone nonunion, osteomyelitis and other complications. At the last follow-up, the Johner–Wruhs criteria were used to evaluate the rate of good functional recovery from tibial shaft fracture, fracture healing quality was evaluated by the Merchant score, and limb function was evaluated by the LEFS. Results: All 15 cases were followed up for 12–32 months, with an average of 22.8 months. All the fractures healed; the range of healing time was 14–30 weeks (mean 18.5 weeks). The length of hospitalization was 25.1 ± 7.6 days, and wound healing took 12.2 ± 2.0 days. None of the patients had complications such as osteomyelitis infection. When the Johner–Wruhs evaluation criteria for functional recovery from tibial shaft fracture were applied at the last follow-up, the outcomes were as follows: excellent in 13 cases, good in 1 case and fair in 1 case, for an excellent and good rate of 93.3%. When fracture healing was evaluated according to the Merchant scoring standard, the outcomes were as follows: excellent in 12 cases, good in 1 case, fair in 1 case, and poor in 1 case, for an excellent and good rate of 86.7%. The mean LEFS score of the affected limb at the last follow-up was 70 (59–80). Conclusion: For Gustilo type IIIA/B open tibiofibular fractures, emergency stage I debridement, internal fixation of the fracture, bone grafting, coverage of the wound with a muscle flap, complete tensioning of the calf inside and outside, and application of VSD can improve the repair of leg soft-tissue defects, shorten hospitalization time, promote fracture healing, and effectively reduce infection and complications related to bone exposure. More importantly, this treatment protocol provides effective wound repair, guarantees the recovery of limb function, significantly speeds up recovery, and improve patients' quality of life. [ABSTRACT FROM AUTHOR]

Background: Suture button fixation is frequently used to stabilize the distal tibiofibular syndesmosis in athletes sustaining an isolated ligamentous syndesmosis injury. Purpose: To report on a series of periprosthetic fibula fractures adjacent to the lateral suture button after a subsequent unrelated ankle injury or progressive stress injury after initial ankle syndesmosis stabilization using the knotless TightRope (Arthrex). Study Design: Case series; Level of evidence, 4. Methods: Eight elite athletes with periprosthetic fibula fractures and stress injuries around the lateral suture buttons were evaluated. In all athletes, the knotless TightRope had been used to stabilize an isolated ligamentous ankle syndesmotic injury, after which all patients recovered and returned to professional sports at their preinjury level. The athletes subsequently developed an acute fibula fracture or a fibula stress fracture related to the 3.7-mm drill hole in the fibula adjacent to the lateral suture buttons after a mean of 14.1 months (range, 5-29 months). The management of these complications was analyzed. Results: Five athletes sustained a periprosthetic fibula fracture in the form of undisplaced spiral Weber B injuries after a subsequent, unrelated injury. Poor healing response was noted with initial nonoperative treatment for the first 2 athletes, and surgical intervention was performed with successful union of the fracture and return to sports. The subsequent 3 athletes had early surgery with uneventful recovery. Another 3 athletes developed stress injuries adjacent to the fibula suture button without a history of acute trauma. In 2 of the 3 athletes, the position of lateral suture buttons was in the anterior third of the fibula. Initial nonoperative management yielded poor healing response, and subsequent surgical intervention was required to enable healing and return to sports. Conclusion: Nonoperative management of fractures adjacent to the fibula suture button of a knotless TightRope may lead to a delay in union. Therefore, early surgical intervention should be considered in elite athletes, whose return-to-sports time is critical. Care is needed to ensure that the fibula hole for the suture button is centrally located because the eccentric placement of the fibula hole in the anterior third of the fibula may contribute to the development of a stress reaction or stress fracture. Surgical intervention for a periprosthetic fibula stress fracture leads to satisfactory resolution of symptoms. [ABSTRACT FROM AUTHOR]

Purpose: Proximal fibula fractures are often associated with tibial plateau fractures, but their relationship is poorly characterized. The purpose of this study was to better define the relationship between tibial plateau injury severity and presence of associated soft tissue injuries. Methods: A retrospective review was performed on all operatively treated tibial plateau fractures at a Level 1 trauma center over a 5-year period. Patient demographics, injury radiographs, CT scans, operative reports and follow-up were reviewed. Results: Queried tibial plateau fractures from 2014 to 2019 totaled 217 fractures in 215 patients. Fifty-two percent were classified as AO/OTA 41B and 48% were AO/OTA 41C. Thirty-nine percent had an associated proximal fibula fracture. The presence of a proximal fibula fracture had significant correlation with AO/OTA 41C fractures, as compared with AO/OTA 41B fractures (chi-square, p < 0.001). Of the patients with a lateral split depression type tibial plateau fracture, the presence of a proximal fibula fracture was associated with more articular comminution, measured by number of articular fragments (mean = 4.0 vs. 2.9 articular fragments, p = 0.004). There was also a higher rate of meniscal injury in patients with proximal fibula fractures (37% vs. 20%, p = 0.003). Conclusions: There was a significant relationship between the higher energy tibial plateau fracture type (AO/OTA 41C) and the presence of an associated proximal fibula fracture. The presence of a proximal fibula fracture with a tibial plateau fracture is an indicator of a higher energy injury and a higher likelihood of meniscal injury. [ABSTRACT FROM AUTHOR]

Background: Lateral malleolus fractures are very common, and the distal fibular geometry is complex. This study aimed to classify the lateral malleolus fossa (MF) into different types by characterizing the lateral MF imaging morphology and exploring the relationship between the lateral MF and internal fixation position after distal fibula fractures. Methods: Anteroposterior CT reconstruction was performed on 248 subjects. After reconstruction, the deepest point of the lateral MF was located, and then, the cross-sectional shape of the lateral MF was observed and classified. Results: According to the morphology of the CT cross section, the lateral MF was divided into three types: type C (43.1%), type V (32.2%), and type Flat (24.7%). Type V (3.98 ± 0.82) was significantly longer than type C(2.83 ± 0.54) and type Flat (1.84 ± 0.42) in cd. Similarly, in ∠α, Type Flat(136.31 ± 9.63) was the largest, followed by type C (116.51 ± 8.79), and type V (89.31 ± 9.07) was the smallest. Other measurements were not found any significant differences between the above. Conclusion: According to the morphology of the CT cross section, the lateral MF was divided into three types: type C, type V and type Flat. Type V is most likely to be invaded when fixing the distal fibula. Screws less than 9 mm should be selected when fixing, and screws no more than 10 mm should be selected when there are type C and type Flat of MF. [ABSTRACT FROM AUTHOR]

A 74-year-old female patient, who underwent surgery for a left distal tibiofibular fracture 40 years earlier, visited the hospital with an ankle varus deformity due to malunion. The patient complained of discomfort while walking due to the ankle and hindfoot varus deformity but did not complain of ankle pain. Therefore, correction using supramalleolar osteotomy was planned, and through virtual surgical simulation, it was predicted that a correction angle of 24° and an osteotomy gap open of 12 mm would be necessary. An osteotomy guide and an osteotomy gap block were made using three-dimensional (3D) printing to perform the osteotomy and correct the deformity according to the predicted goal. One year after surgery, it was observed that the ankle varus was corrected according to the surgical simulation, and the patient was able to walk comfortably. Thus, for correction of deformity, virtual surgical simulation and a 3D-printed osteotomy guide can be used to predict the target value for correction. This is useful for increasing the accuracy of correction of the deformity. [ABSTRACT FROM AUTHOR]

Open limb fractures are a time-critical orthopaedic emergency that present to jurisdictional ambulance services. This study describes the demographic characteristics and epidemiological profile of these patients We undertook a retrospective analysis of all patients that presented to Queensland Ambulance Service with an open limb fracture (fracture to the humerus, radius/ulna, tibia/fibula or femur) over a two-year period (January 2018 – December 2019). Overall, 1020 patients were included. Patients were mainly male (65.9%) and middle-aged (age 41 years, IQR 22–59). Fractures predominately occurred in the lower extremities (64.9%) with transport crashes the primary mechanism of injury (47.8%). The location of the fracture varied depending on the cause of injury, with femur fractures associated with motorcycle crashes, and fractures to the radius/ulna attributed to falls of greater than one metre (p = 0.001). The median prehospital episode of care was 83 min (IQR 62–144) with aeromedical air ambulance involvement and the attendance of a critical care paramedic or emergency physician, both independent factors that increased this time interval. Open limb fractures are a relatively infrequent injury presentation encountered by ambulance clinicians. The characteristics of these patients is consistent with previously described national and international out-of-hospital trauma cohorts [ABSTRACT FROM AUTHOR]

Background: The association of tibial shaft fractures (TSFs) with posterior malleolar fractures is well described. The purpose of this study was to identify specific radiographic parameters that are predictive of any pattern of associated distal intra-articular fractures in TSFs. Methods: All TSFs presenting over a 6-year period were identified. A radiographic review of plain radiographs and CT scans included: identification of any associated ankle fracture, classification using the OTA System, measurements of the TSF obliquity angle (FOA), relative distance from distal extent of the TSF to plafond (DFP%), and presence and level of any associated fibular fractures. Patients with and without associated ankle fractures were statistically compared. Multivariate logistic regression determined independent predictors of associated ankle fractures. Results: 405 TSFs in 397 patients were identified, with 145 TSFs with associated distal intra-articular fractures. There were 94 (23.2%) posterior malleolar fractures, 19 (13.1%) medial malleolar fractures, 42 (29.0%) lateral malleolar fractures involving the syndesmosis and 14 (9.7%) Chaput fragments. Multivariate regression demonstrated AO/OTA classification type 42-A1, 42-B1 or 42-C1 (OR 2.3 [95% CI 1.3–4.0]; p = 0.003), FOA greater than 45° (OR 2.7 [95% CI 1.5–4.8]; p = 0.001) and DFP% less than 33% (OR 4.1 [95% CI 2.0–9.0]; p = 0.005) were independent correlates of associated ankle fractures regardless of mechanism of injury. Conclusions: Different patterns of intra-articular fractures beyond posterior malleolar fractures can occur in TSFs. Fracture angles greater than 45° and extent into the distal 33% of the tibial shaft are independent predictors of distal intra-articular fractures in TSFs regardless of mechanism of injury. Level of Evidence: Diagnostic Level III. [ABSTRACT FROM AUTHOR]

In March 2020, Germany imposed a nationwide lockdown to curb the spread of COVID-19, prompting questions about the impact on the incidence of common fractures. This study examined 15 fracture types in pre-outbreak (2010–2019) and post-outbreak (2020–2021) periods, using data categorized by age (18–64 years, >65 years) and sex (male, female). Linear regression assessed annual growth rates, and mean fracture numbers were compared across periods for significant differences. Results indicated a positive correlation between fracture incidence rates and time for various types, such as cervical, thoracic, lumbar, and pelvic spine fractures, rib fractures, femoral neck, pertrochanteric femur, femoral shaft, and ankle fractures. Frequencies of proximal humerus, distal radius, femoral neck, pertrochanteric femur, femoral shaft, and ankle fractures in 2020 and 2021 were within predicted ranges from previous years. However, rib fractures and spinal fractures (cervical, thoracic, lumbar, and pelvic spine) occurred less frequently during this time. Notably, this study found a consistent decline in most fracture types for individuals aged 18–64 after the pandemic's onset, while the fracture incidence of hip fractures, often referred to as fragility fractures, for those over 65 remained unchanged. Fibula fractures showed the most considerable decrease in both age groups. In conclusion, the COVID-19 pandemic substantially impacted fracture incidence, with lower rates among individuals under 65 and unchanged fragility fractures in the elderly population. [ABSTRACT FROM AUTHOR]

Background: The purpose of this study was to identify specific radiographic parameters that are predictive of associated PM fractures in TSFs. Methods: All TSFs presenting over a 6-year period were identified. A review of plain radiographs and CT scans included: identification of an isolated PM fracture, AO/OTA classification, measurements of the fracture obliquity angle (FOA), absolute and relative distance from distal extent of fracture to plafond (DFP and DFP%), and presence and level of associated fibular fractures. Patients with and without PM fractures were compared. Multivariate logistic regression determined independent correlates of PM fractures and cutoff values for FOA and DFP%. Results: A total of 405 TSFs in 397 patients were identified, and 94 TSFs (23.2%) had an associated PM fracture. The majority (85.1%) of TSFs with PM fractures were AO/OTA type 42-A1, 42-B1 or 42-C1 (p < 0.001). The mean FOA was 60.9 ± 12.1° in the PM group versus 40.8 ± 18.9° in the non-PM group (p < 0.001). The mean DFP was 5.9 ± 2.7 cm in the PM group versus 11.9 ± 7.9 cm in the non-PM group (p < 0.001). Multivariate regression demonstrated that AO/OTA classification type 42-A1, 42-B1 or 42-C1 (OR 4.7 [95% CI 2.4–9.8]; p < 0.001), FOA greater than 45° (OR 4.4 [95% CI 1.9–10.9]; p = 0.001) and fracture extension to the distal third of the tibia (DFP% < 33%; OR 18.3 [95% CI 3.8–330.4]; p = 0.005) were independent correlates of PMs fractures regardless of mechanism of injury or fibula fracture presence or location (AUROC 0.83 [95% CI 0.80–0.87]). Separate multivariate regression showed for every 1° increase in FOA, PM fracture odds increase 6% per degree and for every 1 cm increase in DFP odds of PM fracture decreased by 15%. Conclusions: Spiral fractures (simple, wedge or complex), fracture angles greater than 45° and extension into the distal 1/3 of the tibial shaft are independent predictors of PM fractures in TSFs regardless of mechanism of injury. [ABSTRACT FROM AUTHOR]

Introduction: Data concerning injuries resulting from physical force during legal interventions are scarce. The purpose of this study was to examine manhandling injuries occurring in both civilian suspects and law enforcement officials (LEO). Methods: Retrospective cross-sectional study using data from the National Trauma Data Bank. All patients who sustained manhandling injuries during legal interventions were identified using ICD-10 e-codes. The study groups were injured civilian suspects and LEO. The primary outcomes were type and severity of injuries among the groups. Results: A total of 507 patients were included in the study, 426 (84.0%) civilians and 81 (16.0%) LEO. Overall, median age was 37 years (IQR: 28–48) and 90.3% were male. The median ISS was higher in civilians compared to LEO (5 [4–10] vs 4 [4–9], p = 0.023). Civilians were more likely to sustain injuries to the face (49.8% vs 35.9%, p = 0.024) and abdomen (8.3% vs 1.3%, p = 0.028). LEO were more likely to sustain tibia/fibula fractures (3.5% vs 9.9%, p = 0.019). The mortality was 1.2% (5/426) in civilians and there were no deaths in LEO. The overall complication rates and hospital length of stay were similar between the groups. Conclusion: Injury patterns and severity of injuries sustained from the use of physical force during legal interventions are different in civilians and law enforcement officials. Further research and more comprehensive data are warranted to better understand and prevent these injuries. [ABSTRACT FROM AUTHOR]

Purpose: The objectives of this study were to assess the incidence of vitamin D deficiency in orthopaedic trauma patients, evaluate the safety and efficacy of a vitamin D supplementation protocol, and investigate the utility of vitamin D supplementation in reducing nonunions. Methods: Three hundred seventy patients with operative tibia and/or fibula fractures were retrospectively reviewed. Both overall and matched cohorts were analysed. Results: Ninety-eight per cent (n = 210) were found to have vitamin D insufficiency (serum 25(OH)D level < 30 ng/ml). There were no cases of vitamin D toxicity following vitamin D replacement. Median follow-up vitamin D level was 22.7 ng/mL. No statistical difference between union rates was found between either the two consecutive cohorts or matched cohorts. Conclusion: This vitamin D replacement protocol was a safe treatment for hypovitaminosis D, but post hoc analysis shows there would need to be over 1200 matched patients to achieve adequate power. [ABSTRACT FROM AUTHOR]

Background: Surgical approach and fixation material are crucial in the treatment of comminuted distal fibular fractures accompanied by tibial Pilon fractures. This study compared the efficacy of double-hooked locking plates and anatomic plates in minimally invasive percutaneous plate osteosynthesis (MIPPO) for the treatment of comminuted distal fibular fractures accompanied by tibial Pilon fractures. Methods: Clinical data were collected from 96 patients diagnosed with comminuted distal fibular fractures accompanied by tibial Pilon fractures who had undergone MIPPO. Patients in the study group (n = 48) received double-hooked locking plate fixations and the control group (n = 48) received anatomical plate fixations. The operating time, intraoperative bleeding, length of hospital stays, full weight-bearing time, fracture healing time and complication rates in the two groups were compared. The quality of fracture reduction was evaluated using the Burwell–Chamley imaging scoring system; the ankle function was assessed based on the American Orthopaedic Foot and Ankle Society Ankle-Hindfoot Score. Results: Patients in the study group had shorter operating time, less bleeding, significantly shorter hospital stays, and shorter time to full weight-bearing as well as fracture healing compared to the control group (P < 0.05). Additionally, the post-operative complication rates were significantly lower in the study group (6.16% vs. 22.92%) (P < 0.05), but there was no significant difference in the fracture reduction rate between the two groups (P > 0.05). Patients in the study group experienced better ankle recovery than those in the control group (93.75% vs. 75.00%) (P < 0.05). Conclusion: Double-hooked locking plates have advantages in the treatment of comminuted distal fibular fractures accompanied by tibial Pilon fractures during MIPPO due to their shorter operating time and less intraoperative bleeding, as well as shorter hospital stays, full weight-bearing time and fracture healing time, fewer complications and better ankle recovery. Therefore, double-hooked locking plates are worthy of clinical application. [ABSTRACT FROM AUTHOR]

Purpose: The primary aim was to analyse the lateral malleolus morphology with a focus on the shape of the distal fibula for IM fixation of the fibula in infra- and transsyndesmotic fracture patterns. The secondary aim was to propose a treatment algorithm according to the lateral malleolar anatomy. Methods: 77 healthy, skeletally mature volunteers underwent CT scanning of the ankle. The fibula medullary canal and its cortical thickness were quantitatively analysed at 4 different levels measured from the fibular tip (1.5 cm, 3.0 cm, 4.5 cm, and 6.0 cm). A geometric classification was proposed, and a decision algorithm was developed. Statistical significance was set at a p-value < 0.05. Results: The smallest diameter of the medullary canal of the fibula was at 6.0 cm from the tip of the fibula, in 98.2% of the ankles. The distal fibula can be classified into triangular and rectangular type, according to the cortical thickness index (p < 0.0001). In 16.7% ankles, the internal diameter of the fibula at 6.0 cm was equal or narrower than 3.5 mm (p < 0.05). Conclusion: The shape of the distal fibula as evaluated by CT-guided analysis allows for IM osteosynthesis of the lateral malleolus in 83% of individuals. In our study, the smallest diameter of the medullary canal of the fibula was located 6.0 cm from the tip of the lateral malleolus. Coronal CT evaluation is advantageous in indicating which type of IM implant should be used safely for infra- and transsyndesmotic fracture patterns, potentially reducing intraoperative risks. [ABSTRACT FROM AUTHOR]

Pilon fractures are still very demanding due to the fact that the soft tissue envelope is vulnerable and the primary joint pathology is rather complex although technical advances are made by different preformed locking plate systems. The primary surgical care should be made carefully while a multi-staged strategy has the advantage to reduce soft-tissue complications. Surgical joint reconstruction corelates with functional long-term results and quality of life, so that tools like arthroscopic assisted joint reconstruction and intraoperative 3D imaging should be considered. Despite technical advances and improved surgical techniques long-term results following pilon fractures remain in high percentages unsatisfiable with socio-economic burden. [ABSTRACT FROM AUTHOR]

Purpose: To evaluate existing literature describing the use of free fibular flaps in upper extremity trauma and summarise flap outcomes. Secondary objectives are to evaluate patient demographics and flap characteristics. Methods: EMBASE, PubMed, MEDLINE and the Cochrane Database were searched for eligible studies published from 1975 to January 2019. Primary outcome measures collected were rate of union, graft survival rate, and complication rates. Patient demographics and flap characteristics were also collected. Statistical analysis was performed using SPSS software (SPSS version 25; IBM, Chicago, USA). Pooled data were presented as mean and standard deviation or median and range. Categorical variables were assessed by chi-squared test. Quality of studies were assessed using the National Institutes of Health (NIH) Quality Assessment Tool for case series studies. Results: Initial search yielded 1070 articles. A total of 25 studies (151 cases) met the inclusion criteria. Flap survival was 97% (147/151) at time of follow-up, with first union rate of 95% (142/151) and second union rate of 97% (147/151) following bone graft or further procedure. Overall complication rate was 33% (47/140). There was a statistically significant association between recipient flap site and rates of flap fracture (p = 0.049). There was no statistically significant association between flap type, evidence of infection at donor or defect site, or method of flap fixation on outcomes. Conclusions: Vascularised fibular flaps are a safe and efficacious reconstructive option for upper limb trauma. Further research is required to enable better understanding of the impact of patient and clinical factors on flap outcome measures. [ABSTRACT FROM AUTHOR]

The aim of this study was to compare the effectiveness of syndesmotic screw (SS) and suture button (SB) on the reduction and fixation of syndesmosis via early postoperative bilateral computed tomography (CT). This single-center retrospective study included 76 patients aged ≥ 18 years with a unilateral syndesmosis injury. SS was applied to 40 patients and SB to 36 patients. The differences between the sides stabilized using SB or SS and the intact sides were analyzed using the parameters of tibio-fibular clear space (∆CS) and anterior or posterior sagittal translation (∆ST) depending on the orientation of the fibula. The cases in which the fibula was translocated to the posterior of the tibia after the change of ∆ST and ∆CS> 2 mm were evaluated as malreduction. Axial CT images taken from the level of syndesmosis fixation were divided into 4 zones according to the orientation angle of the implant sent from the fibula to the tibia. No significant difference was found in the analyses performed between total patient group with malreduction and fixation groups in terms of ∆CS and ∆ST values (p = 0.708, p = 0.289). It was observed that the fixation material was in zone 3 in 54 patients and in zone 2 in 22 patients. No significant difference was found in the analyses performed between the SS and SB groups according to the implant zone (p = 0.191). In the SS group sent from Zone 2, the malreduction rate according to the ∆ST value of syndesmosis was found to be significantly higher than in the SB group (p = 0.008, p = 0.003). When the implant is applied with the correct technique, there is no difference between SS and SB in terms of early postoperative reduction. When the SS is advanced at an inappropriate angle, it negatively affects the reduction of the fibula, while SB can better tolerate angle errors up to certain degrees due to its flexible structure. Therefore, it can be presumed that the suture button system is a more convenient method in the reduction and fixation of syndesmosis than the syndesmotic screw. Level IV [ABSTRACT FROM AUTHOR]

Background and purpose -- Physeal fractures represent 15-20% of all pediatric fractures and may lead to premature physeal closure (PPC). The aim of our study was to determine the incidence rates of physeal fractures in the lower limb and the proportion of PPC that lead to limb length discrepancy (LLD), and/or angular deformity (AD). Patients and methods -- This retrospective study included 236 consecutive children with physeal fracture in the tibia, distal femur, or distal fibula. We estimated incidence rates and reviewed medical records and radiographs to obtain information regarding the development of PPC leading to LLD and AD. Of the 236 children, 100 had planned growth control or were referred for growth control due to symptoms of PPC. Results -- The total incidence rate was 35 (95% CI 30-39) per 100,000 person-years, with 1.2 (CI 0.5-23) for distal femur, 5.7 (CI 3.1-7.8) for proximal tibia, 14 (CI 11-17) for distal tibia, and 14 (CI 11-17) for distal fibula. The overall prevalence of PPC was 9.7% (CI 6.3-14), while the prevalence was 38% (CI 8.5-76) for distal femur, 15% (CI 5.9-31) for proximal tibia, 14% (CI 7.4-22) for distal tibia, and 1.1% (CI 0.3--59) for distal fibula. We found a significant higher hazard of PPC in fractures with ≥ 3 mm displacement (hazard ratio: 12, CI 1.5-97). Conclusion -- 10% of children with physeal fractures developed PPC that led to LLD or AD. The highest hazard ratio was in children who had an initial fracture displacement. This study highlights the importance of routine and uniform growth evaluation after a physeal fracture. [ABSTRACT FROM AUTHOR]

Tibiotalocalcaneal (TTC) arthrodesis is considered a salvage procedure for either complex deformity or arthritis about the hindfoot, and can be performed via fibula-resection (FR) or fibula-sparing (FS) approaches. The primary aim of this study was to investigate differences in outcomes in FR versus FS TTC arthrodeses. This was a retrospective cohort study reviewing outcomes of TTC arthrodesis at a single institution. Patients who underwent a TTC arthrodesis from 2005 to 2017 and had minimum two-year follow-up were included. Preoperative diagnosis, pre- and post-operative radiographic coronal alignment, fixation methods, and complications were compared between groups. 107 patients (110 ankles) underwent TTC arthrodesis, with a mean age of 57.0 years (sd, 14.0 years). The mean clinical follow-up was 50.7 months (range, 24–146) and mean radiographic follow-up was 45.8 months (range, 6–146 months). Pre-operative diagnoses included arthritis (N = 40), prior non-union (N = 21), Charcot neuro-arthropathy (N = 15), failed total ankle arthroplasty (N = 15) and avascular necrosis of the talus (N = 19). Sixty-nine ankles comprised the FS group and 41 comprised the FR group. There was no significant difference in the non-union rate between groups (29% FR vs 38% FS, p = 0.37), complication rate (59% FR vs 64% FS, p = 0.59), or post-operative coronal standing radiographic alignment (89.6 degrees FR, 90.5 degrees FS, p = 0.26). Logistic regression analyses demonstrated a pre-operative diagnosis of failed TAA was associated with post-operative nonunion (OR:3.41,CI:1.13–11.04,p = 0.03). Pre-operative indication for TTC arthrodesis of arthritis alone was associated with a decreased risk of non-union (OR:0.27,CI:0.11–0.62,p = 0.002). TTC arthrodesis is a successful surgical option for complex hindfoot deformity, arthritis, and limb salvage regardless of surgical approach. We did not detect a difference in the union rate, incidence of complications, or coronal plane radiographic alignment in fibula-sparing versus fibula-resection constructs. Patients with a pre-operative indication for surgery of arthritis may be at decreased risk of developing non-union. III – Retrospective cohort study [ABSTRACT FROM AUTHOR]

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Purpose: The study aims to determine the effect of fibular fixation on alignment and fracture healing of tibia, and ankle functional outcomes in the treatment of distal third tibiofibular diaphyseal fractures. Methods: Consecutive 111 patients (33 females and 78 males) with distal third tibiofibular diaphyseal fracture who met the inclusion criteria were included in the study. Patients were divided into two groups as those who underwent fibular fixation with tibia intramedullary nailing (study group) and those who did not (control group). Groups were compared in terms of demographic features, trauma and fracture characteristics, functional and radiological outcomes. Results: No significant difference was observed between the groups in terms of demographic features, trauma characteristics, complications, and follow-up time (p > 0.05). Surgery time was significantly lower in the control group (p = 0.001). Ankle joint range of motion, AOFAS score, OMAS score, and full weight-bearing time were significantly better in the fibular fixation group (p = 0.023, p = 0.001, p = 0.001 and p = 0.039, respectively). Significantly better coronal alignment and sagittal alignment were found in the fibular fixation group (p = 0.001 and p = 0.001, respectively). Patients who underwent fibular fixation had significantly better radiological outcomes in terms of fibular rotation angle and ankle arthrosis (p = 0.000 and p = 0.022, respectively). Conclusion: Fibular fixation not only contributes to fracture union, early full weight-bearing, and alignment but also improves ankle functional outcomes in the distal third tibiofibular fractures treated with intramedullary nailing for tibia. Level of evidence: Level III, retrospective study. [ABSTRACT FROM AUTHOR]

Background: Intramedullary nailing of the fibula (FN) is a method of fixation that has proven to be useful for treating distal fibular fractures (DFs). FN minimizes soft tissue complications and provides similar stability to plating, with fewer hardware-related symptoms. Nevertheless, FN has been associated with syndesmotic malreduction and the incapacity of restoring length and rotation of the fibula. We aimed to evaluate the fibular position and syndesmotic reduction after fixation with FN compared with the uninjured ankle in the immediate postoperative period. Methods: Prospective cohort study. Patients with DF fractures treated with IN between January 2017 and January 2020 were included. Immediate postoperative bilateral ankle CT was obtained in all cases. Fibular rotation, length, and translation as well as syndesmotic diastasis were measured on both ankles and compared by 3 independent observers. Results: Twenty-eight patients were included (16 women). The mean age was 46 years (range 16-91). Fracture type distribution according to AO/ASIF classification included 19 patients with 44.B (67.9%), 8 patients with 44.C (28.6%), and 1 patient with a 44.A fracture (3.6%). No significant differences were identified considering fibular rotation (P = .661), syndesmotic diastasis (P = .147), and fibular length (P = .115) between the injured and uninjured ankle. Fibular translation had statistical differences (P = .01) compared with the uninjured ankle. The intraclass correlation coefficient showed an excellent concordance between observers except for fibular translation on the injured ankle. Conclusion: In this cohort, fixation of DF fractures with FN allows restoration of anatomical parameters of the ankle in terms of fibular rotation, length, and syndesmotic diastasis. However, fibular translation had significant differences compared with the uninjured ankle based on bilateral CT scan evaluation. [ABSTRACT FROM AUTHOR]

Background: Large femoral defects after trauma, femoral non-unions, fractures complicated by osteomyelitis or defects after bone tumour resection present high burden and increased morbidity for patient and are challenging for reconstructive surgeons. Defects larger than 6 cm and smaller defects after failed spongioplasty are suitable for reconstruction using a free, eventually a pedicled vascularised bone flap. The free fibular flap is preferred but an iliac crest free flap or a pedicled medial femoral condyle flap can be also used. These vascularised flaps are ideal for bridging defects of long bones and can be also used as osteocutaneous or osteomuscular flaps for coverage of soft tissue defect if present. The patients and their families were informed that data will be submitted for publication and they gave their written informed consent prior to the submission. The study was approved by the institutional ethic committee., Methods: We analysed a group of eight patients with large diaphyseal or distal metaphyseal femoral defects. A free fibular flap was used in six patients, a pedicled medial ipsilateral femoral condyle flap was used in two patients and a defect in one patient was reconstructed using an iliac crest free flap., Results: All flaps healed completely in all patients and no fracture of the flap was detected during the study period. In one patient, a locking plate broke and was replaced by a compression plate. At the last check-up all patients were able to step on the reconstructed limb with full weight., Discussion: Although our study comprises a heterogeneous group of cases, they all have been successfully treated by a similar technique, adapted in each case specifically to the needs of the patient. A major limitation parameter of reconstruction by a free vascularised flap is the size of bone defect needed to be reconstructed. In case of a bone defect longer than 6 cm and a concomitant soft tissue disruption, a vascularised double-barrel fibula is the preferred., Conclusion: Large femoral defects can be successfully reconstructed with good long-term results using suitable free or pedicled vascularised bone flaps, especially preferring the free fibular flap., Competing Interests: Declarations Ethics approval and consent to participate The work has been carried out in accordance with The Code of Ethics of the World Medical Association (Declaration of Helsinki) and its later amendments, and in accordance with laws of the country where it was conducted. It was approved by the local institutional ethic committee (Hospital Nove Mesto na Morave Ethic Committee). The patients and their families were informed and gave written informed consent for their enrolment into the study. Consent to publication The patients and their families were informed that data will be submitted for publication. They gave their written informed consent for their personal or clinical details along with any identifying images to be published prior to the submission. Clinical trial number Not applicable. Competing interests The authors declare no competing interests., (© 2024. The Author(s).)

Background: Bone fractures are a global public health issue and a major source of significant illness and financial hardship. However, to date, there is limited research on patella, tibia or fibula, or ankle fractures (FPTFA) disease burden., Methods: Using the framework of the Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) 2019, we conducted temporal trends of disease burden, effects of sex and socio-demographic index (SDI) on age standardized prevalence rate (ASPR) and age-period-cohort model. Machine learning models were built to predict the ASPR of FPTFA in 2035., Results: In 1990 and 2019, the top three of all fractures with the highest ASPR was FPTFA. Globally, in 2019, there were 13529.45 million (95%UI: 11811.02, 15642.25), 9198.67 million (95%UI: 8518.9, 10009.91) and 77.54 million (95%UI: 34.09, 149.9) prevalent cases of fracture attributable to fall, transport injury and mechanical external force, respectively. The number of fracture prevalence and years lived with disability (YLDs), and ASPR were higher in males than in females. From 1990 to 2019, most of GBD regions showed a downward trend in average annual percent change (AAPC) of ASPR attributable to transport injuries, High-income Asia Pacific had the highest decline (AAPC= -1.81%, 95%CI: -1.89% to -1.74%). However, an upward trend in East Asia was observed (AAPC = 1.60%, 95%CI: 1.48-1.73%). With increasing SDI, the ASPR for FPTFA attributed to the fall and mechanical external force slowly increased and then turned downward, especially in high-income and high-SDI countries. The longitudinal age curve suggested that the attributed rate was increased for the three sites of lower limb fractures. The best predictive models for FPTFA caused by falls, transport injuries and mechanical external force were autoregressive integrated moving average model (ARIMA) (0,2,1), ARIMA (2,0,1) and ARIMA (0,2,2), with R 2 of 0.96, 0.78 and 0.94, respectively. By 2035, ASPR for the fall-related FPTFA will continue to rise rapidly, whereas the ASPR of the transport injury-related FPTFA will gradually decrease., Conclusion: FPTFA attributed to the falls is the dominant type and the burden and trends of the fall-related FPTFA are substantial. Fall prevention and access to treatment are crucial for reducing FPTFA burden., Competing Interests: Declarations Ethics approval and consent to participate Since this research is based on global burden of disease study 2019 database. This study is approved by the ethics committee of GBD from Institute for Health Metrics and Evaluation. Consent for publication Not applicable. Competing interests The authors declare no competing interests., (© 2024. The Author(s).)

This study will evaluate the therapeutic effect of pin distractor assisted reduction of fibular fracture on ankle fracture. A retrospective analysis was performed on 98 patients diagnosed as ankle fracture or pilon fracture. These patients were all combined with fibular fracture. Retrospective analysis included 48 patients in the experimental group (distractor assisted reduction) and 48 patients in the control group (without pin distractor). The statistical indexes include: the time spent in fracture reduction and fixation, the length of surgical incision, the operative blood loss of fracture operation, the incidence of incision skin necrosis, the incidence of fracture end splitting during reduction, the quality of fracture reduction, the time of fracture healing, infection rate, and The American Orthopedic Foot and Ankle Society score at the last follow-up. There were statistical differences between the 2 groups in the time spent in the reduction and fixation of fractures, the incidence of fracture end splitting during reduction, the quality of anatomical reduction of fractures, and the healing time of fractures. The experimental group was better than the control group. In addition, for patients with long spiral fracture, comminuted fracture, osteoporotic fracture and preoperative delay time for operation more than 2 weeks, the time spent in the reduction and fixation of fracture, the operative blood loss of fracture operation, the incidence of fracture end splitting during reduction, the quality of anatomical reduction of fracture, and the healing time of fracture in the experimental group are also better than those in the control group. The pin distractor assisted reduction of fibular fracture has the advantages of simple operation, less trauma, short operation time, less operative blood loss, and fewer complications. It is especially suitable for patients with long spiral fibular fracture, comminuted fracture, osteoporotic fracture, and long preoperative delay time in ankle fracture., Competing Interests: The authors have no conflicts of interest to disclose., (Copyright © 2024 the Author(s). Published by Wolters Kluwer Health, Inc.)

The present study shows how posterior malleolus fractures (PMFs) and distal fibular fractures were fixed using the posterolateral approach with the patient in lateral decubitus position, not previously described in the literature. This technique has been used in 60 consecutive patients (42 women and 18 men; mean age 54.7; range 21-92 years), 33 of which presented as fracture dislocations from March, 2021 to December, 2023. After PMFs fixation in lateral decubitus position, release of the sacral support allowed patients to be placed supine (without de-sterilizing the operative field), in order to proceed with medial malleolus or posteromedial fragment fixation. Fractures were classified according to the Lauge Hansen classification as SER4 (n = 50), PER4 (n = 7), SAD (n = 1), and PAB (n = 2). Fractures were classified according to Rammelt & Bartonicek, as type B (n = 40), C (n = 13), and D (n = 7). During the same period of time 14 fractures involving the PM, classified as type A, were treated with indirect fixation, whilst 6 geriatric and/or poor mobility patients with fracture dislocations were treated with retrograde hindfoot nail fixation. Follow-up period ranged from 4-36 months (mean = 14.4; SD = 8.8). Complications occurred in 5 patients (8.3%; 3 had delayed (medial) wound healing, one developed CRPS and one required implants removal and arthroscopy because of metal irritation and stiffness). No deep infections, thromboembolic events, fracture malreductions or malunions were recorded and all patients returned to the preinjury mobilization status. In conclusion, PM fracture fixation was feasible and safely performed with patients in lateral decubitus position., (Copyright © 2024 the American College of Foot and Ankle Surgeons. Published by Elsevier Inc. All rights reserved.)

Ankle fractures involving the distal fibula are common injuries. Malreductions and subsequent malunions of the distal fibula can result in worse clinical outcomes and posttraumatic arthritis. The ability to accurately evaluate and identify malreductions and malunions of the distal fibula is important. A number of different radiographic and CT measurements have been described to assess fibular length and rotation. This review highlights various radiologic measures and discusses their advantages and limitations., (© 2024. The Author(s), under exclusive licence to International Skeletal Society (ISS).)

Large posterolateral tibial fragments, known as Volkmann fractures, are common in ankle fracture-dislocations and typically require open reduction and fixation with interfragmentary screws and often buttress plates using a prone posterolateral approach. In this setting, fibula plating often necessitates dissection of the lateral window between the peroneal tendons and the skin, increasing wound-related complications. In recent years, intramedullary nailing of fibula fractures has gained popularity as a minimally invasive technique that allows load-sharing stabilization. However, this procedure has traditionally been performed in the supine position, which can pose challenges if a Volkmann-type fracture is present, requiring repositioning and losing access to the fibula through the posterolateral approach. Our objective is to describe a technique for fixing ankle fracture-dislocations with large posterolateral fragments using tibial buttress plates and fibula nails through a prone posterolateral approach without dissecting the lateral window. Additionally, we will present a case series with preliminary results., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier Ltd. All rights reserved.)

The purpose of this study was to assess whether the type and duration of screw fixation affects ankle joint functional scores and patient activity levels. We evaluated 55 patients who had undergone surgical treatment for ankle fracture with concomitant distal tibiofibular syndesmosis injury. The follow-up period ranged from 2 years to 4 years and 2 months (mean 36 months). Depending on the time of screw removal, patients were divided into 2 groups (the 8-15-week group-19 patients, and the 16-22-week group-36 patients). There were 17 patients with tricortical and 38 patients with quadricortical syndesmosis fixation. The following parameters were assessed: range of motion, rates of complications, level of pain in visual analogue scale (VAS), and function. In the quadricortical fixation group the range of plantar flexion p = .04 and adduction p = .043 were significantly lower in the operated than in the nonoperated limb. In the patients who had their syndesmotic screws removed after 16-22 weeks, the range of plantar flexion in the operated limb was significantly lower than that in the nonoperated limb. We observed no differences between the evaluated groups in terms of ankle joint mobility, VAS pain levels, functional outcomes, or complication rates. All the analyzed subgroups showed poorer ranges of some types of motion in the ankle and worse functional scale and VAS pain scores after treatment in comparison with those before the injury. We suggest removing the syndesmotic screws after 8-15 weeks, due to the possibility of earlier rehabilitation, faster return to work and physical activity and less burden on the health care system. Tricortical or quadricortical syndesmosis fixation is at the surgeon's discretion., (Copyright © 2024 the American College of Foot and Ankle Surgeons. Published by Elsevier Inc. All rights reserved.)

Objective: Fibular length is important for ankle stability. Failure to adequately restore and stabilize fibula length may result in malunion, hindering postoperative functional exercises and recovery of ankle function. However, there is no unified and effective reduction method for fibular shortening in Maisonneuve fractures. In this study, we introduce the biplane reduction as an effective surgical technique for restoring the length of the fibula in Maisonneuve fractures., Methods: This retrospective study enrolled 12 patients preoperatively diagnosed with Maisonneuve fractures between June 2019 and June 2022. All patients underwent our biplane reduction technique to restore the length of their fibula. Operation time, hospital stay, complications, FTA (the angle between the fibular tip and the superior articular surface of the talus), visual analog pain score, and the American Orthopaedic Foot and Ankle Society ankle-hindfoot score were recorded. An independent sample t-test was used for component comparisons, and a paired sample t-test or one-way analysis of variance was used for intra-group comparisons., Results: No patient was lost to follow-up and no obvious postoperative complications were observed. After operation, FTA recovered from 37.52 ± 0.37 ° to 40.42 ± 0.43 °, which was significantly improved compared with that before operation (p < 0.01). At the last follow-up, both the VAS and AOFAS scores showed significant improvement compared to pre-surgery scores., Conclusions: The reduction technique proposed in this study to restore the length of the fibula in Maisonneuve fractures is simple and effective, does not require special equipment, and has the advantage of directly examining the reduction condition., (© 2024 The Author(s). Orthopaedic Surgery published by Tianjin Hospital and John Wiley & Sons Australia, Ltd.)

We present a case of a man in his 40s with a proximal tibiofibular joint dislocation, anterior cruciate ligament (ACL) tear and posterolateral corner (PLC) injury sustained after a cycling accident. Physical examination and MRI confirmed the diagnosis. He was treated with reconstruction of the ACL, PLC and proximal tibiofibular joint. Postoperative treatment included physical therapy to improve knee range of motion and full weight-bearing after 6 weeks. He was able to return to full activities including completing a marathon after 1 year. Identifying proximal tibiofibular joint instability is essential in patients with multiligamentous knee injury as it is often missed. The use of a single tunnel for PLC and proximal tibiofibular joint reconstruction can reduce risk of tunnel convergence., Competing Interests: Competing interests: None declared., (© BMJ Publishing Group Limited 2024. No commercial re-use. See rights and permissions. Published by BMJ.)

Objective: The effectiveness and safety of fibular intramedullary nail fixation (FINF) compared to plate fixation (PF) in treating ankle fractures among adults remains unclear. Therefore, we conducted a meta-analysis to assess the efficacy and safety of FINF versus PF, aiming to provide orthopedic surgeons with valuable insights when choosing between the two internal fixation methods for patient treatment., Methods: PubMed, EMBASE, and SCOPUS were systematically searched for articles comparing FINF and PF in ankle fractures among adults. Functional outcomes, complications, and bony union were compared between the implants., Results: A total of seven studies were included in the study, involving 586 patients. The results revealed no statistically significant differences in functional outcomes between two groups at 3, 6, and 12 months postoperatively. The outcomes favoring FINF comprised a lower infection rate (RR = 0.23, 95%CI, 0.11 to 0.47, P < 0.0001). Conversely, the PF group exhibited a superior performance in terms of hardware failure rate (RR = 2.05, 95%CI, 1.16 to 3.60, P = 0.01). A statistically significant difference was observed in the results of hardware failure rate in the subgroup of studies conducted in Europe (RR = 2.74, 95%CI, 1.45 to 5.18, P = 0.002). Comparable findings were also noted in a subgroup of older adults (RR = 4.25, 95%CI, 1.57 to 11.50, P = 0.004)., Conclusion: This systematic review suggests that FINF exhibits comparable effectiveness in the management of ankle fractures among adults, as compared to PF. Consequently, it is imperative to further delineate the surgical indications for both FINF and PF with precision to mitigate the risk of complications. Nevertheless, larger sample sizes and multi-center RCTs are imperative to corroborate this conclusion in the future., (© 2024. The Author(s).)

Ankle fracture fixation using intramedullary fibular (IMF) nails has been shown to allow for earlier weightbearing, reduced wound complications, better union rates, and the absence of prominent hardware, compared to plates/screw (PS) constructs. The purpose of present retrospective cohort study was to compare outcomes of patients who underwent ankle fracture fixation using an IMF nail versus PS. Demographic, clinical, and radiographic data were recorded for patients who underwent ankle fracture fixation between May 2020 and May 2022, and who were at least 1 year postoperative. Toe-touch weightbearing was permitted immediately after surgery, protected weightbearing (PWB) at postoperative week 2, and weightbearing as tolerated in a brace at week 6. Radiographs were assessed preoperatively, and at 2, 6, 12, 24, and 48 weeks postoperative. Sixty-one ankle fractures (30 IMF, 31 PS) with a mean follow up of 14.7 and 18 (range, 12 to 23) months were included. Overall, the IMF nail cohort had less pain, faster time to union (11.4 vs 13.2 weeks), and less complications (23% vs 45%), reoperations (10% vs 16%), and surgical failures (9% vs 9.7%), compared to the PS cohort. The differences were not statistically significant. The PS cohort had a higher rate of symptomatic hardware irritation (p =< .001). Tobacco use adversely effected direct osseous healing (p < .001) and increased postoperative complications (p = .050). The present study lends credence to the previously reported advantages of IMF nailing over PS fixation for ankle fractures. Ankle fracture fixation using a fourth generation, IMF nail is a viable alternative to traditional PS fixation., (Copyright © 2024. Published by Elsevier Inc.)

Background: Lower extremity bone stress injuries (BSIs) are common among athletes who participate in high-impact activities. Conventional imaging is limited in assessing healing of BSIs., Hypothesis: Serial ultrasonography (US) can identify changes in appearance of lower extremity BSIs over time that can be correlated with symptoms and return to exercise/sport., Study Design: Cohort observational study., Level of Evidence: Level 3., Methods: Adults 18 to 50 years old with a recent exercise-associated BSI of distal tibia/fibula or metatarsals diagnosed by magnetic resonance imaging (MRI) were enrolled. US was performed every 2 weeks for 12 weeks. The sonographic appearance (soft tissue edema, periosteal reaction, hyperemia on power Doppler, callus) was correlated with the numerical rating scale (NRS) for pain and ability to return to sport/exercise., Results: A total of 30 patients were enrolled (mean age, 35.3 ± 7.7 years; 21 [70.0%] female). The tibia was most frequently affected (n = 15, 50.0%), followed by metatarsals (n = 14, 46.7%) and fibula (n = 1, 3.3%). At week 4, 25 of 30 (83.3%) had at least 1 US finding associated with the BSI. The degree of hyperemia was correlated with NRS at weeks 4 and 6 (Spearman correlations [ρ] 0.45 [0.09, 0.69] and 0.42 [0.07, 0.67], respectively), as well as return to sport/exercise at week 6 (ρ -0.45 [-0.68, -0.09]). US soft tissue edema was also correlated with NRS at week 6 (ρ 0.38 [0.02, 0.65])., Conclusion: Serial US of lower extremity BSIs can provide objective measures of healing. US findings were correlated with clinical outcomes at multiple timepoints., Clinical Relevance: US may have advantages over conventional imaging for monitoring healing of lower extremity BSIs. Further research is needed to better understand the prognostic value of these sonographic indicators of BSI healing and role in assessing readiness for return to sport/exercise., Competing Interests: The authors report no potential conflicts of interest in the development or publication of this article.

While infrequently reported, isolated injuries to the proximal tibiofibular (TF) joint primarily occur in young, athletic patients participating in sporting activities requiring explosive, high-impact movements, increasing the risk for potential twisting injuries, especially across a hyperflexed knee. The proximal TF joint is stabilized by bony, muscular and ligamentous structures, including both the anterior and posterior proximal TF complexes, with the anterior complex providing more robust stability. Proximal TF injuries frequently involve anterior and lateral displacement of the proximal fibula relative to its native articulation with the tibia. Proper diagnosis is dependent on careful and meticulous history and physical examination, as missed injuries are common, leading to the potential for continued pain, weakness and disability, especially in athletic patients. While spontaneous joint reduction has been reported, injuries may require formal closed reduction, with irreducible and chronic injuries requiring open reduction and stabilization, with recent investigations reporting satisfactory outcomes following anatomic reconstruction of the proximal TF ligament., Competing Interests: None declared., (Thieme. All rights reserved.)

Introduction/Purpose: Ankle fractures are one of the most common fractures encountered in orthopedics. The Maisonneuve fracture pattern is described as a pronation, external rotation injury involving the medial ankle structures, the syndesmosis, and the proximal third of the fibula. However, the actual distance from the proximal fibula has not been defined in what distinguishes a Maisonneuve fracture. With Weber C fractures, most surgeons tend to provide fixation to the fibula and reassess the syndesmosis afterwards. When dealing with the proximal fibula "Maisonneuve" fracture pattern, most surgeons would tend to ignore the fibula fracture and focus on syndesmotic reduction. Orthopaedic Trauma Association and American Orthopaedic Foot & Ankle Society provided their opinion via survey in treating increasing proximity of fibula fractures associated with unstable ankle fracture patterns. Methods: A survey was provided to eight OTA and AOFAS orthopedic surgeons. A powerpoint was provided to the surgeons that contained non-weightbearing injury films of eighteen patients. A questionnaire was provided giving two answer choices, address the fibular or syndesmosis primarily. The eighteen ankle fractures were selected based on increasing proximity of the fibula fracture, which ranged from 4.5cm to 32.3cm. The ankle fractures were grouped into four categories to include the Maisonneuve variant based on distance. These fracture radiographs were randomized in order to not influence the surgeon's opinion during the study. The four groups were as follows: 1. 4.5cm - 7.4cm to include six ankle fracture radiographs 2. 8cm - 10.4cm to include four ankle fracture radiographs 3. 14.6cm to 23.3cm to include five ankle fracture radiographs 4. 30.7cm to 32.3 cm to include three Maisonneuve variant ankle fracture radiographs Results: Regarding section 1, the majority of surgeons responded with open reduction, internal fixation of the fibula as their initial reduction. Section 2, the responses remained consistent with a majority of surgeons choosing to address fibular fixation followed by syndesmotic evaluation. The total number of responses in this section scored 43 answer A selections to 5 answer B selections. Section 3 (14.6-23.3cm) provided the most variability in the responses provided. With 60 possible answer choices, the polled surgeons responded with answer choice A seventeen times and answer choice B 43 times. Section 4 (30.7-32.2cm) or the Maisonneuve produced a steady response of answer choice B. Syndesmotic reduction was performed 34 times compared to only two fibular fixation choices - or answer choice A. Conclusion: The purpose of this study was to evaluate expert opinion on differing treatment as the proximity of the fibular fracture increased in connection with an unstable ankle fracture pattern. General consensus under 10,4cm was to address fibular fixation. However, once the fibular fracture exceeded 14cm, significant variability was noted. These results prove that further biomechanical studies are needed to determine the effect fibular stability in increasing proximity has on the syndesmosis. [ABSTRACT FROM AUTHOR]