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Background: This study aims to determine the efficacy of both tranexamic acid (TXA) and tourniquet on the tibial cement mantle thickness in total knee arthroplasty (TKA). Methods: We retrospectively reviewed the recorded data of patients with primary end-stage knee osteoarthritis who underwent TKA procedure during 2014–2016 at a single institution to evaluate the tibial cement mantle. Patients were categorized in two groups based on the use of tourniquet (groups 1 and 2). In addition, these groups were categorized into two different subgroups based on the use of TXA in groups 1 and 2 (group 1-A, B and group 2-A, B). Four zones at the tibial baseplate on the anteroposterior view and two zones on the lateral view were measured at the 4–6-week postoperative visit. Results: A total of 28 patients (30 knees) were operated using tourniquet and TXA (group 1-A), 29 (30 knees) using tourniquet without TXA (group 1-B), 24 (28 knees) using TXA without tourniquet (group 2-A), and 38 (42 knees) without using TXA and tourniquet (group 2-B). Although a significant difference was found in the cumulative cement mantle penetration on postoperative X-rays between groups 1 and 2, no significant differences were found between groups A and B in both groups. Conclusions: This study reports that tourniquet use in TKA increased cement mantle penetration of the tibial component in primary TKA. The main strength of this study was that the TXA use alone exhibited no significant effect on the cement thickness. [ABSTRACT FROM AUTHOR]

Objective: This study aimed to analyze the prognostic factors affecting the survival of patients over 90 years with intertrochanteric fractures treated with proximal femoral nailing. Materials: Records of 53 patients over 90 years old treated in our clinic between 2009 and 2018 for intertrochanteric fractures with proximal femoral nailing were retrospectively reviewed. Neutrophil/lymphocyte ratio (NLR) and platelet/lymphocyte ratio (PLR) were analyzed for validity as prognostic factors. Kaplan–Meier test was used to estimate overall survival. A multivariate Cox algorithm was used to determine independent factors associated with survival. The minimum follow-up duration was one year. Results: The average age at the time of surgery was 92.8 years. There were 39 women and 14 men. The right femur was involved in 29 (54.7%) patients and the left in 24 (45.3%) patients. At the time of this study, 32 (60.3%) patients were deceased. There were 21 (39.7%) surviving patients with a mean survival of 41.2 months (range 12–113). Survival rates at first month, 6 months and 1 year after surgery were 90.6%, 88.6% and 86.7%, respectively. The mean survival after surgery was 29.6 (2 days–95 months) months for deceased patients. Among all the parameters, ASA score and delay to surgery were independently associated with worse overall survival. Conclusion: An ASA score of 4 increased mortality by a factor of 26 and delay to surgery increased mortality by a factor of 1.3. Both were prognostic factors influencing overall survival. [ABSTRACT FROM AUTHOR]

Background: Parkinson's disease is a neurodegenerative condition causing coordination loss in musculoskeletal system. Many studies suggest that total knee arthroplasty in patients with Parkinson's disease has unfavorable treatment results and high complication rates. Our hypothesis was that total knee arthroplasty might be an effective procedure in patients with Parkinson's disease.Methods: Parkinson's disease patients who underwent total knee arthroplasty between 2006 and 2018 were retrospectively evaluated. Patients who had Parkinson's disease diagnosis before surgery and who had a minimum follow-up duration of 12 months were included. Secondary knee osteoarthritis patients were excluded. A matched control group was randomly formed. Outcome measures were evaluated by preoperative and postoperative Knee Society Score and joint range of motion values. Comparison was made by means of increase in Knee Society Score and range of motion values. Study group patients were reviewed according to Columbia Classification System to determine disease severity. Stages I-II were accepted as "low-grade" and III-IV-V as "high-grade" disease. Another comparison was made between "low-grade" and "high-grade" patients. Patient who showed disease progression after surgery were also compared to patients without progression.Results: There were 13 patients in both groups. In study group, mean preoperative and postoperative Knee Society Score values were 45.4 (±16.8) and 85.6 (±7.60); range of motion values were 93.9° (±17.0°) and 99.5° (±9.37°) respectively with a mean follow-up of 64.5 (±44.7) months. In control group, mean preoperative and postoperative Knee Society Score values were 38.8 (±11.5) and 86.1 (±10.0); range of motion values were 100.4° (±14.6°) and 109.2° (±10.2°) respectively with a mean follow-up of 51.8 (±13.6) months. No significant difference was observed between 2 groups (p > 0.05). Mean preoperative KSS and ROM values were significantly lower in high-grade patients (30.0 (±17.0) and 78.8° (±11.8°) respectively) compared to low-grade patients (52.2 (±11.9) and 100.6° (±14.7°) respectively) (p < 0.05). However, mean increase in KSS and ROM values were significantly higher for high-grade patients (p < 0.05). Mean increase in Knee Society Score and range of motion was 32.4 (±10.9) and 1.00° (±9.46°) respectively in patients with progression, 45.4 (±16.8) and 8.63° (±8.00°) in patients without progression (p > 0.05).Conclusion: Total knee arthroplasty is a successful treatment of knee osteoarthritis in Parkionson's disease patients with similar outcomes compared to general population despite disease severity and progression. [ABSTRACT FROM AUTHOR]

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