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The aim of this study was to outlined the characteristics of severe trauma-induced oro-maxillofacial defects and explored the application of microsurgical reconstruction of these defects by selecting appropriate free vascularised composite tissue flaps. A retrospective analysis was performed in 11 cases with severe trauma-induced oro-maxillofacial defects from 2005 to 2018, All cases were reconstructed with free vascularised composite flaps using a supermicro- or micro-surgical and digital technology. This study consisted of 11 patients (8 men, 3 women) with a median age of 28 years, ranging 6–64 years. Patients with long-standing trauma experienced severe scars and displacements. The trauma-induced oro-maxillofacial defects ranged in size from 4.0×5.0 cm2 to 7×15 cm2. Six radial forearm flaps, three fibular osteocutaneous flaps, a lateral thoracic flap, and an anterolateral thigh flap were harvested individually. All patients were treated effectively and followed up for over two years, with a 100% survival rate of these free vascularised composite tissue flaps. No uncontrollable complications occurred, and all patients were satisfied with the postoperative shape and function. So the trauma-induced oro-maxillofacial defects display unique features, and microsurgical techniques play an important role in the reconstruction of shapes and function. In addition, some patients may need multi-stage surgeries to aesthetic refinement.

The study aimed to investigate whether the incidence rate of external auditory canal (EAC) fracture varies among different clinical types of condylar fracture. A retrospective cohort study was conducted in single hospital of China. Eligible patients diagnosed with mandibular condylar fractures were retrospectively reviewed. Among all patients with condylar fractures (318 cases and 437 sides), 45 cases and 59 sides (59/437 sides, 13.5%) were found with EAC fracture, including 17(17/38, 44.7%) sides of sagittal fracture of condyle (Type I), 21(21/59, 35.6%) sides of intracapsular condylar fracture (Type II), 8 (8/306, 2.6%) sides of condylar neck fracture (Type III), and 6 (6/34, 17.7%) sides of condylar base fracture (Type IV). Type III condylar fracture had a significant lower rate of EAC fracture than all other three types (all p

BACKGROUND The aim of this study was to explore the characteristics and correlation of maxillofacial fractures and concurrent injuries with different injury causes. METHODS In this retrospective study, data were collected from patients treated for maxillofacial fractures in 3 oral and maxillofacial surgery departments in Southeast China, from January 2010 to December 2019. The information was obtained from clinical notes and surgical records using a standardized data collection form, and some causes of injuries were confirmed by telephone follow-ups and police records. These patients were divided into 7 groups according to the etiology: bicycle accident, electric bicycle accident, motorcycle accident, automobile accident, fall at ground level, fall from a height, and assault-related accident. Statistical tests were performed using R software (version 3.1.1), and all P-values were computed based on Chi-square tests and set at 0.05. RESULTS During this 10-year retrospective study, a total of 1772 patients with definite causes were analyzed. The average age was approximately 35.04 years (9 months-94 years). All patients were treated with open reduction and rigidly internal fixation, and the average duration was approximately 6.51 days (range 0 day-50 days), that from the time of the injury to the time of treatment. Traffic accidents were identified as the main cause of maxillofacial fracture (57.62%; n = 1021 of 1772 cases). In different etiology groups, there were statistically significant differences in the distribution of age, sex, maxillofacial fracture type, and concurrent injuries (all P