. The data were collected from patients using a questionnaire with multiple variables. Results: we obtained 342 patients with 346 open fractures. The majority of the patients were male (86.84%), with an average age of 30.41 years and average hospitalization time of 6.87 days. The main professions were students (21.92%), followed by motorcycle couriers (11.40%). The accidents occurred on public roads (57.30%), affecting mainly the leg bones (37.86%) and classified as level III (45.36%). Associated injuries occurred in 27.19%, with 11.11% complications. There was evidence of alcohol consumption (12.86%) and drug use (1.46%) in the six hours prior to the trauma. Conclusion: The patients were mainly young, male, with incomplete school education. The main cause of the traumas was road accidents, occurring at night (between 7 pm and midnight), with leg bone injuries classified as level III. The associated injuries and early complications were predominantly related to injuries of greater severity.

Objective: To retrospectively survey the most frequent complications from medial opening wedge high-tibial osteotomy. This procedure is becoming increasingly important in treating knee arthrosis, as one of the options for young and active patients. Despite satisfactory results and its benefits, it is not a complication-free procedure. Methods: All cases of medial opening wedge high-tibial osteotomy above the tibial tubercle with fixation using a Puddu plate that were performed at the Celso Pierro Hospital and Maternity Hospital, Pontifical Catholic University of Campinas (PUC-Campinas) and the Wilson Mello Institute, Campinas, between October 1, 1987, and October 30, 2008, were evaluated retrospectively. Patients with less than 12 months of follow-up or incomplete medical files, and those who underwent bilateral osteotomy, were excluded. Results: Out of the 67 cases evaluated, 55 were males and 12 were females, with a mean age of 49.5 years. The mean wedge size was 10.15 mm and the most common complications were moderate to severe pain (13.04%), stiffness (6.52%), material breakage (4.4%), intraoperative fracture of the lateral cortical bone (4.4%) and infection (4.4%). It was observed that patients with delayed consolidation of the osteotomy had a greater chance of presenting complications (p < 0.05). Conclusion: Complications from medial wedge osteotomy are more frequent when associated with delayed consolidation.

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