The goal of this study is to compare the biomechanical stability and clinical outcomes of two treatment methods for inferior pole patellar fractures (IPPF): anchor suture with patellar cerclage and Kirschner-wire tension band combined with patellar cerclage. The study involves patients with IPPF, focusing on fracture patterns and treatment outcomes. 1. Undergo retrospective analysis of fracture patterns using fracture mapping. 2. Participate in biomechanical analysis via finite element modeling of both treatment methods. 3. Be part of a clinical comparison between two surgical treatments based on operative time, postoperative complications, and functional outcomes.
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final knee range of motion
Timeframe: 6 months to 1.5 years after surgery
incidence of secondary surgery
Timeframe: 6 months to 1.5 years after surgery
postoperative complications
Timeframe: 6 months to 1.5 years after surgery