ArticleChinese journal of traumatology = Zhonghua chuang shang za zhi2025
Novel approach of plate assisted buttressing in Hoffa fracture.
Article in Chinese journal of traumatology = Zhonghua chuang shang za zhi, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeHoffa fracture is a femoral condyle fracture in the coronal plane. The lateral condyle is more commonly involved. The diagnosis is often difficult to detect with routine radiographs. Conservative management in this type of fracture resulted in nonunion, malunion, and other complications, such as stiff knee. Therefore, surgical management is mandatory in displaced fractures. Previous studies suggest only application of cancellous screw fixation, but these are not enough to counter vertical shear stress. Therefore, this study will evaluate the clinical outcomes of open reduction and internal fixation of Letenneur type I Hoffa fracture using cancellous screws with posterior buttressing plate.
methodThis was a prospective cohort study conducted from March 2017 to July 2022 in orthopaedics department of tertiary care center after approval of institutional ethical committee. The study included 36 patients with Letenneur type I fractures treated by open reduction and internal fixation using posterior buttress plate and cancellous screws. Radiographs and clinical outcomes, range of movement (ROM), bone union, and knee society score (KSS) of patients were assessed at the end of 4 and 12 months in the follow-ups. All statistical analysis was done using Epi info version 7.2.1.0.
resultsIn the 36 patients with Letenneur type I fracture, the majority belong to younger age group between 25 and 54 years with 22 males and 14 females. The modes of injury were road traffic accidents in 25 patients and fall from height in 11 patients. The right knee was involved in 21 cases and left was involved in 15 cases. Lateral condyle involvement was seen in 27 cases and medial condyle in 9 cases. All 36 patients with Letenneur type I Hoffa fracture were evaluated 4 months after surgical intervention. The notable improvements were observed in terms of ROM 120.4° ± 5.0° and KSS 85.0 ± 4.2. At the 12-month follow-up, considerably better outcomes were maintained regarding ROM 128.1° ± 5.2° and KSS 89.3 ± 4.8 with p < 0.05 which was statistically significant. At the final follow-up, all patients had routine fracture healing with a union time of (3.2 ± 3.4) months.
conclusionsFixation of Letenneur type I Hoffa fracture with cancellous screws and posterior buttress plate is effective, reliable and capable of providing adequate stability. Buttress plate assisted fixation is a valuable enhancement of the conventional technique of lag screw fixation of Hoffa fractures.
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