ArticleJournal of experimental orthopaedics2026
Percutaneous compression screw fixation for hinge fractures in distal femoral osteotomy does not compromise radiographic or clinical outcomes: A retrospective case-control study.
Article in Journal of experimental orthopaedics, 2026. 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
Purpose: The purpose of this study was to compare radiographic and clinical outcomes between patients undergoing distal femoral osteotomy (DFO) with intraoperative hinge fracture treated with percutaneous compression screw fixation and those without hinge fracture. Methods: This retrospective case-control study included patients undergoing DFO for coronal plane deformity correction between January 2019 and May 2023, with minimum 2-year follow-up. Patients sustaining a hinge fracture treated with percutaneous compression screw fixation constituted the case group; patients without hinge fracture served as unmatched controls. Radiographic parameters-including coronal correction (ΔHKA: change in hip-knee-ankle angle), alignment maintenance and radiographic union-and patient-reported outcome measures (Knee Injury and Osteoarthritis Outcome Score, Lysholm score, Simple Knee Value, UCLA Activity Score, NRS pain score) were assessed pre and postoperatively. Statistical significance was set at Results: Of 130 patients screened, 67 were included: 21 in the hinge fracture group and 46 controls. Mean age was 41.8 ± 13.9 years, 75% were male and mean BMI was 26.8 ± 4.5 kg/m Conclusion: DFO-associated hinge fractures treated with percutaneous compression screw fixation were not associated with inferior radiographic or clinical outcomes compared with patients without hinge fracture. Progressive weight-bearing from 3 weeks was safe, supporting this technique as a reliable intraoperative management strategy. Level of Evidence: Level III, retrospective comparative cohort.
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