Distal femoral osteotomy for the treatment of chronic patellofemoral instability improves gait patterns

• DOI: 10.1007/s00402-025-05788-x
• Publication Date: 2025-03-08T09:28:26Z
• Authors: Peter Rab; Romed P. Vieider; Lorenz Fritsch; Matthias Cotic; Florian B. Imhoff; Sebastian Siebenlist; Andrea Achtnich; Maximilian Hinz
• Keywords: Concomitant

Abstract Purpose The purpose of this study was to evaluate pre- postoperative changes in clinical and functional outcomes as well gait patterns patients who underwent surgery for chronic patellofemoral instability (PFI). Methods Patients the treatment recurrent PFI according an individual risk factor analysis were included. Pre- minimum 12 months postoperatively, patient-reported outcome measures (PROM; Kujala score, Lysholm Tegner Activity Scale [TAS] Visual Analog pain) (dynamic Q-angle) function valgus dynamic Trendelenburg during single-leg squat) via videography evaluated. Subgroup performed based on whether or not concomitant distal femoral osteotomy (DFO) due coronal and/or torsional malalignment. Results Twenty-three included (follow-up: 12.5 [12.1–13.0] months), which 60.9% a DFO. All PROM improved significantly ( p < 0.05). Overall, Q-angle = 0.016) 0.041) observed less frequently postoperatively when compared preoperatively. showed that only group DFO had significant improvement 0.041). Dynamic did improve > Regression presence associated with worse score 0.042) TAS 0.049). Conclusion Patient-individualized testing, especially also sporting ability. Level evidence III.