Title : Clinical outcomes of soft-tissue stabilization combined with medial patellofemoral ligament reconstruction for recurrent patellar dislocation in children: A retrospective cohort study
Abstract:
Recurrent patellar dislocation in skeletally immature patients remains a challenging condition, frequently leading to persistent instability, pain, and functional limitations. Medial Patello Femoral Ligament (MPFL) reconstruction combined with soft-tissue stabilization has been increasingly applied to restore patellar stability while minimizing the risk of physcal injury. However, clinical evidence regarding its effectiveness in pediatric populations is still limited. This study aimed to evaluate the clinical outcomes and safety of soft-tissue stabilization combined with MPFL reconstruction for recurrent patellar dislocation in children and adolescents. A retrospective cohort study was conducted including 47 consecutive pediatric patients with recurrent patellar dislocation treated surgically at our institution. The mean age at surgery was 13.3 years. All patients underwent soft-tissue stabilization combined with MPFL reconstruction. Clinical outcomes were assessed using the kujala and lysholm scores. Postoperative redislocation, complications, and functional recovery were recorded. The mean follow-up duration was 28.6 ± 6.4 months. At final follow-up, the kujala score improved significantly from 54 preoperatively to 88 postoperatively (p < 0.001). The lysholm score increased from 61 to 91 (p < 0.001). Redislocation occurred in 2 patients (4.3%). No major complications, growth disturbance, or physcal injury were observed. Most patients returned to their pre-injury activity levels with satisfactory knee function. In conclusion, soft-tissue stabilization combined with MPFL reconstruction provides reliable patellar stability and significant functional improvement in pediatric patients with recurrent patellar dislocation. The procedure demonstrated a low recurrence rate and excellent safety profile, suggesting it is an effective surgical option for skeletally immature patients.
