Hamstring Versus Quadriceps Tendon Graft for MPFL Reconstruction

Cairo University38 enrolled

Overview

This prospective comparative study compared the clinical and radiological outcomes of medial patellofemoral ligament (MPFL) reconstruction using a hamstring tendon graft versus a quadriceps tendon graft in patients with recurrent patellar dislocation. The study included 38 patients with 40 affected knees who underwent MPFL reconstruction using either a hamstring tendon graft or a quadriceps tendon graft, according to the treating surgeon's preference. Patients were prospectively followed in two groups according to the graft used. Clinical outcomes were assessed using the Kujala, International Knee Documentation Committee (IKDC), and Tegner-Lysholm scores. Radiological assessment included patellar tilt angle and congruence angle. Postoperative complications and recurrent patellar instability were also evaluated.

Study Type

OBSERVATIONAL

Enrollment

Conditions

Recurrent Patellar Dislocation

Interventions

MPFL Reconstruction Using Hamstring Tendon GraftPROCEDURE

Medial patellofemoral ligament reconstruction was performed using an autologous semitendinosus tendon graft. The graft was fixed to the medial aspect of the patella and passed between layers 2 and 3 of the medial knee structures, followed by femoral fixation at the anatomical MPFL insertion.

Eligibility

Sex: ALLMin age: 18 YearsMax age: 40 Years

Medical Language ↔ Plain English

Inclusion Criteria: * Patients with recurrent patellar dislocation. * Age from 18 to 40 years. * Patients indicated for isolated medial patellofemoral ligament (MPFL) reconstruction. Exclusion Criteria: 1. Patients with trochlear dysplasia (Dejour B-C-D). 2. Patients with clinical evidence of mal-alignment (varus, valgus, flat foot and femoral anteversion). 3. Patients with congenital pateller dislocation. 4. Patella alta and patella baja. 5. Previous quadriceps muscles operation. 6. Patients with patellofemoral OA. 7. Patients with hypermobility syndrome. 8. Patients with associated pathology.

Outcomes

Primary Outcomes

Kujala score

Functional outcome assessed using the Kujala anterior knee pain scale. The score ranges from 0 to 100, with higher scores indicating better knee function and fewer patellofemoral symptoms.