patellar instability
Conditions
Interventions
Experimental group: MPFL non-anatomical reconstruction group:isolated MPFL reconstruction
Control group: MPFL anatomical reconstruction group:isolated MPFL reconstruction
Sponsors
Taizhou Hospital of Zhejiang Province
Eligibility
Sex/Gender
All
Age
8 Years to 18 Years
Inclusion criteria
Inclusion criteria: 1. Recurrent lateral patellar dislocation with a tibial tuberosity-trochlear groove distance (TT-TG) of less than 20mm, positive apprehension test occurring after knee flexion to 30°; 2. Type A and B trochlear dysplasia according to the Dejour classification; 3. Age<=18 years and skeletally immature; 4. Signed informed consent provided.
Exclusion criteria
Exclusion criteria: 1. Skeletally mature patients were excluded. 2. Previous ipsilateral knee surgery, concomitant procedures (except for lateral retinaculum release), multi-ligament knee injuries. 3. Congenital or acute patellofemoral instability. 4. TT-TG=20mm. 5. Trochlear dysplasia classified as types C and D according to the Dejour classification; 6. Excessive femoral anteversion (> 30 degrees) and/or excessive tibial torsion (> 40 degrees); 7. Patients who require bony correctional procedures to restore alignment; 8. Presence of osteochondral lesions requiring surgical intervention or secondary arthritic changes on MRI/CT;
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Kujala score ;Lysholm score; | — |
Secondary
| Measure | Time frame |
|---|---|
| Tegner Activity Score; | — |
Countries
China
Contacts
Public ContactGuoyin Zhang
Taizhou Hospital of Zhejiang Province
Outcome results
None listed