Thirteen knees with patellar malalignment syndrome were operated on during the past five years. All cases were female with a mean age of 24 years (range, 12 to 29 years). Mean follow up period was two years and three months (range, four months to four years and ten months).
Only one case had proximal realignment (Insall method) performed, three cases received scopic lateral release and nine cases were treated with proximal plus distal realignment. Distal realignment was tibial tuberosity medial transplantation with 5mm ventralization.
Results were as follows:
1. All cases were excellent in the patient's subjective.
2. All cases were excellent by MacNab classification.
3. Proximal plus distal realignment was necessary for reccurent dislocation and major instability of patella.
