Meniscectomy, the commonest performed in orthopaedic surgery, and lateral release and a modified Hauser's operation were used for treatment of reccurrent dislocation of patella. 17 patients (18 knees) of meniscal injury and 8 patients (9 knees) of reccurrent dislocation of patella were treated by operation. Those were traced for the purpose of long-term follow-up. Many of excised menisci were lateral discoid type and young patients with lateral discoid type showed good results.
In reccurrent dislocation of patella, the patients with growth plates were treated by lateral release and those who have no growth plate were treated by Hauser's procedure. The results treated by Hauser's procedure were good and the group treated by lateral release showed reccurrence of dislocation of patella.