Hybrid medial patellofemoral ligament reconstruction using the semitendinous tendon for recurrent patellar dislocation: minimum 3 years' follow-up.
OBJECTIVE
The purpose of this study was to evaluate the results of a new hybrid medial patellofemoral ligament (MPFL) reconstruction for recurrent patellar dislocation.


METHODS
Hybrid MPFL reconstruction by use of the semitendinous tendon was performed in 12 knees with recurrent patellar dislocation. The results were evaluated at a minimum follow-up of 3 years (mean, 4.2 years).


RESULTS
According to the grading system of Insall et al., the results were classified as excellent in 8 knees (66%), good in 2 (17%), and fair in 2 (17%), with none being classified as poor. The mean Kujala score was 56.3 points (range, 29 to 82) preoperatively and 96.0 points (range, 84 to 100) at follow-up. There were no patients with recurrent dislocation and subluxation. No knees had a positive apprehension sign, and there were no postoperative complications.


CONCLUSIONS
At a midterm follow-up, hybrid MPFL reconstruction by use of the semitendinous tendon for recurrent patellar dislocation should be considered as an effective operation for cases without severe predisposing factors.


METHODS
Level IV, therapeutic case series, no or historical control group.
Nomura
Eiki
E
Department of Orthopaedic Surgery, Kawasaki Municipal Hospital, Shinkawa-dori, Kawasaki, Japan. edk-nomura@spn1.speednet.ne.jp
Inoue
Motoyasu
M
D000293:Adolescent; D000328:Adult; D001182:Arthroscopy / Q000379:methods; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007719:Knee Joint / Q000503:physiopathology / Q000601:surgery*; D008023:Ligaments, Articular / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D031222:Patellar Dislocation / Q000601:surgery*; D016059:Range of Motion, Articular; D019651:Plastic Surgery Procedures / Q000379:methods; D012008:Recurrence; D013710:Tendons / Q000601:surgery; D016896:Treatment Outcome