title: Reconstruction of the medial patellofemoral ligament for the treatment of habitual or recurrent dislocation of the patella in children.
abstract: We investigated the clinical outcome of a reconstructive procedure of the medial patellofemoral ligament for the treatment of habitual or recurrent dislocation of the patella in four children (6 knees), with a minimum follow-up of four years. The technique involves transfer of the tendon of semitendinosus to the patella using the posterior one-third of the femoral insertion of the medial collateral ligament as a pulley. There was no recurrence of dislocation after surgery. The mean Kujala score at follow-up was 96.3 points. Radiological assessment showed that the congruence angle, the tilt angle and the lateral shift radio were restored to normal. The lateral and medial stress shift ratios and the Insall-Salvati ratio remained abnormal. We conclude that this technique can be recommended for the treatment of habitual or recurrent patellar dislocation in children, although hypermobility and patella alta are not fully corrected.
authors.affiliation: Department of Orthopaedic Surgery, Graduate School of Biomedical Sciences, Hiroshima University, Hiroshima, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Deie
authors.forename: M
authors.initials: M
authors.lastname: Ochi
authors.forename: Y
authors.initials: Y
authors.lastname: Sumen
authors.forename: M
authors.initials: M
authors.lastname: Yasumoto
authors.forename: K
authors.initials: K
authors.lastname: Kobayashi
authors.forename: H
authors.initials: H
authors.lastname: Kimura
mesh_terms: D002648:Child; D005260:Female; D005269:Femur / Q000000981:diagnostic imaging; D006801:Humans; D008023:Ligaments, Articular / Q000000981:diagnostic imaging / Q000601:surgery*; D008297:Male; D010329:Patella / Q000000981:diagnostic imaging; D031222:Patellar Dislocation / Q000000981:diagnostic imaging / Q000601:surgery*; D011859:Radiography; D016059:Range of Motion, Articular; D012008:Recurrence; D012189:Retrospective Studies; D016896:Treatment Outcome