title: The results of adductor magnus tenodesis in adolescents with recurrent patellar dislocation.
abstract: Recurrent dislocation of the patella is a common orthopaedic problem which occurs in about 44% of cases after first-time dislocation. In most cases of first-time patellar dislocation, the medial patellofemoral ligament (MPFL) becomes damaged. Between 2010 and 2012, 33 children and adolescents (39 knees) with recurrent patellar dislocation were treated with MPFL reconstruction using the adductor magnus tendon. The aim of our study is to assess the effectiveness of this surgical procedure. The outcomes were evaluated functionally (Lysholm knee scale, the Kujala Anterior Knee Pain Scale, and isokinetic examination) and radiographically (Caton index, sulcus angle, congruence angle, and patellofemoral angle). Four patients demonstrated redislocation with MPFL graft failure, despite the fact that patellar tracking was found to be normal before the injury, and the patients had not reported any symptoms. Statistically significant improvements in Lysholm and Kujala scales, in patellofemoral and congruence angle, were seen (P < 0.001). A statistically significant improvement in the peak torque of the quadriceps muscle and flexor was observed for 60°/sec and 180°/sec angular velocities (P = 0.01). Our results confirm the efficacy of MPFL reconstruction using the adductor magnus tendon in children and adolescents with recurrent patellar dislocation.
authors.affiliation: Clinic of Orthopaedics and Traumatology, Polish Mother's Memorial Hospital Research Institute, Rzgowska 281/289, 93-338 Lodz, Poland.
authors.forename: Krzysztof
authors.initials: K
authors.lastname: Malecki
authors.affiliation: Department of Arthroscopy, Minimally Invasive Surgery and Sports Traumatology, Medical University of Lodz, Żeromskiego 113, 90-549 Lodz, Poland.
authors.forename: Jaroslaw
authors.initials: J
authors.lastname: Fabis
authors.affiliation: Clinic of Orthopaedics and Traumatology, Polish Mother's Memorial Hospital Research Institute, Rzgowska 281/289, 93-338 Lodz, Poland.
authors.forename: Pawel
authors.initials: P
authors.lastname: Flont
authors.affiliation: Clinic of Orthopaedics and Traumatology, Polish Mother's Memorial Hospital Research Institute, Rzgowska 281/289, 93-338 Lodz, Poland.
authors.forename: Kryspin Ryszard
authors.initials: KR
authors.lastname: Niedzielski
mesh_terms: D000293:Adolescent; D002648:Child; D005260:Female; D006801:Humans; D007719:Knee Joint / Q000601:surgery; D008297:Male; D018482:Muscle, Skeletal / Q000601:surgery; D010329:Patella / Q000601:surgery; D031222:Patellar Dislocation / Q000601:surgery*; D019651:Plastic Surgery Procedures / Q000379:methods; D013710:Tendons / Q000601:surgery*; D053656:Tenodesis / Q000379:methods