Vincent Marot1, Vicente Sanchis-Alfonso2, Simone Perelli3, Pablo E Gelber3,4, Christian Javier Sánchez Rábago5, Gerard Ginovart6, Joan C Monllau3,7. 1. Musculoskeletal Institute, Hôpital Pierre Paul Riquet, CHU Toulouse, 1 place Baylac, 31000, Toulouse, France. marot25@hotmail.com. 2. Hospital 9 de Octubre, Valencia, Spain. 3. Institut Català de Traumatologia I Medicina de L'Esport-Hospital Universitari Dexeus, Universitat Autònoma de Barcelona, Barcelona, Spain. 4. Department of Orthopaedic Surgery, Hospital de la Sta Creu I Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain. 5. Hospital Angeles Leon, Guanajuato, Mexico. 6. Hospital Terres de l'Ebre, Tortosa, Spain. 7. Department of Orthopaedic Surgery, Hospital del Mar, Universitat Autònoma de Barcelona, Barcelona, Spain.
Abstract
PURPOSE: The primary objective was to compare the functional outcomes after an isolated MPFL reconstruction using either a quasi-anatomical technique (group A) or an anatomical MPFL reconstruction (group B). The secondary objectives were to compare the rates of redislocation, range-of-motion and subjective patellar instability (Smillie test). METHODS: A multicenter longitudinal prospective comparative study was performed. Group A had 29 patients and 28 were included in Group B. Patients with trochlear dysplasia types C and D and patients who had undergone a trochleoplasty, a distal realignment or patella distalization concurrently with MPFL reconstruction were excluded. The main evaluation criterion was the Kujala functional score. RESULTS: The mean postoperative Kujala was 90.4 (89.4 in group A and 92.1 in group B). Upon comparing the mean difference between pre- and post-operative values, no differences were detected between the two groups (n.s). CONCLUSIONS: Isolated quasi-anatomical MPFL reconstruction using a gracilis tendon autograft for recurrent patellar dislocation provides outcomes as good as the isolated anatomical MPFL reconstruction in patients with no trochlear dysplasia up to those with trochlear dysplasia type A and B at the 2-5 years follow-up. LEVEL OF EVIDENCE: Level IV.
PURPOSE: The primary objective was to compare the functional outcomes after an isolated MPFL reconstruction using either a quasi-anatomical technique (group A) or an anatomical MPFL reconstruction (group B). The secondary objectives were to compare the rates of redislocation, range-of-motion and subjective patellar instability (Smillie test). METHODS: A multicenter longitudinal prospective comparative study was performed. Group A had 29 patients and 28 were included in Group B. Patients with trochlear dysplasia types C and D and patients who had undergone a trochleoplasty, a distal realignment or patella distalization concurrently with MPFL reconstruction were excluded. The main evaluation criterion was the Kujala functional score. RESULTS: The mean postoperative Kujala was 90.4 (89.4 in group A and 92.1 in group B). Upon comparing the mean difference between pre- and post-operative values, no differences were detected between the two groups (n.s). CONCLUSIONS: Isolated quasi-anatomical MPFL reconstruction using a gracilis tendon autograft for recurrent patellar dislocation provides outcomes as good as the isolated anatomical MPFL reconstruction in patients with no trochlear dysplasia up to those with trochlear dysplasia type A and B at the 2-5 years follow-up. LEVEL OF EVIDENCE: Level IV.
Authors: Carlo Biz; Carla Stecco; Alberto Crimì; Carmelo Pirri; Michele Fosser; Caterina Fede; Chenglei Fan; Pietro Ruggieri; Raffaele De Caro Journal: Int J Environ Res Public Health Date: 2022-01-19 Impact factor: 3.390