Combined arthroscopic deepening trochleoplasty and reconstruction of the medial patellofemoral ligament for patients with recurrent patella dislocation and trochlear dysplasia

• Published in: Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA sports traumatology, arthroscopy : official journal of the ESSKA, 2014-10, Vol.22 (10), p.2484-2490
• Main Authors: Blønd, Lars, Haugegaard, Micael
• Format: Article
• Language: English
• Subjects: Adolescent; Adult; Arthroplasty - methods; Arthroscopy - methods; Cartilage; Child; Female; Follow-Up Studies; Humans; Knee; Knee Joint - surgery; Ligaments; Ligaments, Articular - surgery; Male; Medicine; Medicine & Public Health; Orthopedics; Pain; Patellar Dislocation - surgery; Prospective Studies; Range of Motion, Articular; Reconstructive Surgical Procedures - methods; Surgery; Young Adult
• ISSN: 0942-2056; 1433-7347
• DOI: 10.1007/s00167-013-2422-2

Purpose Prospectively, a consecutive group of patients troubled by recurrent patella dislocation and trochlear dysplasia has been followed after a combined arthroscopic deepening trochleoplasty and reconstruction of the medial patellofemoral ligament. The purpose of this follow-up study is to report the clinical results. Methods Indications for combined arthroscopic deepening trochleoplasty and reconstruction of the medial patellofemoral ligament were two or more patellar dislocations with a persistent apprehension sign above 20° of flexion and trochlear dysplasia grade B or more. Prospectively, the Tegner, Kujala and KOOS scores were recorded. Thirty-one consecutive patients (37 knees), 21 women and 10 men, with a median age of 19 (12–39) underwent the procedure. Results Results were obtained for 29 knees with a minimum of 12-month follow-up (average 29 months; range 12–57). No complications, redislocations or arthrofibrosis have been recorded. Five patients needed further surgery. The median pre- and postoperative scores (range) are as follows: Kujala 64 (12–90) to 95 (47–100); Tegner 4 (1–6) to 6 (4–9); KOOS score pain 86–94; symptoms 82–86; ADL 91–99; sport 40–86; QDL 25–81. No significant correlation was found with respect to the results and recorded parameters. Significant improvement for all of the scores was observed ( p