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  • Title: Medial and lateral retinaculum plasty for congenital patellar dislocation due to small patella syndrome.
    Author: Wang CH, Shu L, Ma LF, Zhou JW, Ji G, Wang F, Wang J.
    Journal: Orthopedics; 2013 Nov; 36(11):e1418-23. PubMed ID: 24200447.
    Abstract:
    The objective of this study was to explore the clinical effect of medial and lateral retinaculum plasty for congenital patellar dislocation due to small patella syndrome. Twelve patients with congenital patellar dislocation due to small patella syndrome treated at the authors' hospital between January 2005 and February 2010 were enrolled in the study. The study group comprised 4 men (4 knees) and 8 women (8 knees) with an average age of 10.58±6.91 years. All patients underwent medial and lateral retinaculum plasty. Clinical evaluation included the number of patellar redislocations, patellar apprehension sign, Kujala score, subjective questionnaire score, and patella lateral shift and patellar tilt angle measured using a cross-sectional computed tomography scan. All patients were followed up, and the shortest follow-up time was 2 years. Kujala scores improved from 49.20±6.20 preoperatively to 80.10±5.80 postoperatively. Subjective questionnaire scores indicated that the excellent and good rate was 75%. In addition, a significant difference existed in the patellar tilt angle and patella lateral shift between pre- and postoperative results (P<.05). Medial and lateral retinaculum plasty for patients with congenital patellar dislocation due to small patella syndrome can be effective to correct the tracking of the patellofemoral joint and improve knee function.
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