A Medial And Lateral Retinacular Plasty versus Medial Retinacular Plasty And Lateral Retinacular Release

Abstract

Medial-lateral retinacular plasty is a new surgical technique designed based on anatomical and biomechanical studies and the advantages of traditional proximal repositioning. To compare the complication rates and outcomes of lateral supportive ligamentoplasty and lateral supportive ligament release for lateral patellar dislocation. In a retrospective study, 71 patients (mean age, 14.40 ± 1.28 years; 45females and 26males) received either medial and lateral retinacular plasty (37 patients) or medial retinacular plasty and LR release (34 patients) between October 2013 and December 2017. The number of patellar apprehension signs, Kujala score and patellar tilt angle(PTA), patellar lateral shift(PLS), congruence angle(CA), and medial patellar glide (MPG) from computed tomography scan have been incorporated into the clinical evaluation. All patients were followed up, and the shortest follow-up time was 2 years. Patients were followed up for a mean period of 29 months (24–38 months). The mean Kujala score was significantly lower (P = 0.027) in the LR release group (82.00 points) than in the LR plasty group (86.35 points). Moreover, there was a significant difference between preoperative and postoperative outcomes for MPG. (P < 0.05). The MPG was smaller in the LR plasty group than the LR release group. In this retrospective study, medial and lateral brachioplasty can effectively correct patellofemoral joint tracking and improve knee function in patients with patellar dislocation.