Ai-Bing Huang1, Hai-Jun Wang1, Jia-Kuo Yu2, Bo Yang1, Dong Ma1, Ji-Ying Zhang1. 1. Institute of Sports Medicine, Peking University Third Hospital, No. 49, North Garden Road, Haidian District, Beijing, 100191, China. 2. Institute of Sports Medicine, Peking University Third Hospital, No. 49, North Garden Road, Haidian District, Beijing, 100191, China. yujiakuo@126.com.
Abstract
PURPOSE: Patellofemoral syndrome is still a common complication after total knee arthroplasty (TKA). However, the effects of specific surgical approaches on patellar tracking and alignment remain incompletely understood. In this study, we compared patellar alignment in patients who underwent TKA via three different techniques. METHODS: A total of 96 patients who completed a minimum follow-up of five years were involved in three groups: 30 patients were treated with the traditional medial parapatellar approach (MPP group), 35 patients were treated with the mini-medial parapatellar approach (MMP group) and 31 were treated with a quadriceps-sparing approach (QS group). Radiographic data for patellar alignment and clinical results were compared. RESULTS: Patellar tilt and patellar displacement at the final follow-up evaluation differed significantly among the three groups [P < 0.01, analysis of variance (ANOVA)]. The MMP and QS groups exhibited more proper patellar alignment than the MPP group. The clinical results did not differ significantly among the groups (P > 0.05, ANOVA). In addition, there were no correlations between postoperative patellar alignment and clinical scores. CONCLUSIONS: The results of this study indicate that TKA performed using minimally invasive approaches yields superior patellar alignment compared to the traditional MPP approach.
PURPOSE:Patellofemoral syndrome is still a common complication after total knee arthroplasty (TKA). However, the effects of specific surgical approaches on patellar tracking and alignment remain incompletely understood. In this study, we compared patellar alignment in patients who underwent TKA via three different techniques. METHODS: A total of 96 patients who completed a minimum follow-up of five years were involved in three groups: 30 patients were treated with the traditional medial parapatellar approach (MPP group), 35 patients were treated with the mini-medial parapatellar approach (MMP group) and 31 were treated with a quadriceps-sparing approach (QS group). Radiographic data for patellar alignment and clinical results were compared. RESULTS: Patellar tilt and patellar displacement at the final follow-up evaluation differed significantly among the three groups [P < 0.01, analysis of variance (ANOVA)]. The MMP and QS groups exhibited more proper patellar alignment than the MPP group. The clinical results did not differ significantly among the groups (P > 0.05, ANOVA). In addition, there were no correlations between postoperative patellar alignment and clinical scores. CONCLUSIONS: The results of this study indicate that TKA performed using minimally invasive approaches yields superior patellar alignment compared to the traditional MPP approach.
Entities:
Keywords:
Minimally invasive surgery; Patellar alignment; Total knee arthroplasty
Authors: Wolf Petersen; Ingo Volker Rembitzki; Gerd-Peter Brüggemann; Andree Ellermann; Raymond Best; Andreas Gösele- Koppenburg; Christian Liebau Journal: Int Orthop Date: 2013-09-22 Impact factor: 3.075
Authors: Ludo A H van Engen; Ellie B M Landman; Ydo V Kleinlugtenbelt; Hans-Peter W van Jonbergen Journal: Int Orthop Date: 2018-10-12 Impact factor: 3.075
Authors: Ricarda Lechner; Matteo Lazzeri; Wilhelm Oberaigner; Paul Nardelli; Tobias Roth; Paul Köglberger; Martin Krismer; Michael Christian Liebensteiner Journal: Orthopade Date: 2021-02-11 Impact factor: 1.087