A Simple, Stepwise, Outside-in Technique for Lateral Retinacular Release for Management of Patellar Maltracking During Total Knee Arthroplasty

2020 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Adit R. Maniar ◽  
Rajesh N. Maniar
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Lateral Retinacular Release ◽  
Patellar Maltracking ◽  
Total Knee

Comparison between Single- and Multi-Radius Prostheses Used in Modified Kinematically Aligned Cruciate-Retaining Total Knee Arthroplasty

2020 ◽  
Author(s):  
Tomoyuki Matsumoto ◽  
Yoshinori Takashima ◽  
Koji Takayama ◽  
Kazunari Ishida ◽  
Naoki Nakano ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Clinical Outcomes ◽  
Knee Arthroplasty ◽  
Simulation Software ◽  
Patellar Tracking ◽  
Trochlear Groove ◽  
Lateral Retinacular Release ◽  
Cruciate Retaining ◽  
Patellar Maltracking ◽  
Total Knee

AbstractKinematically aligned total knee arthroplasty (TKA) has gained interest for achieving more favorable clinical outcomes than mechanically aligned TKA. The present study aimed to compare the clinical outcomes of kinematically aligned TKAs using single-radius (SR) or multi-radius (MR) prostheses. Sixty modified kinematically aligned cruciate-retaining TKAs (30 SR and 30 MR type prostheses) were performed in patients with varus-type osteoarthritis using a navigation system. Intraoperative and postoperative patellar tracking were compared between the two groups. Trochlea shape was also compared between the prostheses and preoperative native anatomy using three-dimensional simulation software. Total 2 years postoperatively, the range of motion and 2011 Knee Society Scores (KSS) were compared between the two groups. There were no differences in patellar maltracking including patellar lateral shift and tilt between the two groups; however, the ratio of intraoperative lateral retinacular release for adjusting patellar tracking was significantly higher in the MR group than in the SR group. Lateral and medial facet heights in both prostheses were understuffed compared with native knee anatomy, while the deepest point of the trochlear groove was significantly more medial in the MR group. The postoperative clinical outcomes showed no significant differences between the two groups. In conclusion, modified kinematically aligned TKAs using a SR or MR prosthesis showed no significant differences in clinical outcomes or patellar tracking when appropriate lateral retinacular release was performed.

Preoperative Radiological Parameters Predicting the Need for Lateral Retinacular Release in Total Knee Arthroplasty

2019 ◽  
Vol 34 (12) ◽  
pp. 2925-2930 ◽  
Author(s):  
Natesan Rajkumar ◽  
Dhanasekaran Soundarrajan ◽  
Palanisami Dhanasekararaja ◽  
Shanmuganathan Rajasekaran
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Lateral Retinacular Release ◽  
Radiological Parameters ◽  
Total Knee

A lateral retinacular release during total knee arthroplasty changes femorotibial kinematics: an in vitro study

2017 ◽  
Vol 138 (3) ◽  
pp. 401-407 ◽  
Author(s):  
Arnd Steinbrück ◽  
Christian Schröder ◽  
Matthias Woiczinski ◽  
Alexander Glogaza ◽  
Peter E. Müller ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
In Vitro Study ◽  
Vitro Study ◽  
Lateral Retinacular Release ◽  
Total Knee

Radiographic features predictive of patellar maltracking during total knee arthroplasty

2009 ◽  
Vol 17 (10) ◽  
pp. 1217-1224 ◽  
Author(s):  
Shi-Lu Chia ◽  
Azhar M. Merican ◽  
Bernard Devadasan ◽  
Robin K. Strachan ◽  
Andrew A. Amis
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Radiographic Features ◽  
Patellar Maltracking ◽  
Total Knee
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