Subluxation versus eversion of the patella in total knee arthroplasty .
Patellar eversion during total knee replacement: a prospective, randomized trial.
J Bone Joint Surg Am. 2014 Feb 5;96(3):207-1368 patients undergoing total knee arthroplasty were randomized to either patellar subluxation (retraction) or patellar eversion during surgery. The purpose was to determine if subluxation of the patella led to any benefit over eversion in outcome in the short- and medium-term. Follow-up was conducted for 1 year postoperatively. The results demonstrated no significant differences in flexion, pain, and functional measures over 1 year postoperatively. Tibial overhang was significantly greater in the subluxation group, and two patellar tendon injuries were recorded in the subluxation group.
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