Electronic Thesis and Dissertation Repository

Degree

Master of Science

Program

Surgery

Supervisor

Dr. James Howard

Abstract

There are two predominant techniques used by most surgeons to perform total knee arthroplasty: gap balancing and measured resection. The purpose of the current study was to observe if surgical technique has an effect on post-operative coronal plane balance throughout range of motion and to observe if surgical technique has an effect on tibial and femoral component migration. This was a randomized, prospective controlled trial. Twenty-three patients (24 knees) were enrolled: twelve knees in each group. All knees showed migration of their components from the initial RSA to their RSA at 6 months. Migration was similar for both groups, but in the GB group, the tibial component internally rotated whereas the measured resection group externally rotated (p=0.03). There was no difference between the GB group and the MR group in terms of coronal plane balance throughout range of motion exhibited post-TKA implantation (p=0.56). Our data demonstrated that post-operative coronal plane balance throughout range of motion of the knee is most easily predicted by pre-implant operative coronal plane balance.


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Orthopedics Commons

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