Master of Science
Dr. James Howard
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.
Perry, Kevin I., "The impact of surgical technique on coronal plane motion in total knee arthroplasty" (2016). Electronic Thesis and Dissertation Repository. 3514.