Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6208889 | The Journal of Arthroplasty | 2015 | 6 Pages |
The purpose of this study was to evaluate the accuracy and efficiency of three patellar resection techniques: cutting guide, free hand with haptic feedback, and a novel technique utilizing four quadrant measurements. Ninety patients undergoing TKA were randomized to receive patellar resurfacing by one of the three study techniques. The novel four quadrant technique resulted in least post-resection asymmetry (0.85Â mm, PÂ =Â 0.001). The most accurate methods for obtaining desired thickness were haptic feedback (0.66Â mm mean discrepancy [MD]) and novel four quadrant technique (0.66Â mm MD) followed by the patellar cutting guide (1.40Â mm MD) (PÂ <Â 0.001). Use of a patellar cutting guide resulted in increased patellar asymmetry and decreased accuracy in obtaining desired patellar thickness in this prospective trial.