The Effect of Postoperative Range of Motion on Functional Activities After Posterior Cruciate-Retaining Total Knee Arthroplasty

The best functional results following total knee arthroplasty are achieved with 128 degrees to 132 degrees of motion. A postoperative flexion contracture and hyperextension of >or=10 degrees are associated with a poorer outcome except that stair-climbing is improved with more motion.