Effectiveness of Repeated Prolonged Loading for Increasing Flexion in Knees Demonstrating Postoperative Stiffness

Abstract
Immobilization of human knees for several weeks or more can result in stiffness and diminished range of motion (ROM) in the joints.1–3 A number of operative remedies for increasing knee ROM in such cases have been described, including quadricepsplasty,2 capsulotomy,3 excision of scar tissue in the “recessus superior, patellofemoral joint, and anterior part of the tibiofemoral joint,” and release of the retinacula and the sliding mechanism on the medial and lateral sides of the joint.4 Few specifics, however, are available regarding the best way to apply therapeutic exercise to improve the ROM of knees that are stiff after surgery. One of the reports that does describe exercise procedures for increasing knee ROM is that of Sapega and associates.5

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