Total knee replacement in knee arthritis with fixed flexion deformity

Abstract

Fixed flexion deformity of knee secondary to osteoarthritis occurs mainly due to posterior soft tissue tethering and/or contracture especially posterior capsule rather than bony changes. A flexion deformity of the knee leads to functional, biomechanical and gait impairments that interferes with the normal daily activities of patients and decrease their satisfaction after TKR. Correction of FFD is mandatory during TKR replacement to optimize postoperative results. The intraoperative correction steps differ among knee surgeons and no consensus is adopted regarding the ideal method. So, for good correction a sequential stepwise approach should be adopted which mainly concentrates on soft tissues rather than bone cuts.