Technique of Correction of Varus Deformity

Abstract

The operative technique for fixed varus deformities requires soft tissue release of tight medial structures as necessary to restore alignment of the leg to its mechanical axis. Principles remain the same as for any total knee arthroplasty: (1) bone cuts are inviolate and are never compromised to correct deformities; (2) minimal bone is resected and deficits are compensated by bone graft; (3) the flexion-extension spaces are equal; (4) the patella mechanism is aligned so there is no tilting or subluxation during flexion; and (5) soft tissue balance is preferably achieved prior to any bone cuts but always before the final bone cut (distal femur) to ensure that “too much” bone is not removed and that the flexion and extension spaces remain equal.