Techniques of psoas tenotomy and rectus femoris transfer: "new" operations for cerebral palsy diplegia--a description.

Two novel operations for cerebral palsy are described. Both procedures, originally proposed and performed by Gage, have been advocated as biomechanically more effective than previous procedures in achieving the objectives of eliminating hip and knee contractures in cerebral palsy. Description of the operative technique and the rationale of use are stated to assist the operator.