[Motor replacement surgery via tendon transfer in radial nerve palsy].

OBJECTIVE: Restoration of active extension of wrist, thumb and digits by muscle-tendon transposition. INDICATIONS: Radial nerve palsy due to peripheral nerve injury. Peripheral nerve disease. Muscle or tendon injury. Restoration of wrist extension in high radial nerve palsy. CONTRAINDICATIONS: Reversible distal radial nerve palsy, absence of suitable donor muscles, spasticity, limited range of motion of affected joints, extensive scarring and inappropriate soft tissue conditions, unjustifiable loss of function at donor site. Reinnervated donor muscles, progressive muscle disease, insufficient patient compliance. SURGICAL TECHNIQUE: Dissection of the flexor carpi ulnaris, palmaris longus and pronator teres tendon insertion. Transposition of the tendons. Interweaving of tendons of the pronator teres and extensor carpi radialis brevis muscles, the extensor digitorum communis and flexor carpi ulnaris muscles, as well as the extensor pollicis longus and palmaris longus muscles using the Pulvertaft technique. POSTOPERATIVE MANAGEMENT: 3 Weeks immobilization in forearm splint. Additional immobilization for 2 weeks at night. Subsequently, intensive physical and occupational therapy for another 4-6 weeks is required, starting 3 weeks postoperatively.
RESULTS: The procedure was carried out in 12 patients over the past 14 years. We treated proximal radial nerve palsy in nine cases. In accordance with the current medical literature, we consider the described motor replacement surgery a reliable procedure.