Median to Ulnar Nerve Transfer in Severe Cubital Tunnel Syndrome.

Autor: Deif, Osama Ahmed, Khedr, Wael, Madkour, Amr Mohamed
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Zdroj: Pan Arab Journal of Neurosurgery (PAJN); Jun2024, Vol. 19 Issue 1, p3-7, 5p
Abstrakt: BACKGROUND: Cubital tunnel syndrome is a common entrapment neuropathy that affects about 30 per 100,000 population and follows carpal tunnel syndrome in prevalence. Its incidence rises with advancing age with more males affected than females. Patients harboring cubital tunnel syndrome suffer from sensory disturbance involving the medial side of the ring finger and the little finger. Exacerbation of symptoms is noted at night because during sleeping the elbow is flexed. In severe entrapment, patients may suffer from weakness in the small muscles of the hand. Patients with severe degree of compression usually do not recover completely following simple decompression at the elbow. OBJECTIVE: The aim of the study is to assess the results of end to side supercharge transfer of the pronator quadratus branch of the anterior interosseous nerve to the motor branch of the ulnar nerve, in patients suffering from severe cubital tunnel syndrome. PATIENTS AND METHODS: This study included 15 cases with severe cubital tunnel syndrome where the pronator quadratus branch of the anterior interosseous nerve was transferred in an end to side fashion to the motor branch of the ulnar nerve as an adjunctive to transposition of the ulnar nerve at the elbow and release at Guyon’s canal. The severity of the entrapment was classified according to the McGowan Grading system. Motor power was recorded according to the Medical Research Council (MRC) grading of motor power. RESULTS: Over an 18 months follow up period, we had improved motor function ≥ 3 on MRC in 13 out of 15 patients (85%) and all patients had some subjective sensory improvement. Muscle atrophy improved in 80% and claw hand deformity improved in 67% of the patients. CONCLUSION: In conclusion, the pronator quadratus branch of the anterior interosseous nerve reverse end-to-side transfer to the motor branch of the ulnar nerve, together with ulnar nerve transposition at the elbow and surgical decompression at the wrist, helps with enhancing the recovery of hand muscles motor functions and muscle atrophy in patients with severe ulnar entrapment at the elbow. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index