[Joint denervation, a simple response to complex problems in hand surgery]. / La dénervation articulaire, une réponse simple à des problèmes complexes de chirurgie de la main.

STUDY AIM: In patients with preserved mobility and stability a painful joint remains a difficult problem, especially in elderly patients. All operations, including intracarpal arthrodesis, reduce an already limited mobility, require prolonged immobilization and have a high rate of complications. Denervation could be proposed in such cases. MATERIALS AND METHODS: In our study denervation was performed on 132 wrists, 36 first carpo-metacarpal joints and 32 proximal inter-phalangeal joints. RESULTS: We have been disappointed in the past by partial wrist denervations. Fifty cases of complete and isolated wrist denervation were reviewed with a mean 5-year followup. Strength and mobility were only marginally improved but pain was decreased by a mean 75% (on a visual analog scale) in 74% of patients. At the proximal inter-phalangeal joint level, the mean pain improvement was 88% in 85% of patients. At the first carpo-metacarpal joint level, results of denervation were less predictable and the mean pain improvement was 67% in 81% of patients, with a mean 17-month follow-up. CONCLUSION: Joint denervation is a simple but precise operation performed under local anesthesia and on an outpatient basis. It provides good results in elderly patients, with few complications.