Over ten-year follow-up after carpal tunnel release

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  • 10年を超える手根管開放術の術後成績

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<p>Objectives: The clinical symptoms and electrophysiological features of patients with carpal tunnel syndrome (CTS) who underwent surgery at our clinic between 2005 and 2011 were evaluated over a follow-up period of 10-16 years after the surgery.</p><p>Subjects and Methods: Of the 101 patients (131 hands) operated during the above-mentioned period, the data of 39 (53 operated hands) who underwent clinical examination and electrophysiological tests during the follow-up period were analyzed. In all cases, the author served as the surgeon and conducted carpal tunnel release via small incisions under local anesthesia. The electrophysiological tests evaluated the nerve conduction velocity (NCV), used to measure the distal motor latency (DML) of the compound muscle action potential (CMAP) of the abductor pollicis brevis muscle, as well as the sensory nerve conduction velocity (SCV). </p><p>Results: None of the cases showed relapse of the CTS or required re-operation. Hand numbness subsided in 52 of the 53 hands that had shown numbness prior to the surgery. Recovery from muscle atrophy was seen in 14 of 16 hands. The DML and SCV improved rapidly from the 3rd postoperative month, and improvement over the long-term was noted even in most of the severely sick patients in whom CMAP recording was not possible preoperatively. </p><p>Conclusions: The results of our long-term follow-up for more than 10 years after the surgery showed that the electrophysiological deterioration over the long-term was minimal. We also found that clinical symptoms, such as numbness, pain, and muscle atrophy were alleviated in the patients.</p>

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