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Studies

Percutaneous Carpal Tunnel Release Compared with Mini-Open Release Using Ultrasonographic Guidance for Both Techniques.
Nakamichi K, Tachibana S, Yamamoto S, Ida M.
J Hand Surg Am. 2010 Mar;35(3):437-45.

PURPOSE: To compare the outcomes of percutaneous carpal tunnel release (PCTR) and mini-open carpal tunnel release (mini-OCTR) using ultrasonographic guidance for both techniques.

METHODS: 
We included 74 hands of 65 women with idiopathic carpal tunnel syndrome (age, 52-71 y; mean, 58 y). Thirty-five hands of 29 women had the PCTR (release with a device consisting of an angled blade, guide, and holder, along a line midway between the median nerve and ulnar artery (safe line) under ultrasonography (incision, 4 mm), and 39 hands of 36 women had the mini-OCTR (release along the safe line, distally under direct vision (incision, 1-1.5 cm) and proximally under ultrasonography, using a device consisting of a basket punch and outer tube.

RESULTS: 
Assessments at 3, 6, 13, 26, 52, and 104 weeks showed no significant differences in neurologic recovery between the groups (p > .05). The PCTR group had significantly less pain, greater grip and key-pinch strengths, and better satisfaction scores at 3 and 6 weeks (p < .05), and less scar sensitivity at 3, 6, and 13 weeks (p < .05). There were no complications.

CONCLUSIONS: 
The PCTR provides the same neurologic recovery as does the mini-OCTR. The former leads to less postoperative morbidity and earlier functional return and achievement of satisfaction.

TYPE OF STUDY/LEVEL OF EVIDENCE: 
Therapeutic III.

Copyright 2010. Published by Elsevier Inc. 



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