• Daniele Vanni, Francesco Saverio Sirabella, Renato Galzio, Vincenzo Salini, and Vincenzo Magliani.
• Orthopaedic and Traumatology Department, "G. D'Annunzio" University, Chieti;
• J. Neurosurg. 2015 Nov 1;123(5):1230-7.

ObjectThe purpose of this study was to assess the effectiveness and safety of an alternative minimally invasive technique for the treatment of carpal tunnel syndrome (CTS).MethodsThis was designed as a prospective, randomized, open-label, blinded end point evaluation (PROBE) study. The active comparison was double tunnels technique (DTT) (Group A, 110 patients) versus standard open decompression of the median nerve (control [Group B], 110 patients). Patient recruitment started in January 2011. The primary outcomes were the functional Boston Carpal Tunnel Syndrome Questionnaire (BCTSQ) scores and visual analog scale (VAS) scores for pain (pVAS) at Weeks 2 and 4, and at Months 3, 6, and 12. The secondary outcome was the aesthetics (aVAS) score at Weeks 2 and 4, and at Months 3, 6, and 12.ResultsThe Student t-test and ANOVA were used, and the results were considered statistically significant if the p value was ≤0.05 for continuous variables. The DTT is a tissue-sparing approach that allows the surgeon to limit the length of the incision (0.6±0.05 cm) and to respect the palmar fascia and the subcutaneous tissue. Recovery from wrist pain, night pain, numbness, stiffness, and weakness was achieved more effectively and quickly compared with the standard approach. Better BCTSQ, pVAS, and aVAS scores were observed in Group A.ConclusionsThe DTT is a safe and effective approach for the treatment of CTS. This technique entails faster recovery times, better aesthetic outcomes, and lower risks of complications.

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