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J Neurol Surg A Cent Eur Neurosurg 2017; 78(04): 329-336
DOI: 10.1055/s-0036-1593437
Original Article
Georg Thieme Verlag KG Stuttgart · New York

A Single-Center Prospective Observational Study of Ultrasonography for 6 Months after Surgical Decompression of the Median Nerve at the Carpal Tunnel

Suleyman Tas
1   Department of Neurosurgery, Goethe-University, Frankfurt, Germany
,
Frank Staub
2   Center for Peripheral Neurosurgery, Dossenheim, Germany
,
Thomas Dombert
2   Center for Peripheral Neurosurgery, Dossenheim, Germany
,
Gerhard Marquardt
1   Department of Neurosurgery, Goethe-University, Frankfurt, Germany
,
Christian Senft
1   Department of Neurosurgery, Goethe-University, Frankfurt, Germany
,
Volker Seifert
1   Department of Neurosurgery, Goethe-University, Frankfurt, Germany
,
Stephan Duetzmann
1   Department of Neurosurgery, Goethe-University, Frankfurt, Germany
› Author Affiliations
Further Information

Publication History

30 January 2016

09 August 2016

Publication Date:
30 November 2016 (online)

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Abstract

Objective To determine the natural history of the morphology of the median nerve after carpal tunnel decompression.

Methods Between October and December 2014, patients with suspected carpal tunnel were prospectively enrolled and underwent pre- and postoperative (3 and 6 months) high-definition ultrasonography, electrophysiology, and clinical testing.

Results A total of 81 patients were enrolled in the study; 75 (93%) could be reached for the 6-month follow-up, and 100% were clinically better at the 6-month follow-up. The mean cross-sectional area decreased from 14.3 ± 4.4 mm2 to 9.6 ± 2.3 mm2 (mean ± standard deviation [SD]). The mean distal motor latency decreased from 6.5 ± 2.2 msec to 4.4 ± 0.8 msec (mean ± SD). Distal motor latency improved statistically significantly after surgical decompression as well, but sooner.

Conclusion We present the second largest series of patients with sonographic follow-up after surgical decompression of the carpal tunnel.

Keywords

carpal tunnel syndrome - high-resolution ultrasound - carpal tunnel surgery
 

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