Journal of Korean Society of Ultrasound in Medicine 2008;27(1): 13-18.
High Resolution Ultrasonography of Carpal Tunnel Syndrome Before and After Endoscopic Release of the Transverse Carpal Ligament: Correlation of Ultrasonography (US) Findings with Surgical Outcomes.
Jang Gyu Cha, Soo Bin Im, Hyun Seok, Beom Ha Yi, Wook Jin, Na Mi Choi, Hae Kyung Lee
1Department of Radiology, Soonchunhyang University Bucheon Hospital, Korea. mj4907@schbc.ac.kr
2Department of Neuro Surgery, Soonchunhyang University Bucheon Hospital, Korea.
3Department of Rehabilitation Medicine, Soonchunhyang University Bucheon Hospital, Korea.
4Department of Radiology, KyungHee University East-West Neomedicine Center, Korea.
  Published online: March 1, 2008.
ABSTRACT
PURPOSE: The aim of this study is to evaluate morphological changes of the medial nerve in patients with carpal tunnel syndrome (CTS) before and after endoscopic release of the transverse carpal ligament, and to correlate the ultrasonography (US) findings with the use of high resolution US and the surgical outcome for the median nerve. MATERIALS AND METHODS: Thirty patients with CTS confirmed by a clinical and electrophysiological study underwent high resolution US. The US instrumentation was equipped with a high frequency linear transducer to measure the cross sectional area, flattening ratio and swelling ratio of the medial nerve at the distal radioulnar joint, proximal and distal carpal tunnel before and three months after surgery. RESULTS: The cross sectional area (CSA) of the median nerve at the distal radioulnar level showed a decrease from 0.13 +/- 0.03 cm2 before surgery to 0.11 +/- 0.03 cm2 after surgery, and the CSA of the proximal carpal tunnel showed a decrease from 0.17 +/- 0.07 cm2 to 0.14 +/- 0.05 cm2; these differences were statistically significant. There was no statistically significant correlation between the morphological change and symptom improvement. CONCLUSION: This study confirmed a decreasing CSA of the medial nerve at the distal radioulnar and proximal carpal tunnel in a postoperative patient with CTS, as determined by the use of high resolution US. No association was found between a change in the CSA of the median nerve and symptom improvement. A further study based on multiple measurements of the median nerve with a longer period is necessary to establish the association between a change in the CSA of the median nerve and symptom improvement.
Keywords: Ultrasound (US); Carpal tunnel syndrome
TOOLS
Full text via DOI  Full text via DOI
METRICS
855
View
10
Download
We recommend
Editorial Office
A-304 Mapo Trapalace, 53 Mapo-daero, Mapo-gu, Seoul 04158, Korea
TEL : +82-2-763-5627   FAX : +82-2-763-6909   E-mail : office@ultrasound.or.kr
About |  Browse Articles |  Current Issue |  For Authors and Reviewers
Copyright © Korean Society of Ultrasound in Medicine.                 Developed in M2PI
Close layer
prev next