Ultrasonographic Findings of Carpal Tunnel after Local Steroid Injection in Carpal Tunnel Syndrome.
- Author:
Ji Yeon KIM
1
;
Jeong Hwan SEO
;
Seong Kyun KIM
;
Young Joo SIM
Author Information
1. Department of Physical Medicine and Rehabilitation and Research Institute of Clinical Medicine, Chonbuk National University Medical School, Korea. vivaseo@chonbuk.ac.kr
- Publication Type:Original Article
- Keywords:
Ultrasonography;
Carpal tunnel syndrome;
Steroid injection
- MeSH:
Carpal Tunnel Syndrome;
Hamate Bone;
Humans;
Median Nerve;
Tendons;
Transducers;
Triamcinolone Acetonide
- From:Journal of the Korean Academy of Rehabilitation Medicine
2008;32(2):189-193
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
OBJECTIVE: To evaluate ultrasonographic change of median nerve and flexor tendon in carpal tunnel after local steroid injection in carpal tunnel syndrome (CTS). METHOD: Thirteen patients (24 hands) with CTS diagnosed clinically and electrophysiologically were included. All subjects were examined by ultrasonography with high-resolution linear array transducer and injected with 40 mg of triamcinolone acetonide. The ultrasonography was evaluated with regard to cross-sectional area and the flattening ratio of the median nerve and cross-sectional area of the flexor pollicis longus tenon at pisiform and hamate bone. After 4 weeks, the patients were re-evaluated with electrophysiologic study and ultrasonography. RESULTS: Most patients (11/13) showed improvement of clinical symptoms and electrophysiologic parameters after the local steroid injection. The cross-sectional area of median nerve at pisiform using ultrasonography significantly decreased after the local steroid injection. However, flexor pollicis longus tendon did not show significant change after the injection. CONCLUSION: Local steroid injection in the patients with CTS caused improvement in ultrasonographic findings of median nerve.
