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Journal of the Korean Academy of Rehabilitation Medicine 2008;32(2):189-193.
Ultrasonographic Findings of Carpal Tunnel after Local Steroid Injection in Carpal Tunnel Syndrome.
Kim, Ji Yeon , Seo, Jeong Hwan , Kim, Seong Kyun , Sim, Young Joo
1Department of Physical Medicine and Rehabilitation and Research Institute of Clinical Medicine, Chonbuk National University Medical School, Korea. vivaseo@chonbuk.ac.kr
2Department of Physical Medicine and Rehabilitation, Kosin University College of Medicine, Korea.
수근관 증후군에서 국소 스테로이드 주사 전후의 초음파 소견
김지연, 서정환, 김성균, 심영주1
전북대학교 의과대학 재활의학교실 및 임상의학 연구소, 1고신대학교 의과대학 재활의학교실
To evaluate ultrasonographic change of median nerve and flexor tendon in carpal tunnel after local steroid injection in carpal tunnel syndrome (CTS).

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.

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.

Local steroid injection in the patients with CTS caused improvement in ultrasonographic findings of median nerve. (J Korean Acad Rehab Med 2008; 32: 189-193)

Key Words: Ultrasonography, Carpal tunnel syndrome, Steroid injection


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