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Sonographic median nerve change after steroid injection for carpal tunnel syndrome
Author(s) -
Wang JiaChi,
Lin KonPing,
Liao KwongKum,
Chang YueCune,
Wang Kevin A.,
Huang YuFang,
Chiu JanWei
Publication year - 2018
Publication title -
muscle and nerve
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.025
H-Index - 145
eISSN - 1097-4598
pISSN - 0148-639X
DOI - 10.1002/mus.26171
Subject(s) - carpal tunnel syndrome , medicine , median nerve , carpal tunnel , surgery , anesthesia
ABSTRACT Introduction : The sonographic changes of the median nerve after steroid injection for carpal tunnel syndrome (CTS) still require investigation. Methods : Sixty‐two patients with CTS were included. The Boston Carpal Tunnel Questionnaire was administered, and ultrasonographic examinations were performed before and at 2, 6, and 12 weeks after steroid injection. At 12 weeks, general improvement was scored on a 6‐point Likert scale. Results : After treatment, the cross‐sectional area (CSA) of the median nerve was significantly reduced at 2‐, 6‐, and 12‐week follow‐ups (for each, P < 0.001, analysis of variance). The “significant improvement” group ( n = 39) had a significantly greater reduction in the CSA at the carpal tunnel inlet ( P = 0.014) and CSA in the proximal carpal tunnel ( P = 0.003) compared with the “little/no improvement” group ( n = 23). Discussion : Sonographic measurement of CSA may be considered complementary to the standard clinical evaluation in monitoring of treatment response in patients with CTS. Muscle Nerve 58 : 402–406, 2018