Abstract
Objectives: Carpal tunnel syndrome (CTS) is currently investigated with nerve conduction studies (NCS) for diagnosis, but these are expensive and invasive. We propose that ultrasound (US) will be comparable to NCS in diagnosing CTS. Method: There were two groups in this study – a control (60 wrists) and symptomatic group (56 wrists), who all underwent a clinical examination. US measurements of the median nerve were the cross-sectional area of the carpal tunnel at the level of pisiform (CSAc), pronator quadratus (CSAp), 12 cm proximally in the mid-forearm (CSAmf) and palmar bowing of the flexor retinaculum. The main calculation was the CSA difference (CSAd =
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