... described that thenar atrophy often proceedshypesthesia in the median distribution for many monthsor many years and the onset of thener muscle atrophy wasalways gradual. Also if the paralysis had existed ... Sakai, Japan, 2Department of Orthopaedic Surgery, Hosigaoka Kouseinenkin Hospital, Hirakata, Japan and 3Department of Orthopaedic Surgery, Toyonaka Municipal Hospital, Toyonaka, JapanEmail: ... stand-ard deviation (SD) using statistical software (Statview4.5J, SAS, Cary, NC). The significance of differences between the values was analyzed using the Mann-WhitneyJournal of Brachial...