PEDIATRIC MEDIAN MONONEUROPATHIES - A CLINICAL AND ELECTROMYOGRAPHIC STUDY

Seventeen children, 6 girls and 11 boys, aged 5-17 years with pediatri c median mononeuropathies (PMM) were identified among 1809 who had EMG s primarily in the electromyographic laboratory at The Children's Hosp ital, Boston, between 1979 and 1993. Electromyography documented the P MM to be at the wrist in 7 children, including 3 children with idiopat hic carpal tunnel syndrome (CTS)-1 whose symptoms were accentuated by skiing-2 with a systemic illness (mucolipidosis III and scleroderma), and in 1 child each the distal PMM was secondary to a cast or lacerati on. A proximal PMM was identified in 10 children, including 8 with tra uma, 1 with an osteoid osteoma, and 1 with juvenile cutaneous mucinosi s. Five children (3 with CTS and 1 each with mucolipidosis III and juv enile cutaneous mucinosis) had bilateral disease. The localization (59 % proximal) and cause of these PMMs differed greatly from our experien ce with adult median neuropathies. (C) 1994 John Wiley and Sons, Inc.