Article

OBJECTIVE: To identify the association between body composition and newly
developed carpal tunnel syndrome (CTS) and to search for the best probabilistic
cutoff value of associated factors to predict subjects with physical disabilities
developing new CTS. DESIGN: Longitudinal. SETTING: University-affiliated medical
center. PARTICIPANTS: Subjects with physical disabilities (N=47; mean age +/- SD,
42.1+/-7.7y). INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: Median and
ulnar sensory nerve conduction velocity (SNCV) were measured at the initial and
follow-up tests (interval >2y). Total and regional body composition were measured
with dual-energy x-ray absorptiometry at the initial test. Leg lean tissue
percentage was calculated to delineate each participant's manual loading degree
during locomotion. Leg lean tissue percentage is the lean tissue mass of both
legs divided by body weight. RESULTS: Based on median SNCV changes, we divided
all participants into 3 groups: subjects with bilateral CTS (median SNCV value
<45m/s plus a normative ulnar SNCV value >37.8m/s) in the initial test (n=10),
subjects with newly developed CTS in the follow-up test (n=8), and subjects
without additional CTS in the follow-up test (n=27). Eight of 35 subjects not
having bilateral CTS initially developed new CTS (8.8% per year; mean follow-up
period, 2.6y). Leg lean tissue percentage was associated with the probability of
newly developed CTS (adjusted odds ratio, .64; P<.05). Subjects with a leg lean
tissue percentage >12% were less likely to have developed new CTS at the
follow-up test (sensitivity, .75; specificity, .85; area under the curve, .88;
P<.005). CONCLUSIONS: Leg lean tissue percentage may be useful for early
identification of developing new CTS in subjects with physical disabilities.
Therefore, a preventive program for those subjects at risk can start early.
CI - Copyright (c) 2017 American Congress of Rehabilitation Medicine. Published by
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Langue : ANGLAIS