Topical menthol gels are classified 'topical analgesics' and are used to relieve pain of the musculoskeletal system. However, double-blind randomized controlled trials are lacking. Here the investigators examine - in a double-blind randomized controlled cross-over trial - the acute effect of topical menthol (Biofreeze) and placebo (gel with a menthol scent) on pain symptoms in slaughterhouse workers with symptoms of Carpal Tunnel Syndrome.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
10
National Research Centre for the Working Environment
Copenhagen, Denmark
Change in arm/hand pain intensity (scale 0-10) during work
the participant rates "pain intensity during the last hour" on a scale from 0-10 immediately before, and 1,2,3 hours after application of the gel. The primary outcome is the change from before to after (average of 1,2 and 3 hours after) application of the gel
Time frame: change from before to after (average of 1,2 and 3 hours after) application of the gel
GROC
Global Rating of Change (GROC) on a scale from - 5(much worsening of pain) to 5(much improvement of pain)
Time frame: 3 hours after application of the gel
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