Thermography in the detection of carpal tunnel syndrome and other compressive neuropathies.
Studies were conducted using liquid crystal thermography (FlexiTherm) and electronic thermography for the diagnosis of carpal tunnel syndrome. Studies were also conducted to differentiate carpal tunnel syndrome from peripheral neurovascular injuries. Ninety patients were included in the study, with an average follow-up time of 24 months. Fifty patients also had electric studies for comparison and contrast. Thermal patterns of carpal tunnel syndrome showed a decreased vascular heat emission pattern over the median nerve distribution. The procedures using thermography consisted of imaging of the cervical spine, shoulders, forearms, and hands by Wexlerian guidelines to obtain diagnostic thermograms and a stress series. Results of the studies showed that thermographic studies were efficacious and sensitive for the differential diagnosis of carpal tunnel syndrome from other peripheral compressive neuropathies, including cervical radiculitis, thoracic outlet syndrome, cubital tunnel syndrome, and Guyon's canal syndrome. Biomechanic and etiologic factors indict carpal tunnel syndrome to be an occupational disease. Thermographic technique use may lead to the early diagnosis, treatment, and preventative measures that could eliminate the high cost of manpower loss and of medical care often concomitant with carpal tunnel syndrome.[1]References
- Thermography in the detection of carpal tunnel syndrome and other compressive neuropathies. Herrick, R.T., Herrick, S.K. The Journal of hand surgery. (1987) [Pubmed]
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