Median and Ulnar Nerve Function in Tattoo Artists

This case-control study aims to investigate the effects of occupational hand-arm vibration exposure on median and ulnar nerve functions in tattoo artists. Chronic exposure to vibration generated by tattoo machines may lead to neurosensory impairment, reduced tactile sensitivity, and decreased hand strength. Objective assessments including nerve provocation tests, sensory threshold evaluation, two-point discrimination, vibration perception, grip and pinch strength measurements, and validated patient-reported outcome questionnaires will be used. Findings will be compared with age- and sex-matched healthy controls.

Inclusion Criteria: * Age ≥ 18 years * Professional tattoo artists with at least 1 year of occupational experience (case group) * Healthy individuals without occupational vibration exposure (control group) * Voluntary participation and provision of informed consent * No upper extremity trauma or surgery within the last 6 months Exclusion Criteria: * Diagnosis of diabetes mellitus * Diagnosis of peripheral neuropathy * History of cervical radiculopathy or cervical disc herniation * History of upper extremity surgery or injury * Presence of rheumatologic or systemic inflammatory diseases * Pregnancy * Substance or alcohol abuse * Engagement in a second occupation involving repetitive hand use or vibration exposure