The paper describes a case of ulnar neuropathy in a man who made household fittings and toys using bamboo. Several years after starting the job he showed symptoms and physical signs of ulnar nerve entrapment at the elbow, which were confirmed by electrophysiological findings. Job analysis revealed biomechanical risk factors consisting of a high repetition of forceful flexion and extension of the elbow, wrist and fingers without sufficient rest periods. Chronic musculoskeletal overuse gradually leads to tendon and nerve disorders. The ulnar neuropathy described can be classed under cumulative occupational trauma, which is the most important cause of musculoskeletal disorders among the working population.
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