Trauma | Mode of onset | Examples |
Acute | Sudden | A golfer hits a tree stump with immediate pain in ulnar side of wrist at impact (extensor carpi ulnaris subsheath tear) |
Repetitive | Sudden | A golfer has acute wrist pain while playing a normal shot. MRI scan shows stress fracture of the hamate |
Gradual | A golfer experiences gradual lead shoulder pain. X-ray shows acromioclavicular joint arthritis |