Abstract
1 . A specific mechanism of injury can produce a tear of the articular disc of the wrist without any associated bony lesion.
2. Torn discs have been found associated with Colles's fractures and with dislocation of the inferior radio-ulnar joint.
3. The injury gives rise to clear-cut symptoms and definite physical signs.
4. Operation in fourteen cases has shown five types of tear of the disc.
5. Arthrographs of the wrist are helpful in establishing the diagnosis.
6. In isolated tears removal ofthe disc relieves the symptoms and does not prejudice function.
7. If there is other joint injury, removal of the disc cannot be expected to give as satisfactory a result.
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