Report of a Case of the Thumb Carpometacarpal Joint Dislocation

The dislocation of the thumb carpometacarpal (CMC) joint is a rare injury, and dislocation is even more uncommon. Delay in diagnosis and treatment of this type of dislocation usually will be accompanied with unfavorable result there with pain and decline of contraction force of thumb, and even it might be accompanied with erosive arthritis. Therefore, the dislocation of the thumb CMC must be diagnosed quickly and have a suitable remedy for its coming back to normal function of injured hand. In this case-report, we surveyed a case of traumatic dislocation of the carpometacarpal joint of the thumb in seventeen-years-old male. The patient had carpometacarpal dislocation of the thumb of right hand that in due to a motorcycle accident, and had pain in the physical exam and had tenderness in thumb CMC therewith somewhat deformity and swelling. After surgery the thumb was immobilized for six weeks and after which he was enrolled into a rehabilitation program. There was no pain, joint instability and restriction range of motion at the end of six months.