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Isolated carpometacarpal dislocation of the thumb. Case report
1Department of Surgery, County Hospital, Aabenraa, Denmark.
Summary
Traumatic first carpometacarpal joint dislocation treated with internal fixation showed initial success. However, long-term follow-up revealed instability, suggesting surgical repair of ligaments and capsule may be necessary.
Area of Science:
- Orthopedic Surgery
- Hand Surgery
- Traumatology
Background:
- Traumatic dislocations of the first carpometacarpal (CMC) joint are uncommon injuries.
- Initial management often involves closed reduction and immobilization.
Observation:
- A case of traumatic isolated first CMC joint dislocation was treated with internal fixation and immobilization for six weeks.
- Clinical and radiographic assessment at 18 months post-treatment indicated residual joint instability.
Findings:
- Internal fixation and immobilization provided satisfactory initial results for traumatic first CMC joint dislocation.
- Despite initial success, slight instability persisted at 18 months follow-up, evident on clinical and X-ray examination.
Implications:
- Surgical intervention, specifically open reduction with ligament and capsule suture, should be considered for managing persistent instability after initial treatment of first CMC joint dislocations.
- This approach may improve long-term joint stability and functional outcomes in patients with traumatic first CMC joint injuries.