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Trapeziometacarpal joint instability after Bennett's fracture-dislocation
Masahiro Nagaoka1, Soya Nagao, Hiromi Matsuzaki
1Orthopaedic Department, Surugadai Nihon University Hospital, Chiyoda-ku, Tokyo, Japan.
Summary
Addressing trapeziometacarpal joint instability after Bennett's fracture-dislocation is crucial. Surgical intervention, including ligament reconstruction, effectively resolved pain and instability in patients.
Area of Science:
- Orthopedic Surgery
- Hand Surgery
- Trauma Surgery
Background:
- Investigating trapeziometacarpal (TMC) joint instability following Bennett's fracture-dislocation.
- Bennett's fracture-dislocation often leads to significant TMC joint pain and instability.
Observation:
- Six patients with TMC joint instability post-Bennett's fracture-dislocation were treated.
- Average patient age was 22.2 years; four males, two females.
- Surgical intervention included ligament reconstruction (Eaton's method) or osteotomy with ligament repair.
Findings:
- Average follow-up of 20 months showed no severe joint pain or instability.
- Fluoroscopy confirmed beak fragment displacement with the shaft fragment preoperatively.
- Treatment success was observed in all six patients.
Implications:
- Accurate anatomic reduction of the joint surface is essential in treating Bennett's fracture-dislocation.
- Addressing joint instability is equally critical for successful outcomes.
- Surgical management can effectively restore TMC joint stability and alleviate pain.