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Silastic replacement of the trapezium.
1Baulkham Hills Private Hospital, Sydney, Australia.
Journal of Hand Surgery (Edinburgh, Scotland)
|August 1, 1992
Summary
Silastic trapezium replacement offers good function and pain relief for 88% of patients. However, 53% developed bone lesions, and 9% experienced synovitis, though symptoms often improved.
Area of Science:
- Orthopedic Surgery
- Biomaterials Science
- Hand Surgery
Background:
- Silastic trapezium implants are used for treating trapeziometacarpal joint osteoarthritis.
- Long-term outcomes and potential complications require thorough evaluation.
Purpose of the Study:
- To assess the long-term functional, clinical, and radiological outcomes of silastic trapezium replacement.
- To investigate the incidence and impact of complications such as bone lesions and synovitis.
Main Methods:
- Retrospective study of 43 hands following silastic trapezium replacement.
- Postoperative assessment included functional, clinical, and radiological evaluations.
- Follow-up duration ranged from one to 13 years.
Main Results:
- 88% of patients reported good function and pain relief.
- Radiolucent bone lesions were observed in 53% of hands, likely due to silastic particle reaction.
- Four patients (9%) developed significant synovitis, which resolved after prosthesis removal.
- Synovitis occurred within the first four years, with no increased incidence in later follow-up.
Conclusions:
- Silastic trapezium replacement provides favorable long-term results for many patients.
- While bone lesions are common, they do not consistently correlate with symptoms.
- Early detection and management of synovitis are important for optimal patient outcomes.