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Related Experiment Videos

Silicone carpal implants: risk or benefit?

O Eiken, L Ekerot, C Lindström

    Scandinavian Journal of Plastic and Reconstructive Surgery
    |January 1, 1985
    PubMed
    Summary
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    Silastic H.P. implants for carpal bone issues can cause severe silicone synovitis and bone lesions, particularly scaphoid and lunate types. Further use of these implants requires serious consideration due to potential complications.

    Area of Science:

    • Orthopedic Surgery
    • Biomaterials Science
    • Rheumatology

    Background:

    • Carpal arthroplasty using Silastic H.P. implants is a surgical option for various wrist conditions.
    • Complications associated with silicone implants can impact patient outcomes and implant longevity.

    Purpose of the Study:

    • To assess the long-term effects and complications of Silastic H.P. implant arthroplasty in the carpus.
    • To evaluate the incidence and severity of synovitis and osteolytic lesions following carpal implant surgery.

    Main Methods:

    • Retrospective assessment of 48 patients who underwent carpal Silastic H.P. implant arthroplasty.
    • Follow-up evaluation of post-operative courses, including imaging and surgical re-interventions.

    Main Results:

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    • 10 patients required early re-operation due to recurrent pain or synovitis.
    • Severe giant-cell silicone synovitis and osteolytic lesions were prevalent, especially with scaphoid/lunate implants (56% incidence).
    • Silicone debris was found within bone and distant lymph nodes, indicating particle migration.

    Conclusions:

    • Silastic H.P. implants, particularly for scaphoid and lunate bones, are associated with a high rate of severe silicone synovitis and osteolysis.
    • The widespread dissemination of silicone particles raises concerns about long-term tissue response.
    • The continued use of proximal carpal Silastic H.P. implants warrants serious re-evaluation.