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Related Experiment Videos

Replacement of "other" joints

B N Weissman1, B P Simmons, W H Thomas

  • 1Department of Radiology, Harvard Medical School, Boston, Massachusetts.

Radiologic Clinics of North America
|March 1, 1995
PubMed
Summary

Joint replacement beyond the hip and knee is still developing. Silicone implants in small joints, except for the MCPs, have shown issues like silicone synovitis, requiring careful radiographic assessment.

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Area of Science:

  • Orthopedic surgery
  • Biomaterials science
  • Radiology

Background:

  • Arthroplasty for joints other than the hip and knee is largely experimental.
  • Silicone arthroplasty in small joints has faced challenges, including silicone synovitis, limiting its use except in metacarpophalangeal (MCP) joints.

Purpose of the Study:

  • To enhance understanding of surgical options for joint replacement in non-hip/knee locations.
  • To detail available component types for these "other" joint prostheses.
  • To provide specific guidance on radiographic assessment for evaluating the success or failure of these implants.

Main Methods:

  • Review of current literature and clinical practices regarding arthroplasty in small joints.
  • Analysis of component designs and materials used in non-standard joint replacements.
  • Discussion of radiographic techniques and interpretation for assessing outcomes and complications.

Main Results:

  • Joint replacement in larger joints (excluding hip/knee) shows limited success.
  • Silicone implants have a high rate of synovitis in most small joints, with MCP joints being a partial exception.
  • Radiographic assessment is crucial for understanding implant performance and identifying complications.

Conclusions:

  • Arthroplasty for joints beyond the hip and knee requires further development.
  • Careful patient selection and vigilant radiographic monitoring are essential for managing silicone implant complications.
  • Knowledge of radiographic findings is key to accurately assessing the success of these specialized prostheses.

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