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Related Experiment Videos

Souter-Strathclyde total elbow arthroplasty: medium-term results.

Steven K Samijo1, Marlies E Van den Berg, Aart D Verburg

  • 1Orthopaedic Department of Atrium Medisch Center, Heerlen, Kliniek Klein Rosendael, Rosendael, The Netherlands. steven.Samijo@zonnet.nl

Acta Orthopaedica Belgica
|January 30, 2004
PubMed
Summary

The Souter-Strathclyde elbow prosthesis shows moderate long-term survival in rheumatoid arthritis patients. Humeral component loosening is a concern, potentially linked to stem design and limited extension.

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Area of Science:

  • Orthopedic Surgery
  • Rheumatology
  • Biomaterials Science

Background:

  • Rheumatoid arthritis frequently affects the elbow joint, causing pain and functional limitation.
  • Total elbow arthroplasty (TEA) is a surgical option for end-stage rheumatoid arthritis of the elbow.
  • The Souter-Strathclyde unconstrained elbow prosthesis is one implant used for TEA.

Purpose of the Study:

  • To prospectively evaluate the long-term clinical outcomes and survival rates of the Souter-Strathclyde unconstrained elbow prosthesis.
  • To identify factors associated with prosthesis failure, specifically humeral component loosening.

Main Methods:

  • Prospective study of 36 patients (45 prostheses) with severe rheumatoid arthritis (Larsen grade 4-5).
  • Follow-up included assessment of prosthesis survival, radiographic loosening, and clinical outcomes.

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  • Survival analysis was performed with revision and radiographic loosening as endpoints.

    • Main Results:

    • At a mean follow-up of 98 months, the prosthesis survival rate was 76% (revision endpoint) and 67% (radiographic loosening endpoint).
    • The ulnar component survival rate was high at 98%.
    • Humeral component loosening was observed and appeared related to the short humeral stem and persistent extension deficit.

    Conclusions:

    • The Souter-Strathclyde prosthesis demonstrates moderate long-term survival in rheumatoid arthritis patients.
    • Humeral component loosening is a significant concern, suggesting potential design limitations and the importance of addressing extension deficits.