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Related Experiment Videos

Total ankle replacement.

Y Lodhi1, J McKenna, M Herron

  • 1Cappagh National Orthopaedic Hospital, Finglas, Dublin 11.

Irish Medical Journal
|June 18, 2004
PubMed
Summary
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Scandinavian Total Ankle Replacement (STAR) shows excellent functional outcomes. This study found 90% good to excellent results in patients with osteoarthritis and rheumatoid arthritis, with improved ankle mobility and no signs of loosening.

Area of Science:

  • Orthopedic Surgery
  • Biomaterials Engineering
  • Rheumatology

Background:

  • Total ankle replacement (TAR) is a surgical option for end-stage ankle arthritis.
  • The Scandinavian Total Ankle Replacement (STAR) prosthesis is a mobile-bearing implant.
  • Intermediate-term outcomes of the STAR prosthesis in a mixed patient population require further evaluation.

Purpose of the Study:

  • To evaluate the intermediate-term functional outcomes and radiological results of the Scandinavian Total Ankle Replacement (STAR) prosthesis.
  • To assess the efficacy of the STAR prosthesis in patients with primary osteoarthritis and rheumatoid arthritis.
  • To compare the study's findings with previously published Scandinavian results.

Main Methods:

  • A retrospective review of 29 patients (30 STAR prostheses) performed by a single surgeon between 1997 and 2001.

Related Experiment Videos

  • Patients included those with primary osteoarthritis (12) and rheumatoid arthritis (11), with a small cohort of post-traumatic arthritis (6).
  • Functional outcomes were assessed using the American Orthopaedic Foot and Ankle (AOFAS) hindfoot score and Kofoed ankle score. Radiological assessment for loosening was also performed.

    • Main Results:

    • Mean dorsiflexion improved from 7 to 11 degrees; mean plantar flexion improved from 15 to 24 degrees.
    • The mean AOFAS hindfoot score was 95/100.
    • The Kofoed ankle score indicated 17 excellent, 5 good, and 4 fair outcomes. No radiological evidence of loosening was observed.

    Conclusions:

    • The STAR ankle replacement demonstrated favorable intermediate-term functional outcomes in 90% of patients with mixed osteoarthritic and rheumatoid conditions.
    • The results align with previously published Scandinavian data, supporting the efficacy of the STAR prosthesis.
    • The STAR prosthesis is a viable option for managing severe ankle arthritis, offering significant improvements in range of motion and patient-reported scores without early signs of implant failure.