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Related Experiment Videos

Cementless hip replacement for arthritis. Problems with a smooth surface Moore stem.

T W Phillips1, S S Messieh

  • 1Department of Surgery, St. Joseph's Health Centre, London, Ontario, Canada.

The Journal of Bone and Joint Surgery. British Volume
|November 1, 1988
PubMed
Summary
This summary is machine-generated.

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This study on cementless hip replacements found that thigh pain due to stem loosening was common. Researchers advise caution with this implant for arthritic patients, suggesting cemented fixation may be more reliable.

Area of Science:

  • Orthopedic surgery
  • Biomaterials engineering
  • Clinical outcomes research

Background:

  • Cementless hip arthroplasty is a common procedure for hip joint replacement.
  • The Moore stem with a smooth surface is one type of implant used.
  • Assessing long-term clinical and radiological outcomes is crucial for implant evaluation.

Purpose of the Study:

  • To analyze the clinical results of cementless hip replacement using a Moore stem.
  • To correlate clinical findings with radiological changes observed over time.
  • To evaluate the effectiveness and potential complications of this specific implant.

Main Methods:

  • Prospective study of 42 consecutive cementless hip arthroplasties in 41 patients.
  • Review of clinical outcomes and radiological changes at a minimum of 2 to 6 years post-surgery.

Related Experiment Videos

  • Analysis of patient-reported symptoms, focusing on pain and functional status.

    • Main Results:

    • 63% of patients achieved good clinical results, while 18.5% had fair results and 18.5% had poor results.
    • Thigh pain during weight-bearing was the primary complication, identified as stem loosening.
    • Radiological correlation indicated a link between stem loosening and adverse clinical outcomes.

    Conclusions:

    • The cementless Moore stem with a smooth surface demonstrated a significant rate of loosening and associated thigh pain.
    • The implant's performance in arthritic patients was suboptimal, with unpredictable outcomes.
    • Cement fixation may offer more predictable results for hip arthroplasty in arthritic patients compared to this cementless option.