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Related Experiment Videos

Lumbar disc arthroplasty.

Seth C Gamradt1, Jeffrey C Wang

  • 1Department of Orthopaedic Surgery, David Geffen School of Medicine at UCLA, Box 956902, Los Angeles, CA 90095-6902, USA.

The Spine Journal : Official Journal of the North American Spine Society
|January 18, 2005
PubMed
Summary
This summary is machine-generated.

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Lumbar disc arthroplasty shows good short-term pain relief and safety for specific patients. Long-term effectiveness and device longevity require further study for this motion-preserving spine surgery.

Area of Science:

  • Orthopedic Surgery
  • Biomedical Engineering
  • Spinal Biomechanics

Background:

  • Painful lumbar disc degeneration is a common condition treated by spine surgeons.
  • Current treatments include microdiscectomy for early stages and arthrodesis for late stages.
  • Lumbar disc arthroplasty aims to preserve motion in degenerated segments, restore disc height, and prevent adjacent segment disease.

Purpose of the Study:

  • To review the anatomy and biomechanics of the lumbar motion segment.
  • To identify essential features for successful lumbar disc arthroplasty prostheses.
  • To evaluate early clinical outcomes of three currently used disc arthroplasty devices.

Main Methods:

  • Systematic literature review of Medline (up to August 2003).

Related Experiment Videos

  • Searched abstracts from North American Spine Society and Scoliosis Research Society meetings (1998-2003).
  • Literature was reviewed and summarized.

    • Main Results:

    • Short-term pain relief and disability outcomes are positive in some studies.
    • Implants demonstrate short-term safety; complications are typically related to surgical approach.
    • Recovery times appear shorter compared to spinal fusion (arthrodesis).

    Conclusions:

    • While short-term results are promising, long-term efficacy in pain relief and motion preservation remains under investigation.
    • Randomized comparative trials with fusion and device lifespan data are needed.
    • Current indications are limited to FDA trials for specific patient profiles with one or two levels of symptomatic disc degeneration.