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Material considerations for intervertebral disc replacement implants.

Sudeep Taksali1, Jonathan N Grauer, Alexander R Vaccaro

  • 1Department of Orthopaedics and Rehabilitation, Yale University School of Medicine, 800 Howard Avenue, New Haven, CT 06510, USA.

The Spine Journal : Official Journal of the North American Spine Society
|November 16, 2004
PubMed
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Cervical and lumbar disc replacements are increasingly common. Understanding biomaterials and their properties is crucial for the long-term success and function of artificial disc implants.

Area of Science:

  • Biomaterials science and orthopedic implant technology.

Background:

  • Cervical and lumbar disc arthroplasty (artificial disc replacement) is gaining popularity.
  • Implant development often draws from established knowledge in other joint replacement fields.
  • Material properties are critical for the performance and durability of disc arthroplasty implants.

Purpose of the Study:

  • To review the biomaterials used in cervical and lumbar disc arthroplasty.
  • To highlight the importance of material properties and interfaces for implant longevity.

Main Methods:

  • Literature review of biomaterials used in disc replacement.
  • Analysis of material properties relevant to implant function and wear.

Main Results:

  • Commonly considered materials include cobalt-chrome alloys, titanium alloys, stainless steels, polyethylene, polyurethane, and ceramics.

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  • Implant interfaces and bearing surfaces are critical areas for wear and potential failure.

    • Conclusions:

    • Successful long-term total disc arthroplasty necessitates a comprehensive understanding of biomaterials.
    • Careful selection and application of biomaterials are essential for achieving desired implant performance and longevity.