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Related Experiment Videos

Bioresorbable implants--practical considerations

W S Pietrzak1, D Sarver, M Verstynen

  • 1Biomet, Inc., Airport Industrial Park, Warsaw, IN 46580, USA.

Bone
|July 1, 1996
PubMed
Summary

Orthopedic surgeons face challenges with traditional metal implants, like migration and breakage. Bioresorbable polymers offer an alternative, though they present new issues such as lower strength and tissue reactions.

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Area of Science:

  • Orthopedic Surgery
  • Biomaterials Science

Background:

  • Traditional metal implants are widely used for orthopedic internal fixation but present issues like migration, breakage, stress shielding, and growth restriction.
  • Bioresorbable polymer devices have emerged as alternatives, addressing some limitations of metal implants.

Purpose of the Study:

  • To discuss the field of synthetic bioresorbable polymers.
  • To specifically reference materials and devices suitable for replacing metal implants in orthopedic internal fixation.

Main Methods:

  • Literature review and discussion of existing research on bioresorbable polymers and metal implants in orthopedics.

Main Results:

  • Bioresorbable polymers offer an alternative to metal implants, potentially mitigating issues like stress shielding and imaging interference.
  • Challenges with bioresorbable polymers include lower mechanical strength compared to metals and potential for significant tissue reactions in some cases.

Conclusions:

  • Synthetic bioresorbable polymers represent a developing alternative for orthopedic internal fixation, with ongoing research focused on overcoming their current limitations.
  • The choice between metal and bioresorbable implants depends on the specific clinical indication, balancing the benefits and drawbacks of each material.

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