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[Development of new, biodegradable implants].

L Claes1, A Ignatius

  • 1Institut für Unfallchirurgische Forschung und Biomechanik, Universität Ulm, Germany. lutz.claes@medizin.uni-ulm.de

Der Chirurg; Zeitschrift Fur Alle Gebiete Der Operativen Medizen
|October 24, 2002
PubMed
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Biodegradable implants offer a significant advantage by degrading after fulfilling their function, eliminating the need for removal surgery. Their properties can be tailored, but limitations exist in stiffness and relaxation behavior for certain applications.

Area of Science:

  • Biomaterials Science
  • Polymer Chemistry
  • Orthopedic Surgery

Background:

  • Traditional metal implants necessitate secondary removal surgeries.
  • Biodegradable implants offer functional degradation, potentially stimulating tissue healing.
  • Key materials include polylactide, polyglycolide, copolymers, and polydioxanone.

Purpose of the Study:

  • To review the advantages and limitations of biodegradable implants.
  • To discuss material properties, fabrication, and degradation control.
  • To outline current and future clinical applications.

Main Methods:

  • Review of literature on biodegradable polymers for medical implants.
  • Analysis of material properties, including mechanical strength and degradation behavior.

Related Experiment Videos

  • Examination of clinical applications and biocompatibility data.

    • Main Results:

    • Biodegradable polymers offer functional degradation, reducing the need for implant removal.
    • Fabrication techniques improve mechanical properties, but stiffness and relaxation remain challenges.
    • Degradation is controllable via copolymerization and molecular weight but difficult to predict in vivo.
    • Biocompatibility is generally good with low complication rates.

    Conclusions:

    • Biodegradable implants are suitable for specific applications, particularly in nearly unloaded situations.
    • Continued development in tissue engineering and drug delivery is anticipated.
    • Careful consideration of material properties and in vivo factors is crucial for successful application.