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Related Experiment Videos

Development of a bioabsorbable suture anchor.

E Pirhonen1, A Kaikkonen, P Helevirta

  • 1Institute of Biomaterials, Tampere University of Technology, P.O. Box 589, FIN-33101, Tampere, Finland.

Journal of Biomedical Materials Research
|November 11, 1999
PubMed
Summary
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The new bioabsorbable SmartAnchor demonstrates superior suture/anchor attachment and fixation strength compared to commercial anchors, indicating promising mechanical performance for clinical use.

Area of Science:

  • Biomaterials Science
  • Orthopedic Surgery
  • Medical Device Engineering

Background:

  • Suture anchors are crucial for soft tissue reattachment in orthopedic procedures.
  • Existing anchors have varying mechanical properties, necessitating development of improved devices.
  • Bioabsorbable materials offer advantages in eliminating the need for anchor removal.

Purpose of the Study:

  • To evaluate the mechanical properties of a novel bioabsorbable suture anchor, SmartAnchor.
  • To compare the performance of SmartAnchor against commercially available anchors and tacks.

Main Methods:

  • Comparative biomechanical testing of suture/anchor attachment breaking force.
  • Assessment of anchor fixation force (pull-out strength) for SmartAnchor, MitekGII, BankartTack, and Suretac.

Related Experiment Videos

  • Statistical analysis using T-test to determine significance.

    • Main Results:

    • SmartAnchor exhibited a 32% higher attachment breaking force than MitekGII and 84% higher than Ogden anchors.
    • SmartAnchor showed 40% greater fixation force than MitekGII, though not statistically significant (p=0.05).
    • Tested tacks (BankartTack, Suretac) demonstrated similar fixation forces around 210 N.

    Conclusions:

    • The bioabsorbable SmartAnchor possesses robust initial mechanical properties.
    • SmartAnchor's performance suggests suitability for further clinical investigation in orthopedic applications.
    • The study provides valuable data for the selection and design of suture anchors.