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Related Experiment Videos

Studies on tendon healing. A comparison between suturing techniques.

H L Defino, C H Barbieri, R P Gonçalves

    Journal of Hand Surgery (Edinburgh, Scotland)
    |October 1, 1986
    PubMed
    Summary
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    This study compared Kessler and Tsuge tendon suture techniques in dogs. Both methods showed similar healing and vascularization, indicating no significant difference in effectiveness for flexor digitorum profundus tendon repair.

    Area of Science:

    • Orthopedic Surgery
    • Biomaterials Science
    • Veterinary Medicine

    Background:

    • Tendon injuries, particularly in zone 2, require effective surgical repair.
    • Kessler and Tsuge techniques are common methods for tendon suture.
    • Comparative studies are essential to determine optimal surgical approaches.

    Purpose of the Study:

    • To compare the efficacy of Kessler's and Tsuge's tendon suture techniques.
    • To evaluate histological and biomechanical outcomes of both surgical methods.
    • To assess vascularization and healing processes following tendon repair.

    Main Methods:

    • Experimental study in canine models (dogs).
    • Division and repair of flexor digitorum profundus tendons using Kessler's and Tsuge's techniques.

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  • Evaluation via light microscopy, polarized-light microscopy, intravascular dye injections, and tensile strength tests.

    • Main Results:

    • Microscopical gaps at suture sites filled with maturing healing tissue observed in both groups.
    • Tensile strength increased with time post-repair, independent of suture material.
    • Newly formed blood vessels (neovascularization) developed at repair sites, with a tendency towards normal vascular patterns.

    Conclusions:

    • No significant differences were detected between Kessler's and Tsuge's techniques based on the methods used.
    • Both techniques facilitate tendon healing, characterized by tissue maturation and neovascularization.
    • Further research may explore long-term functional outcomes and subtle biomechanical differences.