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Double-Row Capsulolabral Repair Increases Load to Failure and Decreases Excessive Motion.

Lucas S McDonald1, Matthew Thompson2, David W Altchek2

  • 1Department of Sports Medicine and Shoulder Surgery, Hospital for Special Surgery, New York, New York, U.S.A..

Arthroscopy : the Journal of Arthroscopic & Related Surgery : Official Publication of the Arthroscopy Association of North America and the International Arthroscopy Association
|May 23, 2016
PubMed
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Double-row capsulolabral repair in cadavers reduced shoulder motion and improved fixation strength compared to single-row repair. This suggests double-row techniques offer enhanced stability for shoulder instability injuries.

Area of Science:

  • Orthopedic surgery
  • Biomechanical engineering
  • Sports medicine

Background:

  • Shoulder instability often results from capsulolabral disruption.
  • Current surgical techniques aim to restore stability and biomechanical function.
  • Comparing repair methods is crucial for optimizing patient outcomes.

Purpose of the Study:

  • To compare the biomechanical properties of double-row versus single-row capsulolabral repairs.
  • To evaluate the effect of repair technique on glenohumeral motion and translation.
  • To determine the load-to-failure characteristics of each repair method.

Main Methods:

  • Cadaveric shoulder model with induced capsulolabral injury.
  • Matched pairs of shoulders repaired with single-row and double-row mattress techniques.

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  • Measurement of range of motion, translation, and load-to-failure parameters.

    • Main Results:

    • Double-row repair significantly decreased external rotation and total range of motion.
    • Both repair types reduced anterior-inferior translation compared to the injured state.
    • Double-row repair demonstrated significantly higher yield load, ultimate load to failure, and energy absorbed at ultimate load.

    Conclusions:

    • Double-row capsulolabral repair techniques may offer superior fixation security.
    • These repairs can lead to decreased shoulder motion and enhanced load-to-failure characteristics compared to single-row methods.