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Related Experiment Videos

Loop security as a determinant of tissue fixation security

S S Burkhart1, M A Wirth, M Simonick

  • 1University of Texas Health Science Center at San Antonio and the San Antonio Orthopaedic Group, P.A., USA.

Arthroscopy : the Journal of Arthroscopic & Related Surgery : Official Publication of the Arthroscopy Association of North America and the International Arthroscopy Association
|October 27, 1998
PubMed
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This study found that a cannulated double-diameter knot pusher provides superior suture loop security for arthroscopic repairs. This method ensures tighter loops, comparable to hand-tied knots, which is crucial for effective tissue fixation.

Area of Science:

  • Orthopedic Surgery
  • Biomedical Engineering
  • Sports Medicine

Background:

  • Secure arthroscopic repair of rotator cuff tears and Bankart lesions depends on both knot security and loop security.
  • Loop security, the tightness of the suture loop, is often overlooked but critical for effective tissue fixation.

Purpose of the Study:

  • To compare the loop security of knots tied with No. 1 PDS suture using three different methods: hand-tied, standard single-hole knot pusher, and cannulated double-diameter knot pusher.
  • To determine which knot-tying method provides optimal loop security in arthroscopic surgical repairs.

Main Methods:

  • Suture loops were created using No. 1 PDS suture with three distinct techniques.
  • Knot security and loop circumference were measured for each method: hand-tied, single-hole knot pusher, and double-diameter knot pusher.

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Main Results:

  • The cannulated double-diameter knot pusher resulted in suture loops with tight circumferences, comparable to hand-tied knots.
  • Suture loops tied with the standard single-hole knot pusher were significantly less secure (looser) than those tied with the double-diameter knot pusher or by hand.

Conclusions:

  • Loop security is as vital as knot security in arthroscopic tissue fixation.
  • The cannulated double-diameter knot pusher is an effective tool for achieving superior loop security in arthroscopic rotator cuff and Bankart lesion repairs.