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The Journal of Bone and Joint Surgery (American) 85:147-152 (2003)
© 2003 The Journal of Bone and Joint Surgery, Inc.

Evaluation of a Suture Seat, a Biodegradable Suture Fastener, to Eliminate Knot-Tying in Arthroscopic Rotator Cuff Repair

Peter M. Bonutti, MD, Matthew J. Cremens, MS and Timothy J. Gray, MD

Corresponding author:
Peter M. Bonutti, MD
Bonutti Technologies, 2600 South Raney Street, Effingham, IL 62401.
E-mail address: peter@bonuttitec.com

The first 150 words of the full text of this article appear below.

Previous investigations have detailed the complexity and variability of suture knots used in arthroscopic surgery1-3. In order to improve the consistency and results, alternate means of arthroscopic knot-tying have been suggested and used4,5.


   Objectives
 
In this investigation, a new, alternate method for improving the results of arthroscopic knot-tying was evaluated. An absorbable Fixation Seat, which we developed, was tested in a laboratory environment to determine whether it could be consistently welded ultrasonically to multifilament suture in a fluid-filled environment and have strength equivalent to that of standard arthroscopic knots while exhibiting less loop elongation (creep). This same Fixation Seat was then used clinically in arthroscopic rotator cuff repair as a replacement for suture knots.


   Materials and Methods
 
The Unity Ultrasonic Fixation System (Bonutti Technologies, Effingham, Illinois) was used to weld the fixation seats ultrasonically to USP-2 (United States Pharmacopoeia-2) braided polyester suture both in the laboratory and in clinical use. The Unity . . . [Full Text of this Article]


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