Arthroscopy: The Journal of Arthroscopic & Related Surgery
Pullout strength of knotless suture anchors
Section snippets
Methods
Three groups of 10 suture anchors each were tested. The 3 groups consisted of the Knotless Suture Anchor, the GII Suture Anchor, and the 3.5-mm Panalok Suture Anchor (Fig 2). The Knotless Anchor is a suture anchor with a loop of No. 1 Ethibond suture (Ethicon, Somerville, NJ) attached to the anchor (Fig 1). The loop is passed through the intended soft tissue, and then captured by a channel at the tip of the anchor. The anchor is then inserted into the bone. Soft-tissue tension is achieved by
Results
Average load to failure is illustrated in Fig 5. As can be seen, the Panalok group consistently resulted in lower loads, averaging 434.8 N. The GII group was slightly higher at 471.5 N, and the Knotless Anchor group was highest at 650.0 N. These differences were statistically significant among groups (P = .02). The differences were also statistically significant when the Knotless group was compared with either the GII or the Panalok group separately in a 2-tailed t test (P = .02 and P = .02,
Discussion
Since the original description of the Bankart (or Perthes) lesion in recurrent shoulder instability,1 several methods have been described for repair. The gold standard has been the open repair, as originally described by Rowe et al. in 1978.2 They reported a 97% success rate at a minimum of 1 year follow-up (mean, 6 years). Complications included degenerative arthritis, joint stiffness, neurovascular injury, infection, and recurrent instability. All subsequent repair techniques are usually
References (12)
- et al.
Arthroscopic Bankart repair using suture anchors
Oper Tech Orthop
(1991) - et al.
Optimizing arthroscopic knots
Arthroscopy
(1995) - et al.
Arthroscopic shoulder capsulorrhaphy using metal staples
Orthop Clin North Am
(1993) Arthroscopy for shoulder instability and a technique for arthroscopic repair
Arthroscopy
(1988)- et al.
Arthroscopic bioabsorbable tack stabilization of initial anterior shoulder dislocationsA preliminary report
Arthroscopy
(1995) - et al.
Arthroscopic Bankart suture repairTechnique and early results
Arthroscopy
(1987)
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