MedStar Authors catalog › Details for: Comparison of Suture-Based Anchors and Traditional Bioabsorbable Anchors in Foot and Ankle Surgery.
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Comparison of Suture-Based Anchors and Traditional Bioabsorbable Anchors in Foot and Ankle Surgery.

by Hembree, W Chad; Tsai, Michael A; Parks, Brent G; Miller, Stuart D.
Citation: Journal of Foot & Ankle Surgery. 56(1):3-7, 2017 Jan - Feb.Journal: The Journal of foot and ankle surgery : official publication of the American College of Foot and Ankle Surgeons.Published: 2017ISSN: 1067-2516.Full author list: Hembree WC; Tsai MA; Parks BG; Miller SD.UI/PMID: 27989342.Subject(s): *Absorbable Implants | *Achilles Tendon/su [Surgery] | Adult | Ankle Joint/su [Surgery] | Biomechanical Phenomena | Cadaver | *Calcaneus/su [Surgery] | Female | Humans | Male | Middle Aged | *Suture Anchors | Suture Techniques | *Tensile StrengthInstitution(s): MedStar Union Memorial HospitalDepartment(s): Orthopaedic SurgeryActivity type: Journal Article.Medline article type(s): Comparative Study | Journal ArticleOnline resources: Click here to access online Digital Object Identifier: https://dx.doi.org/10.1053/j.jfas.2016.10.011 (Click here) Abbreviated citation: J Foot Ankle Surg. 56(1):3-7, 2017 Jan - Feb.Local Holdings: Available online through MWHC library: 2003 - present, Available in print through MWHC library:1999-2007.Abstract: We compared the pullout strength of a suture-based anchor versus a bioabsorbable anchor in the distal fibula and calcaneus and evaluated the relationship between bone mineral density and peak load to failure. Eight paired cadaveric specimens underwent a modified Brostrom procedure and Achilles tendon reattachment. The fibula and calcaneus in the paired specimens received either a suture-based anchor or a bioabsorbable suture anchor. The fibular and calcaneal specimens were loaded to failure, defined as a substantial decrease in the applied load or pullout from the bone. In the fibula, the peak load to failure was significantly greater with the suture-based versus the bioabsorbable anchors (133.3 +/- 41.8 N versus 76.8 +/- 35.3 N; p = .002). No significant difference in load with 5 mm of displacement was found between the 2 groups. In the calcaneus, no difference in the peak load to failure was found between the 2 groups, and the peak load to failure with 5 mm of displacement was significantly lower with the suture-based than with the bioabsorbable anchors (52.2 +/- 9.8 N versus 75.9 +/- 12.4 N; p = .003). Bone mineral density and peak load to failure were significantly correlated in the fibula with the suture-based anchor. An innovative suture-based anchor had a greater peak load to failure compared with a bioabsorbable anchor in the fibula. In the calcaneus, the load at 5 mm of displacement was significantly lower in the suture-based than in the bioabsorbable group. The correlation findings might indicate the need for a cortical bone shelf with the suture-based anchor. Suture-based anchors could be a viable alternative to bioabsorbable anchors for certain foot and ankle procedures. Copyright (c) 2016 American College of Foot and Ankle Surgeons. Published by Elsevier Inc. All rights reserved.

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