In Vitro Biomechanical Evaluation and Comparison of FiberWire, FiberTape, OrthoFiber, and Nylon Leader Line for Potential Use During Extraarticular Stabilization Of Canine Cruciate Deficient Stifles

Authors

  • RICHARD BURGESS BVM&S,

    1. Department of Veterinary Clinical Sciences, Purdue University, West Lafayette, IN
    2. Departments of Agricultural and Biological Engineering and Veterinary Clinical Sciences, Mississippi State University, Mississippi State, MS
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  • STEVE ELDER BS, MS, PhD,

    1. Department of Veterinary Clinical Sciences, Purdue University, West Lafayette, IN
    2. Departments of Agricultural and Biological Engineering and Veterinary Clinical Sciences, Mississippi State University, Mississippi State, MS
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  • RON McLAUGHLIN DVM, DVSc, Diplomate ACVS,

    1. Department of Veterinary Clinical Sciences, Purdue University, West Lafayette, IN
    2. Departments of Agricultural and Biological Engineering and Veterinary Clinical Sciences, Mississippi State University, Mississippi State, MS
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  • PETER CONSTABLE BVSc, MS, PhD, Diplomate ACVIM

    1. Department of Veterinary Clinical Sciences, Purdue University, West Lafayette, IN
    2. Departments of Agricultural and Biological Engineering and Veterinary Clinical Sciences, Mississippi State University, Mississippi State, MS
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  • Presented in part at the 2008 American College of Veterinary Surgeons Symposium Resident's Forum, September 23–25, San Diego, CA.

  • Research was conducted at the Department of Agricultural and Biological Engineering, Mississippi State University, Mississippi State, MS 39762.

  • Funding provided by the Department of Veterinary Clinical Sciences, Mississippi State University.

Corresponding author: Richard Burgess, BVM&S, Veterinary Clinical Sciences, Lynn Hall, 625 Harrison Street, West Lafayette, IN 47907. E-mail: rburgess@purdue.edu.

Abstract

Objective— To compare biomechanical properties of 3 new generation polyethylene sutures (FiberTape [FT], FiberWire [FW], and OrthoFiber [OF]) with nylon leader line (NL) for use during extraarticular fixation of cranial cruciate deficient stifles.

Study Design— In vitro biomechanical testing of suture loops under monotonic tensile and cyclical loading until failure.

Sample Population— Constructs of FT, FW, OF, and NL.

Methods— Twenty loops of each of 12 combinations of fixation and suture had monotonic tensile and cyclical loading. Two knotting techniques (square knot [SQ], slip knot [SL]) and a crimp clamp (CR) system were evaluated. Elongation, stiffness, and strength of constructs was tested. The main effects of group, loop material, and their interaction were evaluated.

Results— Knotted FT, FW, and OF had less elongation than knotted NL under monotonic tensile and cyclical loading. Under monotonic tensile loading, knotted FT and OF were stiffer than knotted NL. CR FT, CR FW, and CR OF were stiffer than CR NL and CR FT, CR FW, and CR OF were stiffer than knotted FT, FW, and OF. FW and OF knotted loops were weaker than knotted NL. CR FT was stronger than CR NL. CR FT and CR OF were weaker than knotted FT and OF.

Conclusions— Polyethylene sutures are stronger, stiffer and elongate less than nylon leader. Crimping suture alters the biomechanical properties of the loop.

Clinical Relevance— FW, FT, and OF may perform better in reconstructive procedures, where increased strength and stiffness are considered to be beneficial.

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