Title
Biomechanical comparison of suture-button, bioabsorbable screw, and metal screw for ankle syndesmotic repair: A meta-analysis.
Document Type
Article
Publication Date
2-2021
Publication Title
Foot and ankle surgery : official journal of the European Society of Foot and Ankle Surgeons
Abstract
BACKGROUND: To compare biomechanically metal screw fixation to suture-button or bioabsorbable screw fixation for ankle syndesmotic injuries.
METHODS: A literature search of the comparison studies in Pubmed and Google Scholar was conducted. The biomechanical outcomes of interest were syndesmotic stability in the coronal, sagittal, and axial planes as well as torque and rotation at failure.
RESULTS: A total of 11 cadaveric studies were included. In the suture-button group, coronal displacement (MD 1.72mm, p = 0.02) and sagittal displacement (MD 2.65mm, p = 0.0003) were increased relative to the metal screw group. In contrast, no difference was found with axial rotation (MD 0.35 degrees, p = 0.57). Bioabsorbable screws exhibited equivalent failure torque (MD -3.04Nm, p = 0.53) and rotation at failure (MD 3.77 degrees, p = 0.48) in comparison to metal screws.
CONCLUSIONS: Suture-button provide less rigidity when compared to metal screw fixation. They afford flexible syndesmotic micromotion which may more closely resemble a physiological state and be helpful for ligament healing. Bioabsorbable screws demonstrate similar mechanical strength properties to metal screws.
Volume
27
Issue
2
First Page
117
Last Page
122
Recommended Citation
Lee JS, Curnutte B, Pan K, Liu J, Ebraheim NA. Biomechanical comparison of suture-button, bioabsorbable screw, and metal screw for ankle syndesmotic repair: A meta-analysis. Foot Ankle Surg. 2021 Feb;27(2):117-122. doi: 10.1016/j.fas.2020.03.008. Epub 2020 Apr 27. PMID: 32466876.
DOI
10.1016/j.fas.2020.03.008
ISSN
1460-9584
PubMed ID
32466876