Suture anchor versus screw fixation for greater tuberosity fractures of the humerus-a biomechanical study

Suture anchors and screws are commonly used for fixation of humeral greater tuberosity (GT) fractures in either arthroscopic or open surgeries, but no biomechanical studies have been performed to compare the strength of fixation constructs using these two implants. This cadaveric study aimed to comp...

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Bibliographic Details
Published in:Journal of orthopaedic research 2012-03, Vol.30 (3), p.423-428
Main Authors: Lin, Cheng-Li, Hong, Chih-Kai, Jou, I-Ming, Lin, Chii-Jeng, Su, Fong-Chin, Su, Wei-Ren
Format: Article
Language:English
Subjects:
Aged
Biomechanical Phenomena
biomechanics
Bone Screws
double-row fixation
Fracture Fixation, Internal - methods
Humans
humeral greater tuberosity fracture
Humerus - physiology
Male
Middle Aged
screw
Shoulder Fractures - surgery
suture anchor
Suture Techniques
Weight-Bearing
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Summary:Suture anchors and screws are commonly used for fixation of humeral greater tuberosity (GT) fractures in either arthroscopic or open surgeries, but no biomechanical studies have been performed to compare the strength of fixation constructs using these two implants. This cadaveric study aimed to compare the biomechanical strength of three different fixation constructs in the management of GT fractures: Double‐Row Suture Anchor Fixation (DR); Suture‐Bridge Technique using suture anchors and knotless suture anchors (SB); and Two‐Screw Fixation (TS). The experimental procedure was designed to assess fracture displacement after cyclic loading, failure load, and failure mode of the fixation construct. Significant differences were found among the SB (321 N), DR (263 N), and TS (187 N) groups (SB > DR > TS, p 
ISSN:0736-0266
1554-527X
DOI:10.1002/jor.21530