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

Cheng Li Lin, Chih Kai Hong, I. Ming Jou, Chii Jeng Lin, Fong Chin Su, Wei Ren Su

研究成果: Article同行評審

28 引文 斯高帕斯(Scopus)

摘要

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 < 0.05) in the mean force of cyclic loading to create 3 mm displacement. Regarding the mean force of cyclic loading to create 5 mm displacement and ultimate failure load, no significant difference was found between the DR (370 N, 480 N) and SB (399 N, 493 N) groups, but both groups achieved superior results compared with the TS group (249 N, 340 N) (p < 0.05). The results suggested that the suture anchor constructs would be stronger than the fixation construct using screws for the humeral GT fracture.

原文English
頁(從 - 到)423-428
頁數6
期刊Journal of orthopaedic research : official publication of the Orthopaedic Research Society
30
發行號3
DOIs
出版狀態Published - 2012 三月

All Science Journal Classification (ASJC) codes

  • Orthopedics and Sports Medicine

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