TY - BOOK AU - Iannuzzi, Nicholas P AU - Murphy, Michael S AU - Paez, Adrian G AU - Parks, Brent G TI - Fixation of Regan-Morrey Type II Coronoid Fractures: A Comparison of Screws and Suture Lasso Technique for Resistance to Displacement SN - 0363-5023 PY - 2017/// KW - *Bone Screws KW - *Elbow Joint/in [Injuries] KW - *Elbow Joint/su [Surgery] KW - *Fracture Fixation, Internal/is [Instrumentation] KW - *Suture Techniques KW - *Ulna Fractures/su [Surgery] KW - Biomechanical Phenomena KW - Cadaver KW - Equipment Failure Analysis KW - Humans KW - Materials Testing KW - Curtis National Hand Center KW - MedStar Union Memorial Hospital KW - Orthopaedic Surgery KW - Comparative Study KW - Journal Article N1 - Available in print through MWHC library: 1999 - 2002, Available online from MWHC library: 1995 - present N2 - CLINICAL RELEVANCE: Clinical studies have reported a higher rate of failure after screw fixation compared with suture lasso fixation; however, this study demonstrated a greater stiffness and load to failure after screw fixation of type II coronoid fractures. Screw fixation may provide a stronger fixation construct for fractures of adequate size to support a screw. Further studies may be warranted to assess the importance of securing the anterior capsule to the coronoid tip when using a suture lasso construct because this may affect the stability of the elbow after fixation; CONCLUSIONS: Screw fixation was biomechanically superior to fixation using a suture lasso technique. For coronoid fractures in which screw or suture fixation is feasible, screw fixation may provide greater resistance to displacement of the coronoid compared with a suture lasso technique; Copyright (c) 2017 American Society for Surgery of the Hand. Published by Elsevier Inc. All rights reserved; METHODS: We performed a biomechanical study using 10 pairs of fresh-frozen cadaveric elbows. A transverse osteotomy at the midpoint of the coronoid height was created to simulate a Regan-Morrey type II coronoid fracture. The specimens were randomized to screw fixation or suture lasso fixation. The load to failure and stiffness were then measured using a materials testing machine; PURPOSE: The aim of this study was to compare the load to failure and stiffness achieved in coronoid fractures treated with a posterior-to-anterior screw versus a suture lasso technique; RESULTS: Screw fixation provided greater strength and stiffness than suture lasso fixation. Mean load to failure was 405 N in the screw fixation group compared with a load to failure of 207 N for suture fixation. Screw fixation resulted in a mean stiffness of 284 kPa/mm compared with 119 kPa/mm after suture fixation UR - https://dx.doi.org/10.1016/j.jhsa.2016.11.003 ER -