Biomechanical evaluation of effect of coracoid tunnel placement on load to failure of fixation during repair of acromioclavicular joint dislocations

Arthroscopy : the Journal of Arthroscopic & Related Surgery : Official Publication of the Arthroscopy Association of North America and the International Arthroscopy Association
Joel V FerreiraAugustus D Mazzocca

Abstract

To evaluate the effect of entry and exit points of the coracoid tunnel on load to failure and mode of failure, to reduce the incidence of coracoid fractures and acromioclavicular joint repair failures. This study investigates 5 tunnel placements based on different entry and exit points in the coracoid process: center-center orientation represents perfect placement of the bone tunnel and served as perfect tunnel placement in our study. Four common errors in drilling were then tested and acted as the experimental groups in our study (medial-center, center-medial, lateral-center, and center-lateral). Using 35 cadaveric shoulders (mean age, 68.0 ± 13.0 years), we tested these 5 tunnel orientations using a single repair technique (cortical button) loaded to failure on an MTS 858 Servohydraulic test system (MTS Systems, Eden Prairie, MN). A control group of 7 cadaveric shoulders without the presence of a coracoid tunnel was also tested to determine the type of fracture pattern that occurred. The coracoids without tunnel drilling fractured in patterns similar to traumatic coracoid injuries. With regard to the 5 tunnel groups, it was found that the loads to failure with center-center and medial-center tunnel placement were significantl...Continue Reading

References

Jan 1, 1997·The Journal of Bone and Joint Surgery. British Volume·K OgawaM Ui
Nov 12, 2005·The American Journal of Sports Medicine·Augustus D MazzoccaRobert A Arciero
Mar 10, 2010·Journal of Shoulder and Elbow Surgery·Thomas M DeBerardinoAugustus D Mazzocca

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Citations

Jul 19, 2013·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Michael HoffmannJan Phillip Petersen
Sep 12, 2014·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·S MetzlaffW Petersen
May 13, 2014·Arthroscopy : the Journal of Arthroscopic & Related Surgery : Official Publication of the Arthroscopy Association of North America and the International Arthroscopy Association·Michael HoffmannJan P Petersen
Oct 5, 2014·Clinics in Sports Medicine·Jay B Cook, John M Tokish
Aug 14, 2013·Journal of Shoulder and Elbow Surgery·Pierorazio MottaUmberto Mariotti
May 23, 2015·Arthroscopy : the Journal of Arthroscopic & Related Surgery : Official Publication of the Arthroscopy Association of North America and the International Arthroscopy Association·Peter J MillettRyan J Warth
Oct 18, 2014·Acta Orthopaedica·Jonas S NordinKarl Lunsjö
May 15, 2015·Archives of Orthopaedic and Trauma Surgery·Jan TheopoldPierre Hepp
Jun 7, 2015·Arthroscopy : the Journal of Arthroscopic & Related Surgery : Official Publication of the Arthroscopy Association of North America and the International Arthroscopy Association·Andreas B ImhoffKnut Beitzel
Oct 31, 2013·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Benedikt SchliemannAndré Weimann
Feb 11, 2015·Current Reviews in Musculoskeletal Medicine·Richard MaXinning Li
Mar 5, 2016·Arthroscopy : the Journal of Arthroscopic & Related Surgery : Official Publication of the Arthroscopy Association of North America and the International Arthroscopy Association·Frank MartetschlägerSepp Braun
Oct 30, 2016·Orthopaedics & Traumatology, Surgery & Research : OTSR·D LuL-J Sun
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Jan 15, 2020·Case Reports in Orthopedics·Rodrigo Nicolás BrandarizMaximiliano Ranalletta
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Jul 14, 2020·Orthopaedic Journal of Sports Medicine·Kyra A BenaventBrandon E Earp
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Mar 22, 2020·Journal of Shoulder and Elbow Surgery·Haluk CelikHeinz Hoenecke
Sep 9, 2021·The American Journal of Sports Medicine·Nicholas M PanarelloKelly G Kilcoyne

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