The base of coracoid process as a reference for glenoid reconstruction in primary or revision reverse shoulder arthroplasty: CT-based anatomical study

Ott, Nadine, Kieback, Jan-Dirk, Welle, Kristan, Paul, Christian, Burger, Christof and Kabir, Koroush . The base of coracoid process as a reference for glenoid reconstruction in primary or revision reverse shoulder arthroplasty: CT-based anatomical study. Arch. Orthop. Trauma Surg.. NEW YORK: SPRINGER. ISSN 1434-3916

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DOI:10.1007/s00402-020-03642-w

Abstract

Introduction Joint replacement surgery as a treatment for glenohumeral arthritis with glenoid bone loss is challenging. The aim of this study is to offer an anatomical orientation for glenoid reconstruction. Methods In this study, we measured size, inclination and version of the glenoid surface, as well as the distance between the articular line of the glenoid, base of the coracoid process, and acromion using computer tomographic (CT) imaging of 131 study participants aged 19-88 years in the period of 2010-2013. Results We measured a mean distance of 6.5 +/- 0.2 mm from the glenoid articular line to the base of the coracoid process in the transverse CT plane. Body height has shown no significant impact on the glenoid morphology. We observed significant differences between males and females: The glenoid appeared to be located 5.2 +/- 0.9 mm higher and the humeral head was 4.5 +/- 0.7 mm larger in male subjects compared with females (r = .699; p < .01). Conclusion In our study, the base of the coracoid offers an anatomical reference during reconstruction of the glenoid in primary and revision shoulder arthroplasty. As only 2D-CT imaging allows for accurate assessment of glenoid bone defects, we consider conventional X-ray imaging insufficient for proper preoperative planning before shoulder arthroplasty.

Item Type:

Journal Article

Creators:

Creators	Email	ORCID	ORCID Put Code
Ott, Nadine	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Kieback, Jan-Dirk	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Welle, Kristan	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Paul, Christian	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Burger, Christof	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Kabir, Koroush	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED