Clin Shoulder Elbow Search

CLOSE


Clin Shoulder Elbow > Volume 18(4); 2015 > Article
Clinics in Shoulder and Elbow 2015;18(4):248-253.
DOI: https://doi.org/10.5397/cise.2015.18.4.248    Published online December 31, 2015.
Evaluating Scapular Notching after Reverse Total Shoulder Arthroplasty
Young Kyu Kim, Jun Sung Won, Chang Kyu Park, Jong Geun Kim
Department of Orthopedic Surgery, Gachon University Gil Medical Center, Incheon, Korea. 99korean@naver.com
Received: 4 October 2015   • Revised: 19 December 2015   • Accepted: 19 December 2015
Abstract
BACKGROUND: Scapular notching can happen at diverse location depending on implant design or operative technique, therefore, it is easily misdiagnosed. Thus, this study purposed to suggest a method helpful to assess scapular notching.
METHODS
The subjects were 73 cases of reverse shoulder arthroplasty (RSA) for cuff tear arthropathy during the period from May 2009 to April 2014 and followed-up for over a year. There was medialized RSA in 22 cases, bone increased offset RSA (BIO-RSA) in 36 cases, and metal increased offset RSA (metal-RSA) in 15 cases. Scapular notching was not determined by bone defect at the inferior of glenosphere as Sirveaux's classification, but scapular notching at the site where the rotational route of the polyethylene of humeral implant met the scapular neck were examined. The results were compared with conventional method.
RESULTS
By conventional method, scapular notching was observed in 10 cases (45.5%) in medialized RSA, 12 cases (33.3%) in BIO-RSA, and none in metal-RSA. By new method, it was observed in 9 cases (40.9%) in medialized RSA, 10 cases (27.8%) in BIO-RSA, and none of metal-RSA. The site of scapular notching was apart from glenoshpere in 18 cases, and at inferior of glenosphere in 1 case. Absorption of bone graft was observed in 4 (11.1%) out of 36 cases of BIO-RSA.
CONCLUSIONS
It is hard to distinguish scapular notching from absorption of bone graft in BIO-RSA, and bone absorption at the lateral lower end of glenoid in medialized RSA. Thus, it is considered useful to assess scapular notching at the site where the rotational route of the polyethylene insert meets scapular neck.
Key Words: Rotator cuff tear arthropathy; Reverse total shoulder arthroplasty; Scapular notching; Bone absorption


ABOUT
ARTICLE CATEGORY

Browse all articles >

BROWSE ARTICLES
EDITORIAL POLICY
FOR CONTRIBUTORS
Editorial Office
Department of Orthopaedic Surgery, Seoul National University Hospital,
#6603, 101 Daehak-ro, Jongno-gu, Seoul 03080, Korea
Tel: +82-2-3410-1854    Fax: +82-2-3410-0061    E-mail: journal@cisejournal.org                

Copyright © 2021 by Korean Shoulder and Elbow Society. All rights reserved.

Developed in M2PI

Close layer
prev next