Midterm clinical and radiologic results of reverse shoulder arthroplasty with an eccentric glenosphere.
Constant score
Eccentric glenosphere
Subjective Shoulder Value
inferior overhang
midterm outcomes
range of motion
reverse shoulder arthroplasty
scapular notching
Journal
Journal of shoulder and elbow surgery
ISSN: 1532-6500
Titre abrégé: J Shoulder Elbow Surg
Pays: United States
ID NLM: 9206499
Informations de publication
Date de publication:
May 2020
May 2020
Historique:
received:
08
03
2019
revised:
25
09
2019
accepted:
30
09
2019
pubmed:
9
1
2020
medline:
21
10
2020
entrez:
9
1
2020
Statut:
ppublish
Résumé
An eccentric glenosphere (EG) has been proposed as a way of preventing scapular notching after reverse shoulder arthroplasty (RSA). Our aim was to report the midterm clinical and radiographic results of EG after RSA. A number of the patients described here were included in a previous study with short-term follow-up. The current retrospective study gave us the opportunity to follow many of these patients for a longer period of time. A retrospective analysis of prospectively collected data was conducted. Statistical significance was set at P < .001. Forty-nine RSAs with an EG and at least 60 months of follow-up were included. Range of motion (ROM), Constant scores (CSs), and Subjective Shoulder Value (SSV) were assessed. Scapular notching was graded according to the Sirveaux classification. At the last follow-up, the mean improvement in active elevation (ROM) was 46° and the mean CS increased by nearly 31 points (both groups P < .001). The final SSV was 70%. Twenty-one patients (43%) had scapular notching, but in two-thirds of patients it was low-grade. The use of an EG provided excellent clinical outcomes that persisted with midterm follow-up. The rate of notching was lower than in other studies with EGs, but further studies are required to confirm this. An EG was safe and there were no issues with baseplate loosening or failure.
Sections du résumé
BACKGROUND
BACKGROUND
An eccentric glenosphere (EG) has been proposed as a way of preventing scapular notching after reverse shoulder arthroplasty (RSA). Our aim was to report the midterm clinical and radiographic results of EG after RSA. A number of the patients described here were included in a previous study with short-term follow-up. The current retrospective study gave us the opportunity to follow many of these patients for a longer period of time.
METHODS
METHODS
A retrospective analysis of prospectively collected data was conducted. Statistical significance was set at P < .001. Forty-nine RSAs with an EG and at least 60 months of follow-up were included. Range of motion (ROM), Constant scores (CSs), and Subjective Shoulder Value (SSV) were assessed. Scapular notching was graded according to the Sirveaux classification.
RESULTS
RESULTS
At the last follow-up, the mean improvement in active elevation (ROM) was 46° and the mean CS increased by nearly 31 points (both groups P < .001). The final SSV was 70%. Twenty-one patients (43%) had scapular notching, but in two-thirds of patients it was low-grade.
CONCLUSION
CONCLUSIONS
The use of an EG provided excellent clinical outcomes that persisted with midterm follow-up. The rate of notching was lower than in other studies with EGs, but further studies are required to confirm this. An EG was safe and there were no issues with baseplate loosening or failure.
Identifiants
pubmed: 31911214
pii: S1058-2746(19)30705-0
doi: 10.1016/j.jse.2019.09.044
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
976-981Informations de copyright
Copyright © 2019 Journal of Shoulder and Elbow Surgery Board of Trustees. Published by Elsevier Inc. All rights reserved.