Outcomes of anatomic shoulder arthroplasty in primary osteoarthritis in type B glenoids

Background Primary glenohumeral osteoarthritis with posterior wear of the glenoid and posterior subluxation of the humerus (Walch type B) presents a challenge to the treating surgeon. Our hypothesis was that glenoids with biconcavity (B2) would be associated with worse outcomes (functional scores an...

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Bibliographic Details
Published in:Journal of shoulder and elbow surgery 2015-12, Vol.24 (12), p.1888-1893
Main Authors: Chin, Paul C., MD, PhD, Hachadorian, Michael E., BS, Pulido, Pamela A., BSN, Munro, Michelle L., BS, Meric, Gokhan, MD, Hoenecke, Heinz R., MD
Format: Article
Language:English
Subjects:
Adult
Aged
Aged, 80 and over
Anatomic total shoulder arthroplasty
Arthroplasty, Replacement
biconcave glenoid
Disability Evaluation
Female
Humans
Male
Middle Aged
Orthopedics
Osteoarthritis - surgery
Patient Satisfaction
primary osteoarthritis
Range of Motion, Articular
Reoperation
Retrospective Studies
Shoulder Dislocation - surgery
Shoulder Joint - surgery
type B glenoid
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Summary:Background Primary glenohumeral osteoarthritis with posterior wear of the glenoid and posterior subluxation of the humerus (Walch type B) presents a challenge to the treating surgeon. Our hypothesis was that glenoids with biconcavity (B2) would be associated with worse outcomes (functional scores and complications) than B1 glenoids. Materials and methods We retrospectively analyzed prospectively collected data on 112 anatomic total shoulder arthroplasties (104 patients) with B glenoids. Preoperative computed tomography identified 64 B1 glenoids and 48 B2 glenoids (50 and 37 available for follow-up). Results A significant difference between B1 and B2 glenoids was noted in average retroversion (11° vs. 16°; P  
ISSN:1058-2746
1532-6500
DOI:10.1016/j.jse.2015.05.052