Mid- to long-term clinical and radiological results of anatomic total shoulder arthroplasty in patients with B2 glenoids

• Published in: JSES international 2023-05, Vol.7 (3), p.464-471
• Main Authors: Hinse, Stephanie, Pastor, Torsten, Hasler, Anita, Ernstbrunner, Lukas, Wieser, Karl, Gerber, Christian
• Format: Article
• Language: English
• Subjects: Anatomical total shoulder arthroplasty; Glenohumeral osteoarthritis B2 glenoid; Humeral subluxation; Mid-term results; Posterior glenoid deficiency; Shoulder
• ISSN: 2666-6383; 2666-6383
• DOI: 10.1016/j.jseint.2023.01.006

Eccentric biconcave (B2) glenoid erosion in primary glenohumeral arthritis is common. There are serious concerns regarding the longevity of fixation of cemented glenoids if anatomic total shoulder arthroplasties (aTSAs) are used in B2 glenoid. The purpose of this study is to analyze the mid- to long-term results of aTSA with B2 glenoids. This is a retrospective study of a single center experience. Thirty patients (32 shoulders) at an average of 9.2 years (range, 5.0-16.6, ±3.2) after primary TSA were evaluated. Clinical and radiographic outcomes were analyzed. The mean preoperative intermediate glenoid version was −14° ± 7° (range, −2° to −29°) and the mean humeral subluxation according to the plane of the scapula was 67% ± 9% (range, 49%-87%). There was a significant improvement for all the postoperative clinical outcome parameters including the mean absolute and relative Constant Score, subjective shoulder value, active elevation, external rotation, abduction, internal rotation, pain scores, and strength (P