Journal
EUROPEAN JOURNAL OF ORTHOPAEDIC SURGERY AND TRAUMATOLOGY
Volume 33, Issue 4, Pages 961-969Publisher
SPRINGERNATURE
DOI: 10.1007/s00590-022-03233-y
Keywords
Shoulder instability; Shoulder arthroplasty; Anatomic total shoulder arthroplasty; Reverse total shoulder arthroplasty
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This study evaluated the impact of prior shoulder instability surgery on the outcomes and complications of primary anatomical total shoulder arthroplasty and reverse total shoulder arthroplasty. The results showed that patients who had previous shoulder instability surgery achieved improved pain and function after total shoulder arthroplasty, without an increased risk of complications or revision surgery.
Purpose To evaluate the effect of prior anterior shoulder instability surgery (SIS) on the outcomes and complications of primary anatomic total shoulder arthroplasty (aTSA) and reverse total shoulder arthroplasty (rTSA). Methods Between 2007 and 2018, 38 primary total shoulder arthroplasties (TSA) (22 aTSA and 16 rTSA) with a prior SIS and a minimum of 2 years of follow-up were identified. This cohort was matched 1:3 based on age, sex, body mass index, year of surgery, and dominant shoulder. aTSA and rTSA were matched to patients with primary osteoarthritis (OA) and rotator cuff tear arthropathy (CTA), respectively. Results TSA produced similar postoperative pain, ROM, patient-reported outcome measures, complications, and revisions in those with prior SIS vs. controls. aTSA with prior SIS demonstrated worse final postoperative abduction (116 degrees vs. 133 degrees; P = 0.046) and abduction improvement (24 degrees vs. 47 degrees; P = 0.034) compared to OA controls. Both aTSA and rTSA with prior SIS demonstrated significant improvements from baseline across all metrics, with no significant differences between the groups. aTSA and rTSA with prior SIS demonstrated no differences to controls in complications (4.6% vs. 6.1%; P = .786 and 0% vs. 6.3%. P = .183) or revisions (4.6% vs. 4.6%; P = .999 and 0% vs. 4.2%; P = .279). Conclusions TSA after prior SIS surgery can improve both pain and function without adversely increasing the rates of complications or revision surgery. When compared to patients without prior SIS, aTSA demonstrated worse abduction; however, all other functional differences remained statistically similar.
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