Àá½Ã¸¸ ±â´Ù·Á ÁÖ¼¼¿ä. ·ÎµùÁßÀÔ´Ï´Ù.
KMID : 1036220230260040357
Clinics in Shoulder and Elbow
2023 Volume.26 No. 4 p.357 ~ p.365
Concomitant open distal clavicle excision is associated with greater improvement in range of motion without increased risk of acromial stress fracture after reverse total shoulder arthroplasty: a retrospective cohort study
Ajay C. Kanakamedala

Dhruv S. Shankar
Neil Gambhir
Matthew R. Boylan
Michael Boin
Matthew G. Alben
Mandeep S. Virk
Young W. Kwon
Abstract
Background: The purpose of this study was to evaluate the effect of concomitant open distal clavicle excision (DCE) on postoperative clinical outcomes and incidence of acromial and scapular stress fractures (ASFs) in patients with symptomatic acromioclavicular joint osteoarthritis (ACJ OA) undergoing reverse total shoulder arthroplasty (RTSA).
Methods: A single-surgeon retrospective cohort study was conducted including patients who underwent primary elective RTSA with or without DCE from 2015 to 2019 with a minimum 6-month follow-up period. Shoulder active range of motion (AROM) and visual analog scale (VAS) pain were recorded preoperatively and postoperatively. ASFs and other adverse events were identified using postoperative notes and/or radiographs. Characteristics and outcomes were compared between the RTSA and RTSA-DCE groups.

Results: Forty-six RTSA patients (mean age, 67.9¡¾8.7 years; 60.9% male; mean follow-up, 24.9¡¾16.6 months) and 70 RTSA-DCE patients (mean age, 70.2¡¾8.9 years; 20.0% male; mean follow-up, 22.7¡¾12.9 months) were included. There were no significant intergroup differences in rates of ASF (RTSA, 0.0% vs. RTSA-DCE, 1.4%; P=1.00), stress reactions (RTSA, 8.7% vs. RTSA-DCE, 11.4%; P=0.76), reoperation, revision, or infection (all P>0.05), or in pre-to-postoperative reduction in VAS pain (P=0.17) at latest follow-up. However, the RTSA-DCE group had greater pre-to-postoperative improvement in flexion AROM (RTSA, 43.7¡Æ¡¾38.5¡Æ vs. RTSA-DCE, 59.5¡Æ¡¾33.4¡Æ; P=0.03) and internal rotation (IR) AROM (P=0.02) at latest follow-up.

Conclusions: Concomitant DCE in RTSA improves shoulder flexion and IR AROM, alleviates shoulder pain, and does not increase the risk of ASFs. Level of evidence: III.
KEYWORD
Arthroplasty, Replacement, Shoulder, Osteoarthritis, Acromioclavicular joint, Rotator cuff tear arthropathy
FullTexts / Linksout information
Listed journal information