Abstract：
BACKGROUND:Reverse shoulder arthroplasty leads to arm lengthening. Different techniques have been described to determine postoperative lengthening. The purpose of this study was to evaluate the reliability of the acromiohumeral distance (AHD) in determining arm lengthening after reverse shoulder arthroplasty. METHODS:At 2 centers, 44 patients who had received an onlay design reverse shoulder arthroplasty were observed for a minimum of 6 months. Examination followed a standardized protocol including preoperative and postoperative radiographs on anteroposterior view in neutral rotation. Two orthopedic surgeons independently performed the measurements in random order. RESULTS:Mean arm lengthening averaged 2.5 cm (range, 0.3-3.9 cm) according to AHD measurement. Significant differences in interobserver and intraobserver variability for postoperative AHD measurements were found (P < .01). The mean intrapatient difference was 0.5 cm (range, 0.02-1.5 cm). CONCLUSION:According to our study, the AHD is not a reliable measurement technique to determine arm lengthening after reverse shoulder arthroplasty.
journal_name
J Shoulder Elbow Surgjournal_title
Journal of shoulder and elbow surgeryauthors
Werner BS,Jacquot A,Molé D,Walch Gdoi
10.1016/j.jse.2016.02.017subject
Has Abstractpub_date
2016-09-01 00:00:00pages
e276-80issue
9eissn
1058-2746issn
1532-6500pii
S1058-2746(16)00125-7journal_volume
25pub_type
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