TY - JOUR

T1 - Outcome, revision rate and indication for revision following resurfacing hemiarthroplasty for osteoarthritis of the shoulder

T2 - 837 operations reported to the Danish Shoulder Arthroplasty Registry

AU - Rasmussen, J V

AU - Polk, A

AU - Sorensen, A K

AU - Olsen, Bo Sanderhoff

AU - Brorson, S

PY - 2014/4

Y1 - 2014/4

N2 - In this study, we evaluated patient-reported outcomes, the rate of revision and the indications for revision following resurfacing hemiarthroplasty of the shoulder in patients with osteoarthritis. All patients with osteoarthritis who underwent primary resurfacing hemiarthroplasty and reported to the Danish Shoulder Arthroplasty Registry (DSR), between January 2006 and December 2010 were included. There were 772 patients (837 arthroplasties) in the study. The Western Ontario Osteoarthritis of the Shoulder (WOOS) index was used to evaluate patient-reported outcome 12 months (10 to 14) post-operatively. The rates of revision were calculated from the revisions reported to the DSR up to December 2011 and by checking deaths with the Danish National Register of Persons. A complete questionnaire was returned by 688 patients (82.2%). The mean WOOS was 67 (0 to 100). A total of 63 hemiarthroplasties (7.5%) required revision; the cumulative five-year rate of revision was 9.9%. Patients aged < 55 years had a statistically significant inferior WOOS score, which exceeded the minimal clinically important difference, compared with older patients (mean difference 14.2 (8.8; 95% CI 19.6; p < 0.001), but with no increased risk of revision. There was no significant difference in the mean WOOS or the risk of revision between designs of resurfacing hemiarthroplasty.

AB - In this study, we evaluated patient-reported outcomes, the rate of revision and the indications for revision following resurfacing hemiarthroplasty of the shoulder in patients with osteoarthritis. All patients with osteoarthritis who underwent primary resurfacing hemiarthroplasty and reported to the Danish Shoulder Arthroplasty Registry (DSR), between January 2006 and December 2010 were included. There were 772 patients (837 arthroplasties) in the study. The Western Ontario Osteoarthritis of the Shoulder (WOOS) index was used to evaluate patient-reported outcome 12 months (10 to 14) post-operatively. The rates of revision were calculated from the revisions reported to the DSR up to December 2011 and by checking deaths with the Danish National Register of Persons. A complete questionnaire was returned by 688 patients (82.2%). The mean WOOS was 67 (0 to 100). A total of 63 hemiarthroplasties (7.5%) required revision; the cumulative five-year rate of revision was 9.9%. Patients aged < 55 years had a statistically significant inferior WOOS score, which exceeded the minimal clinically important difference, compared with older patients (mean difference 14.2 (8.8; 95% CI 19.6; p < 0.001), but with no increased risk of revision. There was no significant difference in the mean WOOS or the risk of revision between designs of resurfacing hemiarthroplasty.

KW - Adult

KW - Age Factors

KW - Aged

KW - Aged, 80 and over

KW - Female

KW - Hemiarthroplasty

KW - Humans

KW - Joint Prosthesis

KW - Kaplan-Meier Estimate

KW - Male

KW - Middle Aged

KW - Osteoarthritis

KW - Prosthesis Design

KW - Prosthesis Failure

KW - Registries

KW - Reoperation

KW - Shoulder Joint

KW - Treatment Outcome

KW - Young Adult

U2 - 10.1302/0301-620X.96B4.31850

DO - 10.1302/0301-620X.96B4.31850

M3 - Journal article

C2 - 24692621

VL - 96-B

SP - 519

EP - 525

JO - Journal of Bone and Joint Surgery: British Volume

JF - Journal of Bone and Joint Surgery: British Volume

SN - 2049-4394

IS - 4

ER -