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dc.contributor.authorThanat Kanthawangen_US
dc.contributor.authorAustin Leeen_US
dc.contributor.authorJoe Darryl Baalen_US
dc.contributor.authorGabby B. Josephen_US
dc.contributor.authorThomas Vailen_US
dc.contributor.authorThomas M. Linken_US
dc.contributor.authorRina Patelen_US
dc.description.abstract© 2020, ISS. Objective: To investigate the associations between clinical, procedural, and radiographic factors and outcomes of steroid hip injections, including long-term and immediate pain reduction, time to arthroplasty, time to reinjection, and the total number of injections. Materials and methods: All intra-articular anesthetic and steroid injections of the hip under fluoroscopic guidance between January 2014 and March 2016 were retrospectively reviewed. Hip radiographs were scored using the Kellgren–Lawrence (KL) and Osteoarthritis Research Society International (OARSI) scores. Immediate pain relief and response were evaluated using a change in visual analog scale and OMERACT-OARSI criteria respectively. Long-term pain relief was evaluated at 2‑7 months after injection by reviewing the medical records. Correlation between patient characteristics, procedural variations, and radiographic factors with injection outcomes was analyzed by using linear and logistic regression models. Results: Of 361 injections, 79.8% showed an immediate pain response and 32.7% had subjective long-term pain relief (> 2 months). There was no significant correlation between immediate pain relief and response with long-term pain relief and other outcomes. Older age and higher KL score, OARSI-central joint space narrowing (JSN), and inferior acetabular osteophyte were correlated with long-term pain relief (p = 0.01‑0.03). Higher KL and OARSI grades, particularly JSN, were significantly correlated with increased immediate pain relief and total number of injections but decreased time to arthroplasty. Baseline pain positively correlated with immediate pain response (p < 0.001). Conclusions: Older patients with higher grades of radiographic OA and high baseline pain were good candidates for steroid injections, particularly for those patients awaiting hip arthroplasty.en_US
dc.titlePredicting outcomes in patients undergoing intra-articular corticosteroid hip injectionsen_US
article.title.sourcetitleSkeletal Radiologyen_US of California, San Franciscoen_US Mai Universityen_US
Appears in Collections:CMUL: Journal Articles

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