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IS IT THE STEROID OR THE PRESERVATIVE PART OF THE DRUG THAT IS RESPONSIBLE FOR STEROID FLARE FOLLOWING PERI-ARTICULAR INJECTION THERAPY?



Abstract

This was a double-blind randomised controlled study. The objective of this study was to determine the cause of post-injection pain after peri-articular steroid injection. Approval for this study was granted by the hospital’s Ethics Committee. Selection criteria included all patients undergoing a peri-articular injection under the care of the senior author. Patients who elected to be in this study gave their consent following a detailed explanation of the study and provision of a patient information leaflet. The enrolled patients were randomised into one of two groups. Group A received a standard triamcinolone acetonide injection mixed with bupivicaine. Group B patients received triamcinolone acetonide without the preservative part of the drug and bupivicaine. Both the patient and the surgeon were unaware which group the patient was selected to be in. Patients’ scores were recorded using visual analogue scales and pain severity scores prior to injection and 4 days following injection. Inflammatory signs were also recorded at 4 days post-procedure. A total of 52 patients were enrolled. Pain scores reduced by 46% in group A and 43% in group B. Inflammatory signs occurred in 26% less cases when group B was compared with group A, however this was not statistically significant.

The abstracts were prepared by Emer Agnew, Secretary to the IOA. Correspondence should be addressed to him at Irish Orthopaedic Association Secretariat, c/o Cappagh National Orthopaedic Hospital, Finglas, Dublin 11, Ireland.