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An evaluation of a revised analgesia protocol for elective joint arthroplasty

Ir Med J. 2026 Jun 18;119(6):108.

ABSTRACT

AIMS: Mayo University Hospital performs approximately 350 joint arthroplasty surgeries per annum. We revised our analgesia protocol in 2024 based on best current practice.

METHODS: We conducted this evaluation from January to July 2025. All patients presenting for joint arthroplasty surgeries were invited to be included.

RESULTS: Our evaluation included 147 patients; 94 patients had a total hip arthroplasty and 53 had a total knee arthroplasty. The average age was 69 years, and 142 (96.5%) of patients were living at home independently before surgery. 53 (36%) were on prescribed analgesics pre-operatively. The average pain score on day 1 (day after surgery) was 4.8 for the hip arthroplasty patients and 5.5 for the knee arthroplasty patients. The total oral morphine equivalent requirements for the first 2 days were 48 mgs for the hip surgery patients and 65 mgs for the knee surgery patients. The median length of stay for all patients was 4 days. On follow up at 6 weeks, 135 (91%) of patients were mobilising independently. Overall satisfaction of the patient’s experience (0-10) was 8.7 for the knee arthroplasty patients and 8.8 for the hip arthroplasty patients.

DISCUSSION: Overall, we were satisfied with our analgesic protocol, but we want to improve the day 1 and 2 pain scores particularly in the knee arthroplasty patients. We are discussing the introduction of adductor canal blocks pre-operatively.

PMID:42348181

By Nevin Manimala

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