Orthopedic surgery patients can recover just as well without using opioid-based painkillers

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Patients can recover from orthopedic surgery just as well without using opioid-based painkillers, says a McMaster University and Hamilton Health Sciences (HHS) study published by the Journal of the American Medical Association (JAMA).

Study results showed that by prescribing a combination of three non-opioid painkillers to patients, researchers successfully reduced approximately tenfold the amounts of opioids consumed over a six-week post-operative period, without altering their pain levels.

Co-principal investigator Olufemi Ayeni and his team gleaned their results by enrolling 193 patients between March 2021 and March 2022 from three Hamilton hospitals including HHS' McMaster University Medical Centre and Hamilton General Hospital, and St. Joseph's Healthcare Hamilton.

The patients were randomly assigned to either a control group of 98 receiving standard opioid-based painkillers or an opioid-free group (93) receiving a combination therapy of naproxen, acetaminophen and pantoprazole and a patient educational infographic. The opioid-free group did have access to opioid medication if required for pain. Each patient undergoing outpatient knee or shoulder arthroscopic surgery was monitored for six weeks after their operation.

After the six weeks, those in the control group had had an average of 72.6 mg of opioids, compared to 8.4 mg in the opioid-sparing group. Six patients in the control group and two patients in the opioid-sparing group asked for opioid medication after discharge. Difference in pain scores, patient satisfaction with care and number of adverse events were not significantly different.

This study clearly shows that many of these surgical patients can be treated safely without opioid medications in a select population."

Olufemi Ayeni, Professor of Surgery at McMaster and Orthopedic Surgeon at HHS

"Furthermore, by reducing the number of opioids prescribed, we can collectively reduce the development of a reservoir of unused medications that can cause harm to many in society," he said.

"By one estimate, there are at least 100,000 of these surgeries in Canada annually, meaning that shifting prescription practices to reduce opioid use can reduce patient exposure and, by extension, the potential for dependency on opioids."

By comparison, Ayeni said more than one million orthopedic surgeries were performed annually in the United States from 2006 to 2016.

Opioids remain the post-operative painkiller of choice for orthopedic specialists on both sides of the border, but North America's ongoing opioid epidemic is forcing a rethink among clinicians, Ayeni said, adding that orthopedic specialists at times prescribe more opioids than recommended by medical guidelines.

Ayeni said that by switching to non-opioid painkillers after surgery, surgeons can play their part in combatting the ongoing opioid epidemic and reduce the risk of dependency in patients recovering from orthopedic surgery.

Funding for the study was received from Physician Services Incorporated and Hamilton Health Sciences New Investigator Fund.

Source:
Journal reference:

The NO PAin Investigators., (2022) Effect of a Postoperative Multimodal Opioid-Sparing Protocol vs Standard Opioid Prescribing on Postoperative Opioid Consumption After Knee or Shoulder Arthroscopy A Randomized Clinical Trial. JAMA. doi.org/10.1001/jama.2022.16844.

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