Opioid Requirements Post Discharge of Patients Having Total Knee Arthroplasty (TKA)
Study Details
Study Description
Brief Summary
Total knee arthroplasty (TKA) may result in significant postoperative pain. The majority of these patients are prescribed opioids for the management of postoperative pain. Recent evidence has highlighted that postoperative opioids are being over-prescribed resulting in opioid misuse and abuse. Over-prescribing also results in a significant financial cost. This prospective observational study was designed to determine the mean amount of opioid required after TKA. This data can be used in the future as a guide to change our current practice of prescribing with the aim to reduce over-prescription.
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Detailed Description
Over prescription of opioids is currently a National epidemic . There is a call for action to address this problem urgently and anesthesiologists are well positioned to participate and lead through research to educate medical practitioners of how to prescribe the optimal dose with the ultimate goal of improved patient's safety.
Total knee arthroplasy (TKA) and total hip arthroplasty (THA) may result in significant and sustained postoperative pain. For optimal pain control, faster recovery, and better functional rehabilitation, these patients are prescribed opioids in addition to analgesic adjuncts in hospital and after discharge from the hospital. This practice stems from much evidence that demonstrated a propensity for moderate and severe pain of 52% and 16% respectively up to 30 days post discharge in patients undergoing THA and TKA.
These patients are prescribed opioids upon discharge from the hospital to control pain and to enhance optimal rehabilitation. The discharge prescription is often based on a surgeon's judgment and past experience. Furthermore, more than 50% of patients may receive suboptimal pain control resulting in pain in the early postoperative period. On the other hand, recent studies have shown that opioids are often over-prescribed. This practice not only results in a significant financial cost, but also represents a potential reservoir for opioid misuse and abuse. In Canada, the rate of dispensing high-dose opioid formulations (greater than 200mg morphine equivalents per day) increased 23.0%, from 781 units per 1000 population in 2006 to 961 units per 1000 population in 2011. Excessive opioid prescriptions can lead to excessive morbidity and mortality as evidenced in the United States where 16 917 (74%) of the 22,810 deaths relating to pharmaceutical overdose involved opioid analgesics. With respect to the financial burden, in the United States in 2007, prescription opioid abuse costs were $55.7 billion of which 45% were healthcare costs (e.g., abuse treatment).
To the author's knowledge there are no widely used objective tools or guidelines to instruct patients in self-administering opioids post-discharge or to help surgeons to avoid over or under prescribing. This may contribute to either over-dosing with opioid related side effects, or under-dosing with inadequate analgesia and rehabilitation.
In this prospective observational study we plan to determine the mean amount of opioid required post discharge after TKA that correlates with good pain management and rehabilitation outcomes. The mean amount of opioid consumed could be used in the future to guide physicians to practice proper opioid prescribing post discharge from hospital.
Study Design
Outcome Measures
Primary Outcome Measures
- The amount of opioid analgesics used and the number remaining [6 weeks after surgery]
A member of the research team will contact the participant weekly after their surgery. Over the phone the team member will collect the total amount of opioid taken and the total amount of opioid remaining.
Secondary Outcome Measures
- The amount of non-opioid analgesics consumed [6 weeks after surgery]
The team member will contact the participant weekly to ask about the number of other non-opioid analgesics consumed.
Eligibility Criteria
Criteria
Inclusion Criteria:
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18 years or older
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Having an elective total knee replacement done at Sunnybrook Holland Orthopaedic and Arthritic Centre.
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All participants must speak English and have no communication barriers.
Exclusion Criteria:
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If you are taking >10mg morphine equivalents per day
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Deemed incompetent to be able to self prescribe opioids.
Contacts and Locations
Locations
| Site | City | State | Country | Postal Code | |
|---|---|---|---|---|---|
| 1 | Sunnybrook Health Sciences Centre | Toronto | Ontario | Canada | M4Y 1H1 |
Sponsors and Collaborators
- Sunnybrook Health Sciences Centre
Investigators
- Principal Investigator: Imad Awad, MBChB, Sunnybrook Health Sciences Centre
Study Documents (Full-Text)
None provided.More Information
Publications
- Alam A, Juurlink DN. The prescription opioid epidemic: an overview for anesthesiologists. Can J Anaesth. 2016 Jan;63(1):61-8. doi: 10.1007/s12630-015-0520-y. Epub 2015 Oct 27. Review.
- Andersen LØ, Gaarn-Larsen L, Kristensen BB, Husted H, Otte KS, Kehlet H. Subacute pain and function after fast-track hip and knee arthroplasty. Anaesthesia. 2009 May;64(5):508-13. doi: 10.1111/j.1365-2044.2008.05831.x.
- Barrington JW, Halaszynski TM, Sinatra RS, Expert Working Group On Anesthesia And Orthopaedics Critical Issues In Hip And Knee Replacement Arthroplasty FT. Perioperative pain management in hip and knee replacement surgery. Am J Orthop (Belle Mead NJ). 2014 Apr;43(4 Suppl):S1-S16.
- Binkley JM, Stratford PW, Lott SA, Riddle DL. The Lower Extremity Functional Scale (LEFS): scale development, measurement properties, and clinical application. North American Orthopaedic Rehabilitation Research Network. Phys Ther. 1999 Apr;79(4):371-83.
- Birnbaum HG, White AG, Schiller M, Waldman T, Cleveland JM, Roland CL. Societal costs of prescription opioid abuse, dependence, and misuse in the United States. Pain Med. 2011 Apr;12(4):657-67. doi: 10.1111/j.1526-4637.2011.01075.x. Epub 2011 Mar 10.
- Buckley N. The prescription opioid epidemic: a call to action for our profession. Can J Anaesth. 2016 Jan;63(1):8-11. doi: 10.1007/s12630-015-0521-x. Epub 2015 Oct 23.
- Gomes T, Mamdani MM, Paterson JM, Dhalla IA, Juurlink DN. Trends in high-dose opioid prescribing in Canada. Can Fam Physician. 2014 Sep;60(9):826-32.
- Kharasch ED, Brunt LM. Perioperative Opioids and Public Health. Anesthesiology. 2016 Apr;124(4):960-5. doi: 10.1097/ALN.0000000000001012. Review.
- Maheshwari AV, Blum YC, Shekhar L, Ranawat AS, Ranawat CS. Multimodal pain management after total hip and knee arthroplasty at the Ranawat Orthopaedic Center. Clin Orthop Relat Res. 2009 Jun;467(6):1418-23. doi: 10.1007/s11999-009-0728-7. Epub 2009 Feb 13.
- Manchikanti L, Fellows B, Ailinani H, Pampati V. Therapeutic use, abuse, and nonmedical use of opioids: a ten-year perspective. Pain Physician. 2010 Sep-Oct;13(5):401-35.
- Rawal N. Postoperative pain treatment for ambulatory surgery. Best Pract Res Clin Anaesthesiol. 2007 Mar;21(1):129-48. Review.
- Roberts M, Brodribb W, Mitchell G. Reducing the pain: a systematic review of postdischarge analgesia following elective orthopedic surgery. Pain Med. 2012 May;13(5):711-27. doi: 10.1111/j.1526-4637.2012.01359.x. Epub 2012 Apr 11. Review.
- Rodgers J, Cunningham K, Fitzgerald K, Finnerty E. Opioid consumption following outpatient upper extremity surgery. J Hand Surg Am. 2012 Apr;37(4):645-50. doi: 10.1016/j.jhsa.2012.01.035. Epub 2012 Mar 10.
- Skinner HB, Shintani EY. Results of a multimodal analgesic trial involving patients with total hip or total knee arthroplasty. Am J Orthop (Belle Mead NJ). 2004 Feb;33(2):85-92; discussion 92.
- Wainwright AV, Kennedy DM, Stratford PW. The Group Experience: Remodelling Outpatient Physiotherapy after Knee Replacement Surgery. Physiother Can. 2015 Fall;67(4):350-6. doi: 10.3138/ptc.2014-44.
- 309-2016