Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 8/22/2025

Methotrexate Continuation During Minor Surgery for Rheumatoid Arthritis Patients

Evidence for Continuing Methotrexate During Surgery

  • The 2022 American College of Rheumatology (ACR) conditionally recommends continuing the usual dosing of methotrexate through surgery for patients with rheumatoid arthritis undergoing total hip or knee arthroplasty 1
  • The American College of Rheumatology recommends that continuing DMARDs like methotrexate is associated with a decreased risk of infections (relative risk 0.39, 95% CI 0.17-0.91) based on low to moderate quality evidence 3
  • The British Association of Dermatologists' guidelines support that methotrexate can be continued during the perioperative period when it is controlling an individual's disease 4, 5
  • Multiple randomized controlled trials have demonstrated that continuing methotrexate during orthopedic surgery does not increase infection risk and actually reduces the frequency of rheumatoid arthritis flares postoperatively 6, 7

Benefits of Continuing Methotrexate

  • Patients who continue methotrexate during surgery experience significantly fewer rheumatoid arthritis flares compared to those who discontinue the medication 7
  • Continuing methotrexate helps maintain disease control, which is crucial for optimal recovery and rehabilitation after surgery 6

Special Considerations and Exceptions

  • For patients with significant comorbidities that increase infection risk, the decision to continue methotrexate should be made on a case-by-case basis 5
  • The American College of Rheumatology recommends that biologic agents should be withheld prior to surgery according to their dosing cycle 1, 3
  • Patients on JAK inhibitors should withhold these medications for at least 3 days prior to surgery 1
  • If methotrexate is withheld for any reason, it should be restarted once the wound shows evidence of healing, typically around 14 days post-surgery 1

Practical Approach

  • For minor surgery in RA patients, the American College of Rheumatology recommends continuing the regular methotrexate dosing schedule without interruption 1, 4
  • The British Association of Dermatologists recommends maintaining the patient's usual folic acid supplementation (at least 5 mg weekly) 8
  • For patients on multiple immunosuppressive medications, consider the cumulative immunosuppressive effect when making decisions about perioperative medication management 4

REFERENCES