Clinical trial Recruiting at 1 site Interventional Ages 18 to 65

Weight loss surgery before knee replacement for obese patients

Official title: Optimal Management of Extreme Obesity and Severe Knee Osteoarthritis Feasibility Trial

Run by Nova Scotia Health Authority · NCT05120492 · Data updated 2026-11-12

This study tests if having weight loss surgery before knee replacement helps obese patients with severe knee arthritis recover better and have fewer problems after surgery.

Quick facts

Study typeInterventional
Ages18 Years to 65 Years
SexAll
Enrollment20 (estimated)
SponsorNova Scotia Health Authority
Academic / other
Locations1 site (Halifax, Nova Scotia)
StatusRecruiting
StartedApril 22, 2022
Main results expectedJuly 2027
Study endsJuly 2027
Registry record updatedAugust 21, 2024
Trial IDNCT05120492 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are individuals with severe knee osteoarthritis and a BMI between 45 and 60.

Probably not a fit

Patients who have previously undergone knee replacement surgery or have significant comorbidities may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This trial investigates whether undergoing weight loss surgery prior to total knee replacement improves surgical outcomes for patients with severe knee osteoarthritis and a body mass index (BMI) between 45 and 60. Participants are randomly assigned to either receive dietary and lifestyle counseling followed by knee replacement or to undergo sleeve gastrectomy followed by the same knee replacement procedure. The study aims to assess the feasibility and effectiveness of this approach over a period of 9 to 13 months.

Why it matters

Potential benefit: If successful, this approach could lead to improved recovery and outcomes for patients undergoing knee replacement surgery.

How similar studies have gone: While this approach is innovative, similar studies have shown promising results in improving outcomes for obese patients undergoing orthopedic surgeries.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

severe knee osteoarthritis body-mass index of 45 to 60

Exclusion Criteria:

previous total replacement of the same knee, a need for bilateral total knee replacement, and knee pain during the previous week that the patient rated at higher than 60 mm on a 100-mm visual-analogue scale. Also,prior bariatric or complex foregut surgery, significant cardiovascular, pulmonary, renal, liver, gastrointestinal, psychiatric disorders, pregnancy, malignancy within last 5 years, anemia, coagulopathy requiring anti-coagulation therapy.

Where it's running

  • Nova Scotia Health
    Halifax, Nova Scotia, Canada
    Recruiting

Similar studies

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.