Clinical trial Recruiting at 1 site Observational Ages 18 and up

Understanding the impact of wait times on hip and knee replacement patients

Official title: The WHERE Study: Waiting for Hip and KneE REplacement - A Prospective Cohort

Run by London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's · NCT06074900 · Data updated 2026-11-12

This study looks at how wait times for hip and knee replacements affect patients' health and recovery to help create better care plans for them.

More Knee Osteoarthritis trials

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment3008 (estimated)
SponsorLondon Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's
Academic / other
Locations1 site (London, Ontario)
StatusRecruiting
StartedJuly 13, 2023
Main results expectedDecember 2025
Study endsDecember 2026
Registry record updatedMarch 11, 2025
Trial IDNCT06074900 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are adults aged 18 and older with primary osteoarthritis of the hip or knee.

Probably not a fit

Patients with arthritis other than osteoarthritis, previous joint replacements, or those unable to provide informed consent 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 observational study aims to investigate the relationships between wait times for total hip and knee replacements and various patient characteristics, including sex, gender, socioeconomic status, and psychological distress. By tracking patients awaiting these surgeries, the study seeks to identify those at high or low risk of deterioration in their condition. The goal is to develop targeted care plans that address the needs of patients based on their unique trajectories of symptoms and recovery. This prospective cohort study will provide valuable insights into how wait times affect patient outcomes and inform better management of surgical waitlists.

Why it matters

Potential benefit: If successful, this study could lead to improved care strategies for patients awaiting hip and knee replacements, ultimately enhancing their recovery and quality of life.

How similar studies have gone: While some studies have explored similar themes, this prospective longitudinal approach to understanding wait times and patient outcomes in TJR is relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Aged 18 years and older;
2. Primary OA of the hip or knee (as defined by the American College of Rheumatology)60,61;
3. Provision of informed consent

Exclusion Criteria:

1. Hip or knee arthritis other than OA;
2. Previous TJR or retained hardware on the ipsilateral side;
3. Refusal to participate;
4. Inability to provide informed consent;
5. Likely to have problems maintaining follow-up in the opinion of the investigator (i.e. no fixed address, severe mental disorders or additions without adequate support
6. Inability to speak or understand English without a registered interpreter

Where it's running

  • London Health Sciences Centre
    London, Ontario, Canada
    Recruiting

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

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.