Total knee arthroplasty (TKA) is a surgical procedure commonly conducted for patients with end-stage knee osteoarthritis, often leading to improved pain relief and function. However, for patients that have suffered an associated periprosthetic fracture, a broken bone that occurs around the implant of a TKA, they may receive sub-optical care due to a lack of a trustworthy assessments for component fixation and fracture healing in the literature. The prevalence of TKA surgeries is increasing annually and is projected to rise further due to an ageing population and obesity issue. By extension to this primary surgery, more Canadians will require an invasive revision surgery that risks patient morbidity and mortality. Thus, it is imperative to set a standard for fixation and bone healing assessments to lessen revision burdens and improve patient outcomes. CT imaging can effectively visualize areas of incomplete bone ingrowth that may be hidden from overlapping anatomy on plain radiographs, which remains the go-to imaging modality for orthopaedic surgeons to assess periprosthetic fracture healing. The purpose of this prospective cross-sectional study is to examine the efficacy of weight-bearing CT as a diagnostic tool for 20 participants who experienced a distal femur periprosthetic fracture and underwent revision surgery using a fracture fixation plate and screws. Participants will be scanned under loaded and unloaded conditions. Radiographic outcomes will be evaluated, including bone segment displacement and its relation to participants' reports of pain.
Age range
50 Years – 90 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Maximum Total Point Motion of Fracture Segments from Conventional CT scans
Timeframe: 1 visit is only required for which the outcome measure will then be assessed. Through study completion, approximately of 1 year.
Maximum Total Point Motion of Fracture Segments from Conventional CT scans
Timeframe: 1 visit is only required for which the outcome measure will then be assessed. Through study completion, approximately of 1 year.
Western Ontario and McMaster Universities Arthritis Index (WOMAC) Questionnaire
Timeframe: 1 visit is only required for which the outcome measure will then be assessed. Through study completion, approximately of 1 year.
The Knee Society Score (KSS) Questionnaire
Timeframe: 1 visit is only required for which the outcome measure will then be assessed. Through study completion, approximately of 1 year.
UCLA Activity Score Guideline Questionnaire
Timeframe: 1 visit is only required for which the outcome measure will then be assessed. Through study completion, approximately of 1 year.