Weight-Bearing CT and Conventional Periprosthetic Distal Knee Fractures

Launched by LONDON HEALTH SCIENCES CENTRE RESEARCH INSTITUTE OR LAWSON RESEARCH INSTITUTE OF ST. JOSEPH'S · Mar 27, 2025

Keywords

ClinConnect Summary

This clinical trial is studying a new imaging technique called weight-bearing CT to see how well it can assess healing in patients who have experienced a specific type of fracture around their knee implant, known as a periprosthetic fracture. After having knee replacement surgery, some patients may suffer from these fractures, which can complicate their recovery. This study aims to improve the way doctors evaluate bone healing and alignment in these patients, potentially leading to better treatment outcomes and fewer surgeries in the future.

To participate, individuals need to be between 50 and 90 years old and have had revision surgery for a specific type of knee fracture related to their knee implant. They should also have a body mass index (BMI) of up to 40 and be able to provide informed consent, meaning they understand the study and agree to take part. During the trial, participants will undergo CT scans while standing and sitting to check their bone healing and report any pain they feel. By taking part in this study, individuals can contribute to improving care for others in similar situations.

Gender

ALL

Eligibility criteria

• Inclusion Criteria:
• • Underwent revision surgery for repair of a distal femur fracture surrounding a primary TKA femoral component using a fracture fixation plate \>1 year
• • Age 50-90 years
• • Body mass index up to 40kg/m2
• • Able to provide informed consent
• • Able and willing to do study assessments and follow instructions
• Exclusion Criteria:
• • Does not understand English
• • Undergone revision surgery for any other indication
• • Received Intramedullary nail or distal femur replacement
• • Cannot independently stand on one leg in the weight-bearing CT during the inducible displacement exam