A comparison of x-ray imaging and low-dose computed tomography (CT) scans for ankle imaging following surgery (total ankle replacements -TARs).
A Comparative Analysis of Six Week Postoperative Ankle X-rays and Low-Dose Computed Tomography (CT) Scans for Evaluation of Total Ankle Replacement Complications, Prosthesis Alignment and the Radiation Dose Delivered.
The University of Auckland
30 participants
Aug 14, 2024
Interventional
Conditions
Summary
The purpose of this project is to compare ankle x-ray imaging and low-dose computed tomography (CT) scans for the evaluation of total ankle replacements after surgery. Currently, ankle x-rays are performed six weeks following surgery. They are sub-optimal due to how the images are taken and presented and generally require several attempts before the correct image is obtained. With the current advanced technology of CT, three-dimensional imaging can be obtained at a low dose. CT scans could potentially assess the alignment of the implant more accurately, identify more complications and/or identify complications more quickly.
Eligibility
Inclusion Criteria1
- All patients undergoing a total ankle replacement surgery at Mercy Hospital Dunedin (New Zealand) or Te Whata Ora Southern between the 29th of July 2024 and the 2nd of April 2025. This is the timeframe of the study. All patients having a TAR during this time will have the opportunity to participate in the study. Patients must be 18 years or older. Patients must be able and willing to give informed consent.
Exclusion Criteria1
- Pregnant women will be excluded from the study due to radiation dose concerns. However, this is unlikely as most patients expect to be past child-bearing age. Patients who are unable/unwilling to give consent. Patients who have been exposed to a large amount of radiation previously.
Interested in this trial?
Get notified about updates and connect with the research team.
Interventions
Condition observed: Patients undergoing Total Ankle Replacement (TAR) surgery. Exposure: Post-operative imaging with low dose CT scan. Brief name: Low Dose CT imaging. Procedure/Activities: Observation of patients undergoing post-operative ankle CT imaging. Who delivers the Intervention: Radiographer (Medical Imaging Technologist) will acquire the images and the radiologist will report the images. Mode of Delivery: In-person, in the hospital Radiology Department. Number of times delivered: Once, at six weeks following surgery. Location: Mercy Hospital, Radiology Department Duration of Observation: the CT scan is expected to last about 10 mins. Scan Procedures for Participants X-ray Imaging -Participants will be positioned to get clear images of their ankles. This usually means standing on a flat surface, sometimes with slight adjustments to angle the foot properly. - The X-ray process is quick, usually just a few minutes. CT Imaging - Participants will lie on a table that slides into the CT scanner. - The scanner takes detailed cross-sectional images of the ankle. - The process is non-invasive and takes about 10-15 minutes. No injection of tracer/imaging agents will be used. Monitoring Adherence Electronic Medical Records (EMRs) - We'll use EMRs to track and document all your imaging procedures. - This includes recording dates and times of scans Follow-ups - Patients will have a scheduled follow-up visit approximately one week following their imaging to ensure the post-operative imaging is completed and to discuss any findings with their surgeon. - Our study coordinator will send reminders and check in to ensure everything is on track.
Locations(1)
View Full Details on ANZCTR
For the most up-to-date information, visit the official listing.
ACTRN12624000724572