Reliability of the TAL in positioning the Acetabular Component in THA
Research type
Research Study
Full title
Reliability of the Transverse Acetabular Ligament in positioning the Acetabular Component in Total Hip Arthroplasty
IRAS ID
216002
Contact name
Richie Gill
Contact email
Sponsor organisation
North Bristol NHS Trust
Duration of Study in the UK
0 years, 2 months, 30 days
Research summary
The aim of the proposed study is to determine the reliability of the Transverse acetabular ligament , as a landmark for acetabular component positioning in Primary Total Hip Arthroplasty. We aim to do so by comparing the intra-operative and intra-observer reliability for using the TAL as a landmark for cup positioning, and compare the cup position if it were placed in line with the TAL, with our final position based on our clinical judgment.
A 3D camera set will be mounted in theatres, the purpose of which would be to capture and record the various positions of the trial cup during surgery.
Before acetabular preparation, the TAL will be identified, a trial cup will be positioned by the surgeon in line with the TAL and the 3D camera will record the position. The same surgeon will repeat that procedure twice more and the camera will capture the position each time. Placing a trial cup is standard operative procedure, this trial may be repositioned during surgery if placement is not deemed satisfactory by the surgeon. This is a safe and established technique, it is envisaged that the operation will only be minimally delayed <5mins for the capture of images. The camera will be positioned in such a way as to not hinder the operating surgeon or decrease the sterility of the procedure.
After acetabular preparation and cup implantation, the 3D camera will capture the final cup position.REC name
South Central - Berkshire B Research Ethics Committee
REC reference
16/SC/0691
Date of REC Opinion
20 Jan 2017
REC opinion
Further Information Favourable Opinion