Total Hip Replacement Clinical Trial
— EXACTOfficial title:
Evaluation of X-ray, Acetabular Guides and CT in THR
NCT number | NCT03072706 |
Other study ID # | RK174116 |
Secondary ID | |
Status | Completed |
Phase | N/A |
First received | |
Last updated | |
Start date | November 7, 2017 |
Est. completion date | June 26, 2020 |
Verified date | August 2020 |
Source | University Hospitals Coventry and Warwickshire NHS Trust |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
Total hip replacement is one of the most successful surgical procedures of modern times, with
over 80,000 performed each year in the UK. However, up to 5% of all primary hip replacements
need to be revised within the first 10 years, and in many cases malposition of the acetabular
(hip socket) component is implicated in the early failure.
The standard method of positioning the acetabular component is for the surgeon to be guided
by a combination of the visible anatomical landmarks within the surgical field, and the wider
environment of the operating theatre. The advent of 3D printing has led to the development of
custom-made surgical guides which can be used during surgery, in order to assist the surgeon
in the positioning of instruments and devices. These surgical guides are manufactured based
on CT or MRI imaging, and are designed to clearly indicate to the surgeon the desired
location and orientation of bony cuts and implant positions.
This study will test the hypothesis that an acetabular alignment guide combined with
three-dimensional CT-based planning using the Corin OPS™ (Optimised Positioning System),
provides more accurate component alignment following primary total hip replacement compared
with the current standard treatment, with the aim of improving patient outcomes and reducing
the risk of complications of total hip replacement.
Status | Completed |
Enrollment | 54 |
Est. completion date | June 26, 2020 |
Est. primary completion date | June 26, 2020 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 18 Years to 70 Years |
Eligibility |
Inclusion Criteria: - All patients undergoing an elective primary unilateral total hip replacement (THR) under the care of an orthopaedic consultant at University Hospitals Coventry and Warwickshire NHS Trust - Provision of written informed consent. - Male or Female aged 18-70 years. - Able and willing to comply with all study requirements. Exclusion Criteria: - Those patients deemed by the treating clinician as unsuitable for an uncemented primary acetabular implant for reasons such as 1. Low demand patient 2. Osteoporosis 3. Significant acetabular bone loss - Patients with significant orthopaedic deformities (eg fused knee, hip or ankle). - Unable to undergo planning imaging (unable to stand or sit for X-rays, or to lie in a CT scanner). - Patients currently receiving ionising radiation treatment or scans for other medical conditions. - Previous entry in this trial (contralateral THR). - Participation in a clinical trial of an investigational medicinal product in the last 90 days. |
Country | Name | City | State |
---|---|---|---|
United Kingdom | University Hospitals Coventry and Warwickshire | Coventry | West Midlands |
Lead Sponsor | Collaborator |
---|---|
University Hospitals Coventry and Warwickshire NHS Trust |
United Kingdom,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Acetabular cup anteversion angle | The difference between planned and achieved acetabular cup anteversion assessed by post-operative CT scan | 6 weeks (+/- 2 weeks) post-surgery | |
Secondary | Hip Disability & Osteoarthritis Outcome Score (HOOS) | Hip Disability & Osteoarthritis Outcome Score (HOOS): a validated, patient-reported measure of hip function. | 6-weeks, 4- and 12-months post-surgery | |
Secondary | Oxford Hip Score | Oxford Hip Score: a validated, patient-reported measure of hip function | 6-weeks, 4- and 12-months post-surgery | |
Secondary | EQ-5D | EQ-5D: a standardised measure of health and economic outcome. | 6-weeks, 4- and 12-months post-surgery |
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