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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT06178185
Other study ID # RL1 868
Secondary ID
Status Recruiting
Phase
First received
Last updated
Start date June 27, 2023
Est. completion date June 27, 2024

Study information

Verified date December 2023
Source Robert Jones and Agnes Hunt Orthopaedic and District NHS Trust
Contact Julie Steen
Phone +441691404210
Email julie.steen@nhs.net
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

Hip replacements are one of the NHS's highest volume procedures, with ~14,000 operations per month before the onset of the COVID-19 pandemic. Delays to surgery can have significant implications; meaning increasing levels of pain and worsening quality of life. As of January 2021, following the initial waves of the COVID-19 pandemic, 58,000 people had waited an average of 25 additional weeks for their total hip replacement. The results of the study will hopefully help treating clinicians identify patients in whom there may be further deterioration if surgery is significantly delayed.


Description:

Patients attending their routine pre-operative assessment clinic who meet the inclusion criteria will be invited to take part in the study by their direct clinical care team. If they provide their consent, they will first be examined for their maximum hip internal rotation possible when supine with hip and knee flexed at 90 degrees. They will then be asked to sit in front of a camera placed at a height 2 to 3 feet (0.6 to 0.9 m) off the ground and stand 6 feet (1.8 m) away(6). Patients will be asked to spread their feet as far apart from each other whilst sitting straight with hips and knees at 90 degrees. A photograph will be taken of their neutral position, and another with their best attempt at internal rotation. The internal rotation angle obtained along with the photo number will be documented on a data collection sheet with a hospital sticker, BMI, oxford hip score and EQ5D score completed that day. At the end of the day, this information shall be collated & transcribed onto an excel spreadsheet for subsequent x-ray and photo review & measurement, anonymisation and analysis.


Recruitment information / eligibility

Status Recruiting
Enrollment 240
Est. completion date June 27, 2024
Est. primary completion date June 27, 2024
Accepts healthy volunteers No
Gender All
Age group N/A and older
Eligibility Inclusion Criteria: - Native hip arthritis - On the waiting list for elective total hip replacement surgery - Able to give informed consent to participate - Existing medical records demonstrating 2 AP Pelvic Xray images taken at least 3 months apart Exclusion Criteria: - Inability to consent to participation - Previous surgical intervention on the joint in question.

Study Design


Related Conditions & MeSH terms


Locations

Country Name City State
United Kingdom Robert Jones & Agnes Hunt Orthopaedic Hospital NHS Foundation Trust Oswestry Shropshire

Sponsors (1)

Lead Sponsor Collaborator
Robert Jones and Agnes Hunt Orthopaedic and District NHS Trust

Country where clinical trial is conducted

United Kingdom, 

References & Publications (1)

Nikolova S, Harrison M, Sutton M. The Impact of Waiting Time on Health Gains from Surgery: Evidence from a National Patient-reported Outcome Dataset. Health Econ. 2016 Aug;25(8):955-68. doi: 10.1002/hec.3195. Epub 2015 May 26. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary The primary aim of this study is to evaluate the factors, including obligate external rotation, that are associated with risk of progression in hip OA. The Deterioration Index (mm/week) will be calculated as the difference in average joint space width for the affected hip in AP X-Ray images taken at least 12 weeks apart, divided by the number of weeks between the X-Ray images assessed. The relationship with the parameters collated (age, BMI, KL grade, presence of OER) and DI will be evaluated to work out a cut-off value for high or low DI as part of the validation study.
The DI will also be evaluated as regards a relationship to the OHS and EQ5D to assess if there is a correlation with metrics used to assess subjective outcome in this patient cohort.
Participants attend clinic for a one-time clinic visit.
Secondary 1-Develop a simple grading system based on the aforementioned results, to evaluate the feasibility of aiding clinicians in prioritising patients for THR. The secondary aims of the study will be evaluated by analysing the suitability of a grading system for risk of progression of hip OA, based on factors that lead to the highest DI values.
The presence of OER will be evaluated and evidence of correlation to the photographic internal rotation angle, as well as quality of life scores will be assessed.
For approximately for 1 year, through study completion.
Secondary 2-Validate the assessment of obligate external rotation remotely using a camera. Participants will first be examined for their maximum hip internal rotation possible when supine with hip and knee flexed at 90 degrees.
They will then be asked to sit in front of a camera placed at a height 2 to 3 feet (0.6 to 0.9 m) off the ground and stand 6 feet (1.8 m) away(6). Patients will be asked to spread their feet as far apart from each other whilst sitting straight with hips and knees at 90 degrees. A photograph will be taken of their neutral position, and another with their best attempt at internal rotation.
The internal rotation angle obtained along with the photo number will be documented on a data collection sheet with a hospital sticker, BMI, oxford hip score and EQ5D score completed that day.
At the end of the day, this information shall be collated & transcribed onto an excel spreadsheet for subsequent x-ray and photo review & measurement, anonymisation and analysis.
For approximately for 1 year, through study completion.
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