Evaluation of Aid to Diagnosis for Congenital Dysplasia of the Hip in General Practice

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ACTIVE_NOT_RECRUITING

Clinical Phase

NA

Total Enrollment

172 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-03-06

Study Completion Date

2027-02-15

Brief Summary

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Developmental dysplasia of the hip (DDH) is one of the most common inborn diseases. Early diagnosis of this condition is very important and it can be harmful both to miss DDH and label normal infants as having DDH. Why DDH can be missed or labelled to normal children is not well understood but can be related to the doctor's knowledge, skill and the way the hip consultation is conducted. This research aims to help overcome these issues and proposes the use of a diagnostic aid (checklist) for DDH in general practices (GP).

The Investigator will divide general practices (GP) in England into two groups. One group will use our checklist for all hip checks they carry out. The other group will work as they usually do, without the aid. The study wishes to compare if GPs who use the checklist will do better in identifying babies with DDH than those who do not use our checklist. The Investigator will also evaluate whether using the checklist reduces costs for families around trips to doctors or hospitals, and costs to the NHS (National Health Service). In addition The Investigators will interview general practitioners, health visitors and carers of infants to elicit their perceptions about the intervention.

The study will include GPs registered in England who carry out the 6-week hip check and agree to being randomised and to hospitals releasing data on infants they had examined during the study period. Practices planning to close within 12 months of the start of the study are not eligible. Eligible infants will be identified by general practice patient registers and infants will be invited to attend a 6-week check at their local practices, the research sites. The study plans to include a total of 152 practices in this study and will collaborate with 15 NIHR (National Institute of Health Research) CRNs (Clinical Research Network) to recruit GP practices with efficient and existing infrastructure.

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Detailed Description

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1. Objectives:

* To determine whether the use of a check list for the 6-week hip check can (i) reduce the number of clinically insignificant referrals from primary to secondary care, and (ii) reduce the number of Developmental dysplasia of the hip (DDH) diagnosed beyond the age of 12 weeks.
* To determine the cost-effectiveness of this intervention considering a life time horizon.
* To conduct an integrated qualitative and quantitative process evaluation in order to: understand the participants' experience with the intervention; identify how the intervention affects general practitioners' capability, opportunity and motivation in relation to the 6-week check; study how the intervention is implemented; and investigate how contextual factors affect uptake of the intervention.
2. Type of trial: Phase III, cluster randomised controlled trial
3. Trial design and methods: This trial incorporates (i) 4-months internal pilot in order to confirm realistic recruitment targets; (ii) process evaluation encompassing qualitative research on changing physician referral behaviour and on normalising the intervention in practice; and (iii) health economic evaluation.
4. Trial duration per participant: 24 months
5. Planned trial sites: 172 GP practices in England. Half will be randomised to the experimental arm (using the diagnostic aid) and half to the control arm (standard of care 6 week hip check)
6. Total number of participants planned: 172 GP practices will be randomised (with an average of 110 infants recruited across the trial period per practice).
7. Main inclusion criteria:

* Inclusion: GP practices registered in England and who carry out the 6-week hip check as part of their routine work - these practices must be using either EMIS or System One clinical computer systems

Conditions

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Developmental Dysplasia of the Hip

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

SCREENING

Blinding Strategy

SINGLE

Investigators

Study Groups

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Diagnostic Aid

The experimental group will use the trial diagnostic aid for all 6-week infant hip checks

Group Type EXPERIMENTAL

The 6-week Hip Checklist

Intervention Type DIAGNOSTIC_TEST

Comprehensive 9-item structured guide to aid in correct diagnosis of developmental dysplasia of the hip.

Standard of Care

The control group will assess infants according to standard practice, during the 6-week hip check.

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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The 6-week Hip Checklist

Comprehensive 9-item structured guide to aid in correct diagnosis of developmental dysplasia of the hip.

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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Inclusion Criteria

* General practices (GP) registered in England and who carry out the 6-week infant hip check as part of their routine work.
* Practice using either EMIS or SystemOne clinical computer systems
* General practitioners recording all 6 week baby hip examination on their computer template
* GPs willing to give informed consent to (a) being randomized, (b) willing to undergo observations, interviews and questionnaires and (c)collaborating secondary care facilities releasing data about all infants undergoing the 6-week hip check GP practices during the duration of the randomised controlled trial.
* GPs conducting the 6 week check must agree to view the training video on the examination of babies' hips at 6 weeks at baseline
* In the study practice, infants who are eligible for this study will be those presenting to any of the practices if aged \<11 weeks when the 6-week check is done in the GP practice.

Exclusion Criteria

* Any GP practice that is to close down within 12 months of when the first patient would be recruited in this practice.
* Parents/carers aged under 18

Minimum Eligible Age

6 Weeks

Maximum Eligible Age

11 Weeks

Eligible Sex

ALL

Accepts Healthy Volunteers

No