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Contact Information:

Prof Andreas Roposch
a.roposch@ucl.ac.uk


Sultana Begum-Rahman
s.begum-rahman@ucl.ac.uk


Mhairi McKenzie
mhairi.mckenzie.16@ucl.ac.uk


Tanya Awal
t.awal@ucl.ac.uk


Study Location:

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Be Part of Research - Trial Details - Evaluation of aid to diagnosis for DDH in general practice, Version 1

Evaluation of aid to diagnosis for DDH in general practice, Version 1

Medical Conditions

Congenital malformations and deformations of the musculoskeletal system


This information is provided directly by researchers, and we recognise that it isn't always easy to understand. We are working with researchers to improve the accessibility of this information. In some summaries, you may come across links to external websites. These websites will have more information to help you better understand the study.


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 for DDH in general (GP) practices.

We will divide GP practices 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. We will compare if GPs who use the checklist will do better in identifying babies with DDH than those who do not use our checklist. We will also evaluate whether using the checklist reduces costs for families around trips to doctors or hospitals, and costs to the NHS. In addition we will interview GPs, health visitors and carers of infants to elicit their perceptions about the intervention. We will include GP practices registered in England who carry out the 6-week hip check (at infant age 42-76 days) 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 participants 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. We plan to include a total of 152 practices in this study and will collaborate with 15 NIHR CRNs to recruit GP practices with efficient and existing infrastructure.

Start dates may differ between countries and research sites. The research team are responsible for keeping the information up-to-date.  

The recruitment start and end dates are as follows:

01 Feb 2020 30 Jun 2025

Observational and Interventional

Type: Other;



You can take part if:



You may not be able to take part if:


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 There are no exclusion criteria for infants undergoing the 6-week check.


Below are the locations for where you can take part in the trial. Please note that not all sites may be open.

  • The Eden Surgeries
    Bishops Stortford
    Hertfordshire
    CM22 7EH
  • Moulton Surgery
    Northampton
    Northamptonshire
    NN3 7QP
  • Towcester Medical Centre
    Towcester
    Northamptonshire
    NN12 6HH
  • Kings Medical Centre
    Buckhurst Hill
    Essex
    IG9 5LP
  • Tile House Surgery
    Brentwood
    Essex
    CM15 8AQ
  • Wellside Surgery
    Huntingdon
    Cambridgeshire
    PE28 5SU
  • Great Bentley Surgery
    Colchester
    Essex
    CO7 8PJ
  • Woolpit Health Centre
    Bury St. Edmunds
    Suffolk
    IP30 9QU
  • Albany Surgery
    Newton Abbot
    Devon
    TQ12 1GJ
  • Dr Salako And Partners
    Basildon
    Essex
    SS16 6SA
  • Brunel Medical Practice
    Torquay
    Devon
    TQ1 3SL
  • Davenport House Surgery
    Harpenden
    Hertfordshire
    AL5 4HX
  • Spring Gardens Group Medical Practice
    Worcester
    Worcestershire
    WR1 2BS
  • Brownlow Health @ Princes Park
    Liverpool
    Merseyside
    L8 0SY
  • Marine Lake Medical Practice
    Wirral
    Merseyside
    CH48 4HZ
  • Parsonage Surgery
    Bishop's Stortford
    Hertfordshire
    CM23 5JH
  • St Georges Medical Centre
    Wallasey
    Merseyside
    CH45 5LN
  • Chawton Park Surgery
    Alton
    Hampshire
    GU34 1RJ
  • Gilberdyke Health Centre
    Brough
    North Humberside
    HU15 2UL
  • Harvey Group Practice
    St. Albans
    Hertfordshire
    AL3 5HB
  • Audley Mills Surgery
    Rayleigh
    Essex
    SS6 7JF
  • Middleway Surgery
    Par
    Cornwall
    PL24 2JL
  • Mid Devon Medical Practice
    Tiverton
    Devon
    EX16 8EZ
  • Westbank Practice
    Exeter
    Devon
    EX6 8DF
  • Winyates Health Centre
    Redditch
    Worcestershire
    B98 0NR
  • Fallodon Way Medical Centre
    Bristol
    Avon
    BS9 4HT
  • Parkwood Surgery
    Hemel Hempstead
    Hertfordshire
    HP1 2LD
  • Hugglescote Surgery
    Coalville
    Leicestershire
    LE67 2BS
  • Meon Health Practice
    Fareham
    Hampshire
    PO15 6JF
  • South Lawn Medical Practice
    Exeter
    Devon
    EX1 2RX
  • Milton Surgery
    Cambridge
    Cambridgeshire
    CB24 6BL
  • Rawcliffe
    Rawcliffe
    North Humberside
    DN14 8QR
  • White House Surgery
    Sheffield
    South Yorkshire
    S2 1SL
  • The Limes Medical Centre
    Birmingham
    West Midlands
    B10 0BS
  • Drayton Medical Practice
    Norwich
    Norfolk
    NR8 6EE
  • Avonside Health Centre
    Warwick
    Warwickshire
    CV34 5GJ
  • Preston Hill Surgery
    Harrow
    HA3 9SN
  • The Pine Medical Centre
    Hayes
    Middlesex
    UB4 8RB
  • Freuchen Medical Centre
    London
    Greater London
    NW10 4ST
  • Winterton Medical Practice
    Scunthorpe
    South Humberside
    DN15 9TA

Mhairi McKenzie
mhairi.mckenzie.16@ucl.ac.uk


Sultana Begum-Rahman
s.begum-rahman@ucl.ac.uk


Tanya Awal
t.awal@ucl.ac.uk


Prof Andreas Roposch
a.roposch@ucl.ac.uk



The study is sponsored by GREAT ORMOND STREET HOSPITAL FOR CHILDREN NHS FOUNDATION TRUST and funded by NIHR Central Commissioning Facility (CCF) .




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for Trial ID: CPMS 41674

Last updated 07 July 2025

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