Ask to take part

Contact the study team using the details below to take part. If there are no contact details below please ask your doctor in the first instance.

Contact Information:

Prof Ian Trail
+44 (0)1257 488213
Ian.Trail@wwl.nhs.uk


Prof Joseph Dias
+44 (0)116 258 4702
joseph.dias@uhl-tr.nhs.uk


Dr Stephen Brealey
+44 (0)7450027363
stephen.brealey@york.ac.uk


More information about this study, what is involved and how to take part can be found on the study website.

Study Location:

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Be Part of Research - Trial Details - Reverse or Anatomical replacement for Painful Shoulder Osteoarthritis, Differences between Interventions (RAPSODI-UK)

Reverse or Anatomical replacement for Painful Shoulder Osteoarthritis, Differences between Interventions (RAPSODI-UK)

Medical Conditions

Painful osteoarthritis of the shoulder joint


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.


The aim of this study is to find the best type of joint replacement for the treatment of painful osteoarthritis of the shoulder.

With increasing age, shoulder osteoarthritis is common and causes severe pain and stiffness making everyday activities difficult. A shoulder replacement is an effective solution, reducing pain and allowing the shoulder to move better. The operation replaces damaged bone with new metal and plastic parts. There are two types of shoulder replacement:
1. Anatomic Total Shoulder Replacement which relies on the tendons (Rotator Cuff) around the shoulder to be intact and healthy
2. Reverse Total Shoulder Replacement, which is usually used when the rotator cuff becomes weaker or torn

The rotator cuff can weaken with age which may cause an anatomic replacement to stop working. This could mean a further operation to change the shoulder to a reverse total shoulder replacement. For this reason, an increasing number of patients are offered reverse shoulder replacements even when their rotator cuff is intact. Currently, there is no scientific evidence to support this change and no guidance to recommend which is the best type of shoulder joint replacement. We will investigate which type of surgery gives value for money and the best outcome.

The local PPI Group played a central role in designing this study. They felt that this is an important question to answer and that with surgery it is vital to get ‘it’ right the first time both for the patient and for economic reasons. We, therefore, asked 34 surgeons in a survey about their practice and found 87% already perform or would consider a reverse shoulder in patients with an intact rotator cuff and 74% would be willing to change practice based on the results of the study evidence. Fourteen people who are volunteers for the hospital completed a survey containing a study information sheet. Thirteen said that they would consider being randomised to a study of this type. The PPI group influenced the choice of outcome measure and suggested the addition of a linked qualitative study. A member of the group has agreed to be a co-applicant for the study. All participant documentation will be written with input from the PPI group, strengthened with support from diversity and inclusion experts.

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 Nov 2022 30 Apr 2026

Before their operation, participants will fill in questionnaires about pain and function. At the time of surgery, the type of replacement given will be decided by a process called randomisation. This means that the patient may be allocated to have either an anatomic or reverse total shoulder replacement with equal chance of either type of replacement (like tossing a coin). Participants will not know which treatment group they are in until the end of the study. Clinic visits after the operation will happen as normal but with the addition of remote questionnaires at 3, 6, 12, 18 and 24 months. A subgroup of about 20 participants will be interviewed at 2 and 12 months after their operations to share experiences and thoughts about their recovery.


People over the age of 60 who would benefit from a shoulder replacement and have an attached working rotator cuff will be asked to take part in the study.

You can take part if:



You may not be able to take part if:


1. Shoulder replacement surgery contra-indicated2. A diagnosis of inflammatory arthritis, acute trauma or trauma sequelae3. Evidence that the patient would be unable to adhere to trial procedures or complete questionnaires4. Trial participant for TSR for opposite shoulder


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

  • Musgrove Park Hospital (taunton)
    Musgrove Park Hospital
    Taunton
    TA1 5DA
  • Southmead Hospital
    Southmead Road Westbury-on-trym
    Bristol
    BS10 5NB
  • University Hospital of Wales
    Heath Park
    Cardiff
    CF14 4XW
  • Nottingham City Hospital
    Hucknall Road
    Nottingham
    NG5 1PB
  • Yeovil District Hospital
    Higher Kingston
    Yeovil
    BA21 4AT
  • Royal Berkshire Hospital
    Royal Berkshire Hospital London Road
    Reading
    RG1 5AN
  • Northern General Hospital
    Northern General Hospital NHS Trust C Floor, Huntsmnan Building Herries Road
    Sheffield
    S5 7AU
  • Royal Derby Hospital
    Uttoxeter Road
    Derby
    DE22 3NE
  • Leicester Royal Infirmary
    Infirmary Square
    Leicester
    LE1 5WW
  • Milton Keynes University Hospital
    Standing Way Eaglestone
    Milton Keynes
    MK6 5LD
  • Wrightington Hospital
    Hall Lane Appley Bridge
    Wigan
    WN6 9EP
  • Royal National Orthopaedic Hospital
    Brockley Hill
    Stanmore
    HA7 4LP
  • Airedale General Hospital
    Skipton Road Steeton
    Keighley
    BD20 6TD
  • Norfolk and Norwich University Hospital
    Colney Lane Colney
    Norwich
    NR4 7UY
  • Ipswich Hospital
    Heath Road
    Ipswich
    IP4 5PD
  • Sandwell and West Birmingham Hospitals NHS Trust
    City Hospital Dudley Road
    Birmingham
    B18 7QH
  • Chesterfield Royal Hospital
    Chesterfield Road Calow
    Chesterfield
    S44 5BL
  • North Tyneside General Hospital
    North Tyneside General Hospital Rake Lane
    North Shields
    NE29 8NH
  • Countess of Chester Hospital
    Countess of Chester Health Park Liverpool Road
    Chester
    CH2 1UL
  • Furness General Hospital
    Dalton Lane
    Barrow-in-furness
    LA14 4LF
  • Peterborough City Hospital
    Edith Cavell Campus Bretton Gate Bretton
    Peterborough
    PE3 9GZ
  • Colchester General Hospital
    Colchester District General Hosp. Charter Way Turner Road
    Colchester
    CO4 5JL
  • Wrightington Hospital NHS Trust
    Hall Lane Wrightington
    Wigan
    WN6 9EP
  • Musgrave Park Hospital
    Stockmans Ln
    Belfast
    BT9 7JB
  • Nuffield Orthopaedic Centre
    Windmill Road Headington
    Oxford
    OX3 7HE
  • Broadgreen Hospital
    Thomas Drive
    Liverpool
    L14 3LB
  • Princess Royal Hospital
    Lewes Road
    Haywards Heath
    RH16 4EX
  • St James's University Hospital
    St James's University Hospital Gledow Wing Beckett Street
    Leeds
    LS9 7TF
  • University Hospital Coventry
    University Hospital Coventry Clifford Bridge Road
    Coventry
    CV2 2DX
  • Prince Phillip Hospital
    Bryngwyn Mawr
    Llanelli
    SA14 8QF
  • Trafford General Hospital
    Trafford General Hospital Moorside Road Urmston
    Manchester
    M41 5SL
  • West Suffolk Hospital
    Hardwick Ln
    Bury Saint Edmunds
    IP33 2QZ

Shoulder replacements can only be improved with the help of patients. So taking part in this study means that patients may help improve the care of future patients who need shoulder replacements. Patients may also have more support taking part in the study because of the wider team involved. There is no increased risk for patients taking part in the study. The NHS has treated patients with the types of shoulder replacements being compared in this study for many years. Patients taking part will face the same risks of surgery and receive the same care as patients who have one of these shoulder replacements without taking part in the study. Any adverse events that patients taking part may experience will be followed-up according to regulatory requirements.

Dr Stephen Brealey
+44 (0)7450027363
stephen.brealey@york.ac.uk


Prof Ian Trail
+44 (0)1257 488213
Ian.Trail@wwl.nhs.uk


Prof Joseph Dias
+44 (0)116 258 4702
joseph.dias@uhl-tr.nhs.uk



More information about this study, what is involved and how to take part can be found on the study website.


The study is sponsored by Wrightington, Wigan and Leigh NHS Foundation Trust and funded by National Institute for Health and Care Research.





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Read full details for Trial ID: ISRCTN12216466

Or CPMS 53735

Last updated 11 April 2025

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