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Minimum Data Set Version 7

MDSv7 is now live. For more information on the changes in MDSv7 and to download the new data forms please go to:

To download an updated user guide please go to:

NB: You are still able to enter MDSv6 records for procedures which took place before 4th June 2018 and will be able to do so until the end of 2018. 

You will be able to edit MDSv6 records til the end of 2019. 

To access MDSv6 data entry go to the MDSv7 login page and select the option:    "To enter a MDSv6 procedure carried out prior to 4th June 2018, or to edit an existing MDSv3, 4, 5 or 6 record click here.”

The changes are in response to feedback from data collection staff and orthopaedic surgeons and were extensively reviewed by the NJR Minimum Dataset Working Group, chaired by Mr Matthew Porteous, and supported by the NJR Regional Clinical Coordinators Committee.  The change proposals were sent to orthopaedic professional societies: BASK, BHS, BESS & BOFAS for review and approved by the NJR Steering Committee.

The changes have been designed to clarify and enhance NJR data quality rather than increasing the burden on data entry teams.

Frequently Asked Questions

Why change?

The update to MDSv7 has been done to reflect:

  • Changes in clinical practice

  • New technologies

  • New treatments

  • Relevance of existing data collection

What are the changes to the MDS?

The following additional data and options will feature through the data entry process. For further details, please download the individual MDSv7 forms here:


 Joint Form Change


Primary & Revision

 Bone graft – change to include site and type
 Revision Surgical Approach – procedure type

Addition of:

Debridement and implant retention (DAIR) with modular exchange

Debridement and implant retention (DAIR) without modular exchange

    Primary & Revision Patient Details
User may now enter BMI details for Elbow and Shoulder patients
     Primary and Revision Surgical Approach - Patient position
Addition of Direct anterior approach

Surgical Approach - Patient procedure
Addition of:
Application Posterior Lip Augmentation Device (PLAD)

   Primary New Secion for Unicompartmental knee allowing user to select all that apply from:
Patello Femoral
 Revision Surgical Approach – Patient procedure

New options:Secondary resurfacing of patella and Partial replacement second compartment of knee (UNI or PFR)

 Revision Definition of Hybrid extended to include “modular exchange” and “patella resurfacing”
   Primary & Revision Surgical Approach - Patient procedure
New option:
Distal humeral hemi arthroplasty
 Primary Definition of Hybrid extended to include “modular exchange”
 Primary Intra-operative events - 3 new options
Shaft penetration humerus
Shaft penetration ulna
Nerve injury
   Primary & Revision Surgical Approach - Associated procedures at the time of surgery
New option:
Medial ligament release
 Primary & Revision Intra-operative events - 2 new options
Nerve injury
Tendon injury
   Primary & Revision Major changes due to advances in technologies and techniques
 Primary Patient procedures - increased 4 to 9
New indications for surgey
Fixation separated into Humerus and Glenoid
Additional data about rotator cuff
Details of 5 other soft tissues
 Revision New patient procedures to match primary form 
Fixation separated into Humerus and Glenoid
Indications for revision - increased from 8-16
Rotator cuff and soft tissues changed to match primary form


Where do I find the new forms?

The new forms can be found in the links below, and directly from your NJR Regional Coordinator.

  Hip Primary H1 
Hip Revision H2
  Knee Primary K1 
Knee Revision  K2
  Ankle Primary A1 
Ankle Revision  A2
  Elbow Primary E1
Elbow Revision E2
  Shoulder Primary S1
Shoulder Revision S2

What should I do to prepare?

We recommend data entry users and HDMs to:

  • Circulate and put into use new data collections above
  • Note and raise awareness of the changes amongst data collection & processing teams within your hospital
  • Ensure that all procedures carried out in FY 17/18 are reporting MDSv6 forms and are submitted by 31st May 2018

Can I use the MDSv7 forms now?

Yes, you can use MDSv7 forms before the 4th June 2018, but you will not be able to input them until the form goes live on that date. We recommend that you start using MDSv7 paper forms in April/May and use the time to ensure that all your MDSv6 forms are input before that date.

What happens if I have procedures carried out in FY17/18 not uploaded by the 31st May?

Once MDSv7 goes live on the 4th June 2018, any outstanding procedures will need to be transferred to MDSv7 forms. You will need to go back to the surgeon to get some information for the new MDSv7 form and then submit as normal. Ideally we would recommend you to start using the MDSv7 paper forms in April/May, ready for entering on the 4th June 2018.

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