Checklist for Minimum Data Set

In MDSv8 the following changes in the data entry process for all primary and revision hip, knee, ankle, elbow and shoulder joint replacement procedures, reflect changes in clinical practice and aim to enhance NJR data quality.

You can download the tables below by clicking here

Data captureChangeAction required
Surgeon detailsThe ability to record dual consultant procedures.Where two consultants are operating together, provide the details of both.
Patient details‘Gender’ is being replaced by ‘Sex’, with the options ‘Male’, ‘Female’, and ‘Indeterminate’.
All primary forms will have additional fields to record the details of clinical trials in which a patient may be enrolled.
Complete forms as required.
Procedure detailsInfection and Trauma are subdivided into ‘Previous’ and ‘Active’ and ‘Acute’ and ‘Chronic’ respectively.
Thrombo-prophylaxisThe details of thromboprophylaxis (intention to treat) will now include the options ‘In hospital’ and ‘at home’.Complete forms as required.
Periprosthetic fracturesFor all revision forms where periprosthetic fractures are indicated as a reason for revision, the Unified Classification System (UCS) will be used to score the fractures.Complete forms as required.
ImplantsDetails of structural implants and augments will now be required.Submit ‘Component requests’ via the data entry system if they cannot be identified.
DAIRAll DAIR procedures without modular exchange are now included on the new RO form.Use RO form where DAIR without modular exchange is undertaken.

What data is recorded?

The following main changes will feature through the data entry process:

Data captureChange
PRIMARY Hip patient procedureHemiarthroplasty will now be included on the H1 form and details of a failed hemiarthroplasty will be recorded on the H2 form.
REVISION Hip procedure detailsThe option to provide details of revision complexity using a score developed by the British Hip Society.
PRIMARY Knee procedure details– Addition of focal knee resurfacing and excision arthroplasty.

– Addition of synchronous ACL reconstruction
Use of tourniquet.
REVISION Knee procedure details– New option for ‘Stage 2 of planned incomplete primary procedure’.

– The option to provide details of revision complexity using a score developed by the British Association for Surgery of the Knee.
PRIMARY Shoulder procedure detailsAddition of Modified Walch classification for glenoid morphology.
REVISION Shoulder procedure detailsNew option for ‘Stage 2 of planned incomplete primary procedure’.
PRIMARY Elbow procedure detailsAddition of four new patient procedures: Primary total prosthetic replacement without radial head.

– Primary total prosthetic replacement including radial head.

– Radio-capitellar arthroplasty including lateral resurfacing.

– Humeral capitellum hemiarthroplasty.
REVISION Elbow procedure detailsInclusion of options ‘Ulnar’, ‘Humeral’, and ‘Radial Head’ for the following indications for revision:

– Breakage/dissociation of prosthesis.

– Aseptic loosening.

– Lysis.
PRIMARY Ankle procedure detailsNo changes.
REVISION Ankle procedure detailsAddition of ‘periprosthetic fracture’ and UCS.

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