NJR Surgeon and Hospital Profile
Hospital

Hospital: One Hatfield Hospital

Phoenix Hospital Group
SURGEONS WITH ACTIVITY RECORDED IN NJR
Surgeon NameGMC CodeSurgeon’s Activity
Tressa Amirthanayagam6076282 H S
Angelos Assiotis6167574 H E S
David Andrew Butt6104393 E S
Minhal Chatoo3677715 K
Neil Martin Davies3543126 H K
Nicholas de Roeck4111878 H K A
Rupinderbir Singh Deol4578226 A
David Alexander George7038694 H K
Subhajit Ghosh6047815 H K
Amirreza Jenabzadeh4628592 H K
Karanjeev Singh Johal6131056 H A
Yegappan Kalairajah4209982 H K
Piyush Mahapatra7090233 H K
Simon Mellor3617115 H K
Simon Mordecai7021269 H A
Tarique Parwez4465261 H K
Ravi Popat7043233 H K
Adam Rumian4549044 H E S
Rajeev Sharma4205957 E S
Rajesh Sofat4455336 H K E
Manoj Kumar Sood3668953 H K E
Ben George Ieuan Spiegelberg6090006 H K
Stephen Michael Mason Tai6029123 H K
Raj Thakrar6149386 H K
Timothy Waters4201393 H K
Paul Whittingham-Jones4744588 H K
Key :
H Hip surgery
K Knee surgery
A Ankle surgery
E Elbow surgery
S Shoulder surgery
12-MONTH PRACTICE PROFILE (1 YEAR)
Data for 1 April 2025 - 31 March 2026
Operation Type Operation SubcategoryProcedures Recorded for this HospitalNational Average
Hip PrimaryTotal hip replacement178294
Knee PrimaryTotal knee replacement72302
Knee PrimaryUnicondylar Knee Replacement3266
Ankle Primary-Fewer Than 58
Shoulder Primary-Fewer Than 530
           Total282+700
36-MONTH PRACTICE PROFILE (3 YEAR)
Data for 1 April 2023 - 31 March 2026
Operation Type Operation SubcategoryProcedures Recorded for this HospitalNational Average
Hip PrimaryTotal hip replacement509868
Hip Revision-Fewer Than 563
Knee PrimaryFocal Knee ReplacementFewer Than 51
Knee PrimaryTotal knee replacement252852
Knee PrimaryUnicondylar Knee Replacement106171
Ankle Primary-919
Shoulder Revision-Fewer Than 59
Shoulder Primary-781
           Total883+2064
HIPS
PATIENT OUTCOMES

This information display shows you how this hospital compares to the national rates for a range of patient outcomes measures used to demonstrate quality in joint replacement surgery. Against each measure you will be able to see whether this hospital is performing better than expected, within the expected range, or worse than expected for this type of surgery. This hospital is represented on the chart by a red triangle.

It is important to note that the types of patients a hospital treats and the procedures it carries out can explain variation in patient outcomes after surgery. Please click on the “How to interpret this chart” button for further information.

 
Patient outcomes

Patient outcomes, featured in this second chart below, looks at mortality and revision. Please click on the “How to interpret this chart” button for further information including additional notes on factors that may affect the results shown including whether the hospital is providing a full and accurate submission of first-time joint replacement and revision operation data to the NJR.

Data for February 2016 - February 2026


Click on the   to find out more about the quality measure and its source data
 

Patient Outcomes Quality MeasureThis Hospital Patient Records AnalysedThis Hospital RatioNational Ratio
0
1
2
3
4
5
90 Day Mortality: Operations February 2021 - February 2026Inside control limits8230.421.00
Revision Rate: Operations February 2016 - February 2026Inside control limits10800.731.00
Revision Rate: Operations February 2021 - February 2026Inside control limits8390.471.00
 
ABOUT THE PATIENTS WHO WERE TREATED

This information display shows overall characteristics for first-time hip replacement patients treated at this hospital between 1 April 2003 and 31 March 2026. Against each characteristic you will be able to see whether this hospital has treated a greater or fewer number of patients of a particular type. This hospital is represented on the chart by the black marker ().

The types of patients a hospital treats can explain variation in patient outcomes after surgery. Please click on the “How to interpret this chart” button for further information.

For hospitals in England and Wales, the NJR has collected information since 2003. For Northern Ireland since 2013, for the Isle of Man since 2015, for Guernsey since 2019 and for Jersey since 2025.

Data for 1 April 2003 - 31 March 2026


Click on the   to find out more about the quality measure and its source data
 

Percentage Of Patients Who Were:This HospitalNational Average
Male41%40%
Under 60 years of age21%20%
Severely Obese (BMI of 35 or greater)9%13%
At higher risk of medical problems before or after Surgery (ASA 3+)11%22%
Diagnosed with conditions other than Osteoarthritis4%14%
NHS-funded29%81%
 
90-DAY MORTALITY
Data for February 2021 to February 2026 Hospital risk adjusted 90-day mortality

What does this mean?

This shows 90-day mortality following hip surgery for this hospital, based on the type of patients this hospital has seen.

The hospital you are reviewing is highlighted as an orange triangle. Progression along the horizontal axis (x axis) means that the hospital has done more cases and/or cases at a higher mortality risk such as older patients. Progression along the vertical axis (y axis) means the hospital has had more deaths.

The vertical axis figures are presented as a standardised mortality ratio. This means the values do not represent percentages of patients who have died, but they represent the proportion of deaths compared to the national average. The data is also ‘risk adjusted’ to take account of the fact that different hospitals may operate on more higher-risk or lower-risk patients e.g. because of demographics in the patient population they work with.

  • Hospitals on the central (green) horizontal line (at national average ratio figure of 1) have had exactly the average expected mortality
  • Hospitals either side of the central green line but below the upper red line have had a level of mortality that is within the expected range
  • Any hospitals that appear above the top red line which represents a Control limit (99.8%) have a mortality rate that is higher than expected

KNEES
PATIENT OUTCOMES

This information display shows you how this hospital compares to the national rates for a range of patient outcomes measures used to demonstrate quality in joint replacement surgery. Against each measure you will be able to see whether this hospital is performing better than expected, within the expected range, or worse than expected for this type of surgery. This hospital is represented on the chart by a red triangle.

It is important to note that the types of patients a hospital treats and the procedures it carries out can explain variation in patient outcomes after surgery. Please click on the “How to interpret this chart” button for further information.

 
Patient outcomes

Patient outcomes, featured in this second chart below, looks at mortality and revision. Please click on the “How to interpret this chart” button for further information including additional notes on factors that may affect the results shown including whether the hospital is providing a full and accurate submission of first-time joint replacement and revision operation data to the NJR.

Data for February 2016 - February 2026


Click on the   to find out more about the quality measure and its source data
 

Patient Outcomes Quality MeasureThis Hospital Patient Records AnalysedThis Hospital RatioNational Ratio
0
1
2
3
4
5
90 Day Mortality: Operations February 2021 - February 2026Inside control limits6830.961.00
Revision Rate All Knees: Operations February 2016 - February 2026Inside control limits8810.881.00
Revision Rate Total Knee replacement: Operations February 2016 - February 2026Inside control limits6670.501.00
Revision Rate Unicondylar Knees: Operations February 2016 - February 2026Inside control limits2101.461.00
Revision Rate: Operations February 2021 - February 2026Inside control limits7020.621.00
 
ABOUT THE PATIENTS WHO WERE TREATED

This information display shows overall characteristics for first-time knee replacement patients treated at this hospital between 1 April 2003 and 31 March 2026. Against each characteristic you will be able to see whether this hospital has treated a greater or fewer number of patients of a particular type. This hospital is represented on the chart by the black marker ().

The types of patients a hospital treats can explain variation in patient outcomes after surgery.

For hospitals in England and Wales, the NJR has collected information since 2003. For Northern Ireland since 2013, for the Isle of Man since 2015, for Guernsey since 2019 and for Jersey since 2025.

Please click on the “How to interpret this chart” button for further information.

Data for 1 April 2003 - 31 March 2026


Click on the   to find out more about the quality measure and its source data
 

Percentage Of Patients Who Were:This HospitalNational Average
Male43%44%
Under 60 years of age16%16%
Severely Obese (BMI of 35 or greater)18%23%
At higher risk of medical problems before or after Surgery (ASA 3+)13%19%
Diagnosed with conditions other than Osteoarthritis4%4%
NHS-funded36%84%
 
90-DAY MORTALITY
Data for February 2021 to February 2026 Hospital risk adjusted 90-day mortality

What does this mean?

This shows 90-day mortality following knee surgery for this hospital, based on the type of patients this hospital has seen.

The hospital you are reviewing is highlighted as an orange triangle. Progression along the horizontal axis (x axis) means that the hospital has done more cases and/or cases at a higher mortality risk such as older patients. Progression along the vertical axis (y axis) means the hospital has had more deaths.

The vertical axis figures are presented as a standardised mortality ratio. This means the values do not represent percentages of patients who have died, but they represent the proportion of deaths compared to the national average. The data is also ‘risk adjusted’ to take account of the fact that different hospitals may operate on more higher-risk or lower-risk patients e.g. because of demographics in the patient population they work with.

  • Hospitals on the central (green) horizontal line (at national average ratio figure of 1) have had exactly the average expected mortality
  • Hospitals either side of the central green line but below the upper red line have had a level of mortality that is within the expected range
  • Any hospitals that appear above the top red line which represents a Control limit (99.8%) have a mortality rate that is higher than expected
ANKLES
ABOUT THE PATIENTS WHO WERE TREATED

This information display shows overall characteristics for first-time ankle replacement patients treated at this hospital between 1 April 2010 and 31 March 2026. Against each characteristic you will be able to see whether this hospital has treated a greater or fewer number of patients of a particular type. This hospital is represented on the chart by the black marker ().

The types of patients a hospital treats can explain variation in patient outcomes after surgery.

Note: Data submission for Northern Ireland hospitals started in February 2013, for the Isle of Man in July 2015, for Guernsey in November 2019 and for Jersey since 2025.

Please click on the “How to interpret this chart” button for further information.

Data for 1 April 2010 - 31 March 2026


Click on the   to find out more about the quality measure and its source data
 

Percentage Of Patients Who Were:This HospitalNational Average
Male56%61%
Under 60 years of age22%19%
Severely Obese (BMI of 35 or greater)12%14%
At higher risk of medical problems before or after Surgery (ASA 3+)0%19%
Diagnosed with conditions other than Osteoarthritis0%11%
NHS-funded0%81%
 
SHOULDERS
ABOUT THE PATIENTS WHO WERE TREATED

This information display shows overall characteristics for first-time shoulder replacement patients treated at this hospital between 1 April 2012 and 31 March 2026. Against each characteristic you will be able to see whether this hospital has treated a greater or fewer number of patients of a particular type. This hospital is represented on the chart by the black marker ().

The types of patients a hospital treats can explain variation in patient outcomes after surgery.

Note: Data submission for Northern Ireland hospitals started in February 2013, for the Isle of Man in July 2015, for Guernsey in November 2019 and for Jersey since 2025.

Note: BMI data submission for Elbows started in June 2018.

Please click on the How to interpret this chart button for further information.

Data for 1 April 2012 - 31 March 2026


Click on the   to find out more about the quality measure and its source data
 

Percentage Of Patients Who Were:This HospitalNational Average
Male20%31%
Under 60 years of age0%11%
Severely Obese (BMI of 35 or greater)7%18%
At higher risk of medical problems before or after Surgery (ASA 3+)16%33%
Diagnosed with conditions other than Osteoarthritis72%48%
NHS-funded20%89%
 
QUALITY OF THE INFORMATION SUBMITTED BY THIS HOSPITAL

This information display shows whether this hospital is submitting all the data they should to the NJR (compliance), whether those records have corresponding patient details (patient consent) and whether the records have a valid NHS or national patient number. This is important so that the NJR can measure how long implants last and look at other areas of surgical performance.

The display also shows a result for data entry delay. This indicates whether the hospital is submitting their information in a timely way. This is important so that the NJR can report an accurate and full picture of performance to hospitals, the surgeons who work there as well as to patients and the public.

This hospital is represented on the chart by the black marker (). Please click on the “How to interpret this chart” button for further information.

Compliance data for 1 January 2025 – 31 December 2025

All other data for 1 April 2025 – 31 March 2026


Click on the   to find out more about the quality measure and its source data
 

Quality Measure This HospitalNational Expected
Compliance (for the Trust)No Data Available--
Revision Compliance (for the Trust)No Data Available--
Trauma consent rateNo Data Available--
Elective consent rateBetter Than Expected100.0%90.0%
Valid NHS numberBetter Than Expected100.0%95.0%
Time taken to enter dataBetter Than Expected4 Days30 Days
 
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If there is no profile for an individual surgeon it is likely to be because of concerns about the accuracy of the data originally supplied to the NJR and it has, therefore, been decided not to publish this surgeon's data.

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