Computer simulation for optimal positioning in total hip replacement surgery

Apply and key information  

This project is funded by:

    • Department for the Economy (DfE)

Summary

Hip replacement is one of the most successful surgical procedures, with over 100,000 operations carried out annually in the UK to relieve pain and restore mobility.

Despite its success, some patients continue to face complications such as discomfort, instability, or early implant failure. A key factor is how the artificial joint is positioned.

Small changes in placement can alter how the joint moves, the forces it experiences, and ultimately how long it lasts. However, current imaging and planning approaches often provide only limited insight into these effects.

This project will use advanced computer simulation, informed by post-operative scans and patient movement data, to understand how variations in implant positioning influence stresses in the bone and risks such as wear, impingement, and dislocation.

By combining innovative motion analysis techniques with finite element modelling, the research will generate new evidence to guide surgical planning and implant design.

The goal is to support surgeons in achieving more reliable outcomes for patients by improving comfort, mobility, and the long-term success of hip replacements.

Essential criteria

Applicants should hold, or expect to obtain, a First or Upper Second Class Honours Degree in a subject relevant to the proposed area of study.

We may also consider applications from those who hold equivalent qualifications, for example, a Lower Second Class Honours Degree plus a Master’s Degree with Distinction.

In exceptional circumstances, the University may consider a portfolio of evidence from applicants who have appropriate professional experience which is equivalent to the learning outcomes of an Honours degree in lieu of academic qualifications.

Desirable Criteria

If the University receives a large number of applicants for the project, the following desirable criteria may be applied to shortlist applicants for interview.

  • First Class Honours (1st) Degree
  • Masters at 65%
  • Work experience relevant to the proposed project
  • Publications - peer-reviewed

Equal Opportunities

The University is an equal opportunities employer and welcomes applicants from all sections of the community, particularly from those with disabilities.

Appointment will be made on merit.

Funding and eligibility

This project is funded by:

  • Department for the Economy (DfE)

This scholarship will cover tuition fees and provide a maintenance allowance of £21,000* (tbc) per annum for three years (subject to satisfactory academic performance).  A Research Training Support Grant (RTSG) of approximately £900 per annum is also available.

To be eligible for these scholarships, applicants must meet the following criteria:

  • Be a UK National, or
  • Have settled status, or
  • Have pre-settled status, or
  • Have indefinite leave to remain or enter, or
  • be an Irish National

Applicants should also meet the residency criteria which requires that they have lived in the EEA, Switzerland, the UK or Gibraltar for at least the three years preceding the start date of the research degree programme.

Applicants who already hold a doctoral degree or who have been registered on a programme of research leading to the award of a doctoral degree on a full-time basis for more than one year (or part-time equivalent) are NOT eligible to apply for an award.

Due consideration should be given to financing your studies.

*Part time PhD scholarships may be available, based on 0.5 of the full time rate, and will require a six year registration period

Recommended reading

OpenCap: 3D human movement dynamics from smartphone videos
Scott D. Uhlrich, Antoine Falisse, Łukasz Kidziński, Julie Muccini, Michael Ko, Akshay S. Chaudhari, Jennifer L. Hicks, Scott L. Delp
bioRxiv 2022.07.07.499061; doi: https://doi.org/10.1101/2022.07.07.499061

Effect of combined flexion and external rotation on measurements of the proximal femur from anteroposterior pelvic radiographs
JD O’Connor, M Rutherford, JC Hill, DE Beverland, NJ Dunne, AB Lennon
Orthopaedics & Traumatology: Surgery & Research 104 (4), 449-454
https://doi.org/10.1016/j.otsr.2018.03.004

Long-term hip loading in unilateral total hip replacement patients is no different between limbs or compared to healthy controls at similar walking speeds
JD O’Connor, M Rutherford, JC Hill, DE Beverland, NJ Dunne, AB Lennon
Journal of biomechanics 80, 8-15
https://doi.org/10.1016/j.jbiomech.2018.07.033

The Doctoral College at Ulster University

Key dates

Submission deadline
Friday 27 February 2026
04:00PM

Interview Date
March 2026

Preferred student start date
14th September 2026

Applying

Apply Online  

Contact supervisor

Dr John O'Connor

Other supervisors