

Summary
I graduated from University College of North Wales and then carried out a PhD at Leeds University before moving to UCL where I spent over 25 years as a Biomedical Engineer. During my time at UCL I worked at the Royal National Orthopaedic Hospital where I developed and translated a number of orthopaedic implants into clinical practice. I am a past President of the British Orthopaedic Research Society. I have been awarded the UCL prize for enterprise and innovation, an NHS innovation award and the UCL consultants award. I sit on a number of scientific advisory boards and have been involved in the generation of three spin out companies. I hold several patents. I have published over 200 peer reviewed scientific papers and a number of book chapters. I have successfully supervised over 30 PhD and MD students.
Research interests
My current research investigates the reattachment of tendons to bone and to implant surfaces, the integration of implants with the skeleton, the wear of implant bearing materials and the use of bone graft substitute materials. Recent research has focused on the design and development of transcutaneous implants, which have transformed the lives of amputees.
Research outputs
2025
Measuring full-field strain of the muscle-tendon junction using confocal microscopy combined with digital volume correlation
Blunn, G., Iwasaki, N., Karali, A., Morrison, B., Roldo, M.
1 Feb 2025, In: Journal of the Mechanical Behavior of Biomedical Materials. 164, 12p., 106925
2024
Radiographic evidence of bone changes around intraosseous transcutaneous amputation prosthesis: an 11-year retrospective cohort study
Ahmed, K., Aston, W., Blunn, G., Pendegrass, C.
1 Oct 2024, In: Journal of Prosthetics and Orthotics. 36, 4, p. 224-232
Development of Muscle Tendon Junction in vitro using aligned electrospun PCL fibres
Blunn, G., Iwasaki, N., Karali, A., Roldo, M., Sensini, A.
1 Sep 2024, In: Engineered Regeneration. 5, 3, p. 409-420, 12p.
In vitro development of a muscle-tendon junction construct using decellularised extracellular matrix: effect of cyclic tensile loading
Blunn, G., Iwasaki, N., Karali, A., Roldo, M.
1 Jul 2024, In: Biomaterials Advances. 161, 213873
Expandable screws can increase fixation strength but can they be removed? An in-vivo sheep study demonstrating removal of a novel expandable screw
Blunn, G. W., Cake, M., Day, R. E., Goodship, A., Kuster, M., Murphy, D., Oldakowska, I., Oldakowski, M., Procter, P., Raisis, A., Shaw, J.
4 Jun 2024, In: International Journal of Orthopaedics Research . 7, 2, p. 1-12, 12p.
Collagen and alginate hydrogels support chondrocytes redifferentiation in vitro without supplementation of exogenous growth factors
Blunn, G., Roldo, M., Roncada, T.
14 May 2024, In: ACS Omega. 9, 19, p. 21388–21400, 13p.
Comparison of two contrast-enhancing staining agents for use in X-ray imaging and digital volume correlation measurements across the cartilage-bone interface
Balcaen, T., Blunn, G., Davis, S., Karali, A., Kerckhofs, G., Pétré, M., Roldo, M., Zekonyte, J.
1 Apr 2024, In: Journal of the Mechanical Behavior of Biomedical Materials. 152, 10p., 106414
In Vitro evaluation of pore size graded bone scaffolds with different material composition
Acar, A. A., Bartolo, P., Blunn, G., Cooper, G., Daskalakis, E., Fallah, A., Hassan, M. H., Huang, B., Koç, B., Omar, A. M., Vyas, C., Weightman, A.
1 Apr 2024, In: 3D Printing and Additive Manufacturing. 11, 2, p. e718-e730
A scoring system to evaluate stability of percutaneous osseointegrated implants for transfemoral amputation with validation in the ITAP clinical trial
Ahmed, K., Blunn, G. W.
1 Apr 2024, In: Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine. 238, 4, p. 412-422, 11p.
Evaluation of corrosion performance of AZ31 Mg alloy in physiological and highly corrosive solutions
Blunn, G., Bonithon, R., De Mori, A., Karali, A., Shashkov, P., Smith, N., Usov, S., Yavuzyegit, B.
18 Mar 2024, In: ACS Applied Bio Materials. 7, 3, p. 1735−1747, 13p.