Imperial College London


Faculty of MedicineDepartment of Surgery & Cancer

Research Associate



+44 (0)20 7594 3649s.harris




216Sir Michael Uren HubWhite City Campus





Simon received his BSc in Electrical and Electronic Engineering from Hull University in 1986, with a final year project developing a multi-channel heart rate monitor for crabs. He went on to study for an MSc at St. Bartholomew's Hospital, obtaining a distinction in Medical Electronics and Physics in 1988. Simon continued at St. Bartholomew's Hospital, working on a SERC funded project to develop computer controlled CCD scanning equipment to image the pupil of the eye, stimulate it and measure diameter and reflexes. Simon completed his PhD in this area in 1992. 

At the end of 1991, Simon joined Imperial College's Mechanical Engineering Department, working under Professor Brian Davies on an EPSRC project to using vision based feedback to control the robotic dispensing of adhesive beads onto automotive parts. At the close of this project, Simon turned his attention from industrial robotics back to the medical world, joining the Mechatronics in Medicine Lab. to work on the Probot Prostatectomy robot, developing ultrasound based 3D planning and intraoperative control and monitoring software, seeing the project through from laboratory studies to clinical evaluation.  After a brief foray into developing image recognition software for Civil Engineering, Simon switched from soft-tissue surgery to orthopaedics,  working under Professor Brian Davies in collaboration with Professor Justin Cobb on the Acrobot active contraint robot for knee surgery. Working within a small team, principally on CT based pre-operative planning the project was taken from the laboratory into the operating theatre.

In 1999, Simon, along with Professor Brian Davies, Professor Justin Cobb and Matjaz Jakopec became founder members of the spin-out company Acrobot. Initially working from within Imperial College, but moving to its own premises in 2004, Simon was a senior development manager with the company until 2010, responsible for developing hip and knee planning software, electronic design work within the company's Navigator and Sculptor products, and manager of Acrobot's Data Processing service.

2010 sees Simon returning to Imperial College in The Department of Surgery and Cancer, working under Professor Justin Cobb, investigating hips and knees under a Wellcome sponsored research grant.

Simon's principal research interests are:

  • Image based 3D planning of hip and knee surgery
  • Processing and segmentation of 3D datasets
  • Robotic and Navigation for orthopaedic surgery




Jones G, Clarke S, Harris S, et al., 2019, A novel patient-specific instrument design can deliver robotic level accuracy in unicompartmental knee arthroplasty, The Knee, Vol:26, ISSN:0968-0160, Pages:1421-1428

Uemura K, Boughton O, Logishetty K, et al., 2019, A single-use, size-specific, nylon arthroplasty guide: a preliminary study, Hip International, ISSN:1120-7000

Jones GG, Logishetty K, Clarke S, et al., 2018, Do patient-specific instruments (PSI) for UKA allow non-expert surgeons to achieve the same saw cut accuracy as expert surgeons?, Archives of Orthopaedic and Trauma Surgery, Vol:138, ISSN:0936-8051, Pages:1601-1608

Rivière C, Dhaif F, Shah H, et al., 2018, Kinematic alignment of current TKA implants does not restore the native trochlear anatomy, Orthopaedics and Traumatology: Surgery and Research, Vol:104, ISSN:1877-0568, Pages:983-995

Rivière C, Dhaif F, Shah H, et al., 2018, Kinematic alignment of current TKA implants does not restore the native trochlear anatomy, Revue De Chirurgie Orthopedique Et Traumatologique, Vol:104, ISSN:1877-0517, Pages:673-685

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