OAISYS Inc. was established in 1996 by Dr. Derek Cooke as a means to bring innovative, cost effective solutions to clinicians , researchers and patients in the musculoskeletal field based on our extensive clinical and research background and collaborations.

Our imaging solutions provide precision analysis for orthopedic surgeons, rheumatologists, researchers and implant manufacturers for the evaluation of bone and joint radiographs.

We apply accurate measurements to low-cost radiographs based using unique calibration systems. Our scientific strength in precision radiography is founded on Standardized Knee Imaging (SKI), our gold standard, with proven accuracy and reliability in studies of knee alignment and osteoarthritis. To see the publications on our SKI system visit the Limb Alignment section of our publications page.

Our unique services have been built through collaborative interactions with leading surgeons and researchers  in North America. The development and validation of the Knee Surgery Triage (KST) tool,  Compartmental OA Knee Grading  resulted from partnerships with orthopedic and rehabilitation groups at Queen’s University & Toronto Western Hospital,

OAISYS undertook the analysis of over 10,000 images for NIH based studies:  Multi-center Osteoarthritis Studies (MOST 1 &2), the Osteoarthritis Initiative (OAI) and Mechanical Factors in Arthritis of the Knee (MAK3).

For further information on  endorsements of these projects Click here

OAISYS is PHRP (Protecting Human Research Participants) Certified through the NIH Office of Extramural Research.


OAISYS has received considerable support from the Canadian Government to develop our leading edge services. Grants from Federal Economic Development for Southeastern Ontario (FedDev) and NRC-IRAP helped fund recent critical research projects.

For information about our team and services contact us