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Orthopaedic Innovation Centre Releases New White Paper on the Testing and Validation of a Patient-Specific, Surface-Guided Total Knee Replacement


The Orthopaedic Innovation Centre Inc. (“OIC” or “the Company), a non-profit centre for medical device testing, research, and development, announced today the release of a new white paper detailing the benefits of a proprietary articulation system for a total knee replacement which aims to improve patient’s satisfaction with their replaced knee joint.

The white paper describes the extensive development of the technology as well as results of numerous validation tests performed on a surface-guided knee prototype manufactured by Precision ADM (Winnipeg, MB). These works, which have been published in numerous peer-reviewed journals, demonstrate the superiority of the design in terms of: 

  • Guided, patient-specific knee kinematics with more precise implant fit
  • High range of motion with up to 155° of flexion, up to 22° external rotation of the femur, and 12 mm of femoral rollback
  • Joint stability without relying on ligaments
  • Low articular surface pressure which reduces risk of polyethylene damage and lowers wear rate

The surface-guided design has been granted patents in Canada, China, Japan, France, Germany, Great Britain, Italy, Sweden, Switzerland, and most recently the United States. The OIC is actively seeking a device manufacturer to license the technology and continue development of the industry’s first surface-guided total knee replacement.

“Patient dissatisfaction following knee replacement surgery is a significant issue for clinicians,” said Eric Bohm, MD, B.Eng., M.Sc., FRCSC. “The Surface-Guided Knee implant which is designed to fit the patient better and restore their natural kinematics can address this issue and improve patient outcomes.”

“It is believed that the tested customized surface-guided implant is a major step toward the development of novel total knee replacement with the aim of achieving a higher range of flexion angles. This could ultimately improve the quality of life of the patients with total knee replacement, particularly for those who have an active lifestyle,” said Dr. Shabnam Pejhan, Co-Developer.

About The Orthopaedic Innovation Centre 
Backed by engineering expertise, experience, and a passion for innovation, the Orthopaedic Innovation Centre excels in supporting the medical device industry through static and dynamic mechanical testing, precision measurement, clinical research services, and product development activities. The OIC is ISO 9001:2015 certified and headquartered in Winnipeg, Manitoba, Canada.

Josh Sandberg

Josh Sandberg is the President and CEO of Ortho Spine Partners and sits on several company and industry related Boards. He also is the Creator and Editor of OrthoSpineNews.

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