By John Slamin and Dr. Daniel Steines
Despite the challenges, total knee replacement is one of the most common surgical procedures. It is estimated that 19 million Americans seek medical attention for knee pain according to the American Association of Orthopedic Surgeons and of those, about 500,000 undergo knee replacement surgery.
The Proprietary Programming
How iFit Produces a Knee Implant
On the tibial plateau, the patient's specific bone profile of their tibia (Figure 3) defines the geometry of the tibial implant. The modular tibial plateau and tibial inserts are designed on a minimal bone cut and provide a smooth articulating surface for the femoral component. Importantly, because the implant is designed for this particular patient, the implant always provides for complete cortical rim coverage, a result that can not be achieved consistently with off-the-shelf implants. The placement of the fixation features for that patient is based on design principles for uni condylar implants.
For additional information on the technologies and products discussed in this article, see MDT online at www.mdtmag.com or ConforMIS at www.conformis.com.
John Slamin is the VP of knee implant engineering for ConforMIS. He can be reached at firstname.lastname@example.org. Daniel Steines, MD, MS is the senior VP of research and development for ConforMIS. He can be reached at email@example.com.