New York Medical College

2005 press releases



VALHALLA, NY December 14, 2005—Sound Shore Medical Center of Westchester in New Rochelle, N.Y., a teaching affiliate of New York Medical College, is the first facility in the county to use a new digital computer-assisted navigation device in orthopaedic procedures. Steven B. Zelicof, M.D., Ph.D., associate professor of clinical orthopaedic surgery at the College and chief of orthopaedic surgery at Sound Shore, says the device makes it easier, more precise and less painful to perform surgery to replace an arthritic knee.

Known as the Stryker Navigation system and developed by Stryker Leibinger Orthopaedics Division of the Stryker Corporation of Mahwah, N.J., the device helps surgeons to precisely align and orient knee implants with the patient’s anatomy. An infrared camera, special tracking instruments and unique software continually monitor the alignment of implant cutting guides and components in relation to the patient’s anatomy. This means a surgeon can get more precise cuts without having to insert a long rod into the thigh bone to help position the implant. The three patients operated on thus far at Sound Shore benefited from this advanced technology which may have significantly reduced post-operative complications such as less bleeding, swelling and pain.

“It’s like having a global positioning system in the operating room,” says Dr. Zelicof. “With it we can give a patient a new knee that has optimal strength and stability, even in difficult anatomic situations. The new technology will greatly enhance our ability to restore range of motion, overall function and return patients more quickly to normal activity and, possibly add to the implant’s longevity.”

The navigation system can also be applied to minimally invasive knee surgery, where it allows for more accurate implant alignment with less injury to the soft tissues around the knee.