Zimmer Biomet Holdings recently unveiled X-PSI Knee System, the company’s X-ray-based patient-specific instrument for precision knee implant positioning, which will expand patient access to patient-specific implant care.
"The growing use of MRI and CT-based planning software to customize implant placement has meaningfully improved patient outcomes in joint replacement surgery," Dr. Raju S. Ghate, NorthShore University HealthSystem orthopedic surgeon and the lead investigator of a study on the X-PSI Knee System, said in a news release. "Our study found that X-PSI Knee System, which uses X-ray imaging with Zimmer Biomet's Patient Specific Instruments Planner, yields comparably high implant placement accuracy as MRI and CT-based systems, while significantly improving accessibility and clinical utility to a broader patient population."
Preoperative planning based on MRI and CT imaging has shown promising results, but its application has been limited because MRI and CT imaging are not typically used before knee replacement surgery, according to the release. To expand the application of this technology, Zimmer Biomet Holdings developed a system that achieves similar results using X-ray images.
"[V]irtually every candidate for joint replacement surgery undergoes X-ray imaging, so we are thrilled to debut the first CE Marked, X-ray-based Patient Specific Instrument System, and extend the benefits of customized surgical planning to joint replacement patients across the European Union,” Dan Williamson, Zimmer Biomet Group's president of joint reconstruction, said in the release.