NO ROBOT REQUIRED WHEN USING PATIENT-SPECIFIC INSTRUMENTS? (Orthopedics This Week)
Researchers from Imperial College London and The Royal College of Surgeons in Ireland set out to test a low-cost patient-specific instrument (PSI) design.
Their work, “A novel patient-specific instrument design can deliver robotic level accuracy in unicompartmental knee arthroplasty,” was published in the September 10, 2019 edition of The Knee.
Co-author Justin P. Cobb, M.Ch.(Oxon) is chair, Section of Orthopaedics at the MSk Lab at Imperial College London. He commented to OTW, “We developed this approach based on our earlier robotic experience, which convincingly demonstrated that accuracy improved outcomes, based upon plans made from CT—something that we had been doing for a long time—since the first trials of the Acrobot—the predecessor of the Mako robot—back in the last century.”
Working with 30 patients who underwent medial unicompartmental knee arthroplasty (UKA), the researchers planned the tibial component position with a CT scan and compared it to a postop day one CT scan to assess the difference between the planned and achieved positions.
Dr. Cobb told OTW, “What was novel wa...
