Knee arthroplasty

Quantitative Evaluation of the Thickness of the Available Manipulation Volume Inside the Knee Joint Capsule for Minimally Invasive Robotic Unicondylar Knee Arthroplasty

Author(s): Manuela Eugster, Esther Zoller, Philipp Krenn, Sandra Blache, Niklaus F. Friederich, Magdalena Muller-Gerbl, Philippe C. Cattin, Georg Rauter
Quantitative Evaluation of the Thickness of the Available Manipulation Volume Inside the Knee Joint Capsule for Minimally Invasive Robotic Unicondylar Knee Arthroplasty 170 177 IEEE Transactions on Biomedical Engineering (TBME)
The development of novel robotic surgical instruments such as a laser-cutting tool for minimally invasive unicompartmental knee arthroplasty (UKA) is challenging when quantitative requirements are missing. Therefore, we developed and applied a method to quantify the volume inside the knee joint available to manipulate robotic surgical instruments during minimally invasive procedures. We 1) injected contrast solution into nine cadaveric knees, 2) performed and segmented computed tomography scans, and 3) investigated the size and distribution of the injected contrast solution’s volume inside the knee joints. The injected contrast solution’s volume represented the available manipulation space for minimally invasive surgical instruments. read more