Total Knee Arthroplaty – New  Personalized Modern Systems



In “Athens Medical Group” and especially in “Iatriko Psychikou Clinic” new modern personalized “Custom Knee Arthroplasty” is applied.  This modern knee arthroplasty system is the latest one in navigation technology where personalised custom guides are prepared before surgery for each patient on a model designed from an MRI or three dimensional CT reconstruction of the patient osteoarthritic knee. This allows to the surgeon to place the knee arthroplasty system at the correct position during surgery with minimally invasive technique. The personalized guides have been prepared and designed in detail preoperatively at factory computers – “robots” and not during surgery as it was made until now with the so called “robotic” or “computer assisted” arthroplasty systems.  

This new modern knee arthroplasty system and especially the “SIGNATURE” or “ONEFIT” type, is mainly used in our Orthopedic Clinic. The surgeon, instead of looking with many tools and guides on the patient during surgery to place the implants or by using difficultly installed intraoperative Computer assisted – ” Robot ” system, with a  small incision, minimal invasiveness, very less time and without injuring the canals of the femoral and tibial bones, places very easily the ideal implants at the ideal position. The factory send also to the surgeon before surgery for study the exact three-dimensional copy of the bony articular surfaces with details of the bones deformity, the osteophytes shade etc. All are designed and programmed with absolute precision before surgery. With this new and revolutionary “CUSTOM” knee arthroplasty system, especially the “SIGNATURE” or “ONEFIT” type, which we use in our patients, perfect implants size is selected preoperatively and mechanical axis correction, ideal placement of the implants and maximum range of motion are easily achieved in order the patients to be able to return to their advance activities and sports as soon as possible. Similar “preoperatively prepared” – CUSTOM systems can now be used in difficult cases of knee hemiarthroplasties and hip arthroplasties.

Modern partial knee arthroplasties are also now used with mobile artificial articular surfaces – “artificial meniscus”, for medial compartment of the knee joint lesions and specilal “mini” partial arthroplasties for patello-femoral osteoathritis are in our Clinic. This is the future of the arthroplasties! Arthroplasties by using preoperatively ready templates, guides and personalized design, small incision and invasiveness, minimal intraoperative procedure, small time anaesthesia and sedation without intracanal tibial or femoral bleeding and injury to the bones and perfect placement of implants. The results are 1. ideal postoperative range of motion, 2. ideal correction of the leg, 3. significant reduction of postoperative pain, 4. direct and independent ambulation with full wait bearing, 5. excellent functional outcome and 6. permanent fixation of the implants! All are designed and programmed by computers and “robots ” preoperatively and not during surgery!

In some patients we use the new partial patellofemoral artrhoplasty (Stryker)