Episurf Medical announced the start of a comparative investigator-initiated clinical study performed at the Julius Wolff Institute, Charité University Hospital, Berlin. The study with the title ‘X-Ray Fluoroscopic Analysis of knee joint kinematic in open and closed chain activities in patients with Episealer Knee Implants’ will follow up patients that have undergone an Episealer procedure during the period 2015-2017 and assess the joint mobility of the treated knee and compare with healthy, non-treated knees as well as benchmark against knees that have undergone total knee arthroplasty (total knee replacement).