Physio, I have a question for any who want/care to answer. What is a fixation implant for meniscus tears? Is it screws for a repair of the remaining tissue or is it a prosthetic device meant to "replace" the meniscus? Anyway, the study below discusses gapping and fixation implants in knees. Jason http://www.sciencedirect.com/science/article/B6T59-48CNN71-2/1/f8474f4457137aa65f98699dab6ca00a