After a first phase of doubt, knee prostheses The type of prosthetic design and above all like hip prostheses revealed their effectiveness the presence ofa mobile surface requires ofthe with a more than 90% survival rate after 15 to surgeon to obtain, during surgery, correct bal 20 years. ancing ofthe soft tissues, thus allowingfor joint Currently, more than 200,000 knee prosthe kinematics that are compatible with joint func ses are implanted annually in the United States, tion, suited to carrying out common daily activ and about 20,000 knees are revised. and above all compatible with prosthetic ities, The success of surgical treatment is essen materials, in order to minimize polyethylene tially due to threefactors: the correctnessofsur wear and to guarantee good fixation of the im gical indications, the correct choice of the type plant. ofimplant, and the correct surgical technique. A rise in indications for the treatment of de The development ofstudies on biomechanics, generative pathology of the knee through the on prosthetic design, and on material used, have prosthesis has inevitably led to a rise in surgical led to the progressive evolution of implants, and mechanical complications, and thus to a rise making them more and more suited to increasing in the numberofrevisions. the survival rate. Thus, a wide view of the most common com Ifthe criteria that guide surgical indications plications and surgical techniques that may be and surgical method are mostly standardized, adopted in these cases is presented.
Review of modern surgical techniques and materialsCritical account of the most common complicationsEditors and authors from leading specialized clinics