Patient will be weight bearing as tolerated with a crutches or walker initially. Unicompartmental knee arthroplasty uka has a more than 30year history in the treatment of arthritis of one compartment of the tibiofemoral joint. It poses an alternative to high tibial osteotomy and total knee arthroplasty. This procedure is an alternative to total knee replacement for patients whose disease is limited to just one area of the knee. Unicompartmental knee arthroplasty uka also known as unicondylar knee arthroplasty or partial knee replacement is an excellent surgical option for the treatment of isolated medial, lateral and patellofemoral compartment arthritis of the knee, as long term results suggest high patient satisfaction and survivability that rivals total knee arthroplasty tka. Complications of medial unicompartmental knee arthroplasty. Unicompartmental knee arthroplasty joint preservation institute.
Medial unicompartmental knee arthroplasty uka has been a successful option for treatment of arthritis in patients with a healthy. Pdf unicompartmental knee arthroplasty researchgate. Despite this, results of knee replacement registries still show a relatively high revision and failure rate for uka, especially when compared with traditional. Several studies have confirmed the excellent clinical outcome and survival of unicompartmental knee replacement fixed or mobile bearing implants, with a reported tenyear survival greater than 90%. Successful outcomes with uka require proper patient selection, meticulous surgical tech. The young patient and the medial unicompartmental knee. Because of the continuous development of surgical techniques and component design since the early 1970s 2, 3, uka has become a more successful and reliable treatment method for unicompartmental knee osteoarthritis. The knee joint is opened by splitting the joint capsule and the quad tendon if needed. A metaanalysis of unicompartmental knee arthroplasty. The main causes of uka failure include bearing dislocation in mobile designs, aseptic mechanical loosening, polyethylene wear, progression of osteoarthritis oa in unreplaced compartments, infection, impingement, periprosthetic fracture, retaining of cement debris into the joint, arthrofibrosis, and unexplained. Tibiofemoral unicompartmental knee arthroplasty uka is a viable option for patients in whom severe joint damage and complete loss of joint space is present in one tibiofemoral compartment. Pdf the popularity of unicompartmental knee arthroplasty uka for the treatment of isolated compartment osteoarthritis of the knee has risen. Using the criteria given above, about one in four osteoarthritic knees requiring replacement are suitable for oxford medial unicompartmental arthroplasty. Zimmer biomets oxford partial knee is the most widely used partial knee in the world 4.
For over fifty years, unicompartmental knee arthroplasty uka has been used to treat single compartment osteoarthritis of the knee. Unicompartmental knee arthroplasty uka is a procedure designed to relieve pain caused by joint degeneration due to osteoarthritis involving only one compartment of the knee medial, lateral, or patellofemoral. Unicompartmental knee replacement recon orthobullets. Unicompartmental knee replacement protocol the following protocol should be used as a guideline for rehabilitation progression, but may need to be altered pending the nature and extent of the surgical procedure, healing restraints or patient tolerance. Unicompartmental knee arthroplasty joint implant surgery. Surgery, rehabilitation, clinical outcomes second edition, 2017. Partial knee system oxford partial knee zimmer biomet. Total knee arthroplasty tka and unicompartmental knee arthroplasty uka are both used to treat osteoarthritis of the knee. Results of unicompartmental versus total knee replacement. Disease progression after lateral and medial unicondylar knee. Mckeever in the 1950s, followed up by both mckeever and macintosh introducing metallic tibial components that. Unicompartmental knee arthroplasty is one the successful surgical procedures in arthritic knee.
Despite early negative reports, the procedure has evolved into a reliable and safe treatment. Unicompartmental knee replacement current perspectives. Unicompartmental knee arthroplasty uka is now a wellestablished procedure in the armamentarium of an orthopaedic surgeon whose practice deals. Causes of unicompartmental knee arthroplasty failure.