Lateral unicompartmental knee arthroplasty:A review  

作　　者：Scott D Buzin Jeffrey A Geller Richard S Yoon William Macaulay 

机构地区：[1]Department of Orthopaedics,Jersey City Medical Center,Jersey City,NJ 07302,United States [2]New York Presbyterian,Columbia University,Medical Center,New York,NY 10032,United States [3]Department of Orthopaedic Surgery,Jersey City Medical Center-RWJBarnabas Health,Jersey City,NJ 07302,United States [4]Department of Orthopaedic Surgery,NYU Langone Health,New York,NY 10016,United States

出　　处：《World Journal of Orthopedics》2021年第4期197-206,共10页世界骨科杂志（英文版）

摘　　要：Isolated lateral compartment osteoarthritis of the knee is a rare condition affecting approximately 1%of the population,which is ten times less common than osteoarthritis affecting only the medial compartment.Unicompartmental knee arthroplasty(UKA)has many potential advantages over total knee arthroplasty.The benefits of UKA include a smaller incision,preservation of more native tissue(including cruciate ligaments and bone),decreased blood loss,and better overall proprioception.When UKA was first introduced in the 1970s,the outcomes of medial UKA(MUKA)were poor,but the few cases of lateral UKA(LUKA)showed promise.Since that time,there has been a relative paucity of literature focused specifically on LUKA given it is a rare procedure.Refinements in patient selection criteria,implant design,and surgical technique have been made leading to increased popularity.A review of the recent literature reveals that LUKA is associated with excellent long-term clinical outcomes and implant survivorship when performed in properly selected patients.Implant design options include fixed vs mobile bearing as well as metal backed vs all polyethylene tibial component,with improved outcomes noted with fixed bearing designs.Three reasons cited for revision(i.e.,fracture of the femoral component,fracture of the tibial component,and valgus malalignment)had been reported in past literature but not recently.Presently,while rare,the most common cause of failure and need for revision are osteoarthritis progression and aseptic loosening.Despite the need for an occasional revision procedure,the survivorship of LUKA is comparable to MUKA,although it should be noted that outcomes of MUKA have been notably varied.Continued pursuit of improved techniques and implant designs will continue to show LUKA to be an excellent procedure for appropriately indicated patients.

关 键 词：UNICOMPARTMENTAL KNEE ARTHROPLASTY LATERAL REVIEW OUTCOMES 

分 类 号：R687.4[医药卫生—骨科学]