Published online Jul 18, 2015. doi: 10.5312/wjo.v6.i6.469
Peer-review started: March 28, 2015
First decision: April 10, 2015
Revised: April 23, 2015
Accepted: May 16, 2015
Article in press: May 18, 2015
Published online: July 18, 2015
The majority of orthopaedic surgeons even currently agree that primary total arthroplasty in valgus knees with a deformity of more than ten degrees may prove challenging. The unique sets of bone and soft tissue abnormalities that must be addressed at the time of the operation make accurate axis restoration, component orientation and joint stability attainment a difficult task. Understanding the specific pathologic anatomic changes associated with the valgus knee is a prerequisite so as to select the proper surgical method, to optimize component position and restore soft-tissue balance. The purpose of this article is to review the valgus knee anatomical variations, to assess the best pre-operative planning and to evaluate how to choose the grade of constraint of the implant. It will also be underlying the up-to-date main approaches and surgical techniques be proposed in the English literature both for bone cuts and soft tissue management of valgus knees.
Core tip: Knee arthroplasty in valgus deformity more than 10° is an orthopaedic challenge. During the operation, due to the deformities of the bone and soft tissue, there are many difficulties for the surgeon, such as the restoration of the mechanical axis, the orientation of the component and the stability of the knee joint. Our aim is to review the valgus knee anatomical variations, to assess the best approach and surgical technique for bone cuts and soft tissue management of valgus knees so as to succeed the best result.