Navigation-Assisted Total Knee Arthroplasty for Osteoarthritis with Extra-Articular Femoral Deformity andor Retained Hardware

Abstract EN

Total knee arthroplasty (TKA) for osteoarthritis (OA) patients with extra-articular deformity is still challenging because angular deformity, canal sclerosis, or the retained hardware that precludes the use of the traditional intramedullary guide.

In addition, atypical bone cut for intra-articular correction leads to imbalanced soft tissue gap.

Furthermore, corrective osteotomy should be considered for severe deformity or para-articular deformity cases.

Recently, navigation-assisted TKA has been reported to increase the accuracy of prosthetic positioning and limb alignment.

This system can calculate mechanical axis regardless of extra-articular deformity, canal sclerosis, or retained hardware.

Accordingly, navigation surgery has been considered to be a powerful option especially in TKAs with extra-articular deformity cases.

Here, we report 3 successful navigation-assisted TKAs for osteoarthritis with extra-articular deformities and/or retained hardware.

Navigation-assisted TKA is an effective and reliable alternative for patients with extra-articular deformities.