A gap balancing technique for adjusting the component gap in total knee arthroplasty using a navigation system.

ABSTRACT:

Introduction

Recently, some studies showed assessment of the component gap is important for determination of the implant-inserted condition during total knee arthroplasty (TKA). We perform the modified gap technique with adjustment of the virtual gap which estimated by computer-aided design (CAD) using navigation system. The purpose of this study was to compare the virtual gap (CAD-gap) with the actual gap after inserting a femoral trial component (Trial-gap), and examine the usefulness of the surgical technique.

Materials and methods

The subjects were 35 patients who underwent primary TKA using a navigation system and posterior-stabilized type TKA. The surgical procedure was to produce an extension gap, confirm the flexed CAD-gap on the navigation screen based on CAD data,

SUBMITTER: Takagi H 

PROVIDER: S-EPMC7203512 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature