Profil du cortex fémoral distal antérieur : une étude cadavérique assistée par ordinateur

Abstract

Accurate positioning and sizing of the femoral component in total knee arthroplasty is important for stability and functional outcome. The purpose of the study was to evaluate the bony profiles of the distal anterior femoral cortex. Anatomical bony landmarks on fifty adult cadaveric femora were collected. These points were used to identify the distal anterior femoral cortex surface (AFC). There were four anterior cortex profiles: (a) lateral side highest and medial side lowest (56%); (b) lowest height in median area (26%); (c) highest height in median area (14%); (d) medial side highest and lateral side lowest (4%). Anterior referencing in TKA needs to represent the anterior shape of the distal femoral cortex to prevent notching, femoro-patellar overstuffing or flexion gap mismanagement. Due to the variability of the AFC, surgeons have to carefully select the anterior femoral cortex landmark to be sure of avoiding complications. Level IV. Basic research.