Three-dimensional Computed Tomography for Determination of Femoral Anteversion in a Cerebral Palsy Model

Abstract

Level II.

Femoral Version and Tibial Torsion are Not Associated With Hip or Knee Arthritis in a Large Osteological Collection

“…1,2,21 Although there have been attempts to quantify both tibial torsion and femoral anteversion on computed tomography and other advanced imaging, these techniques are not a common part of most practitioner's workup because they offer lower interrelator reliability than physical examination and introduce unnecessary testing. 1,7,8,[11][12][13][14][22][23][24][25][26][27][28][29] Treatment practices vary widely regarding the surgical management of these conditions. At our institution patients may be considered for a derotational osteotomy if they are symptomatic and have notable deformity beyond age 6 years for tibial torsion and 8 years for femoral anteversion.…”

Relation of Hip Anteversion, Knee Flexion Angle and Balance in Spastic Diplegic Cerebral Palsied Children

“…Increased FA refers to a structural deformity that could affect the adjustment of foot progression angle [8], and recent studies have reported that it is a cause of gait abnormalities and lower extremity deformities [9]. Biomechanically, increased FA is thought to place the hip abductor muscles at a biomechanical disadvantage during ambulation by decreasing the functional lever arm relative to the hip joint center during the stance phase [10].…”

Femoral version: Comparison among advanced imaging methods

“…In order to establish a reference of the femoral version, 3D CT data were used. A 3D CT measurement has shown to be representative of true version based on femoral specimens and was considered as the true version in this study . This study used a 3D measurement technique which is independent of patient positioning during scanning as it reorients 3D CT models based on the mechanical axis of each individual femur .…”