The development of a physiological hip prosthesis: evaluation of the strains after implantation of a prototype of hip implant: experiment in a dry femur.
Based upon previous research on the relation between hip prosthesis designs and strain distributions in a proximal femur model, a prototype of a "physiological" hip prosthesis was designed and manufactured. Strain gauge measurements on a dry femur before and after implantation of this prosthesis were made in different loading conditions simulating one-legged stance with and without torsional loading and two-legged stance. The strains in the outer cortex were within 10% of the physiological values along the whole medial side in all measurement conditions.
Vander Sloten
J
J
Faculty of Engineering, Department of Mechanical Engineering, Katholieke Universiteit Leuven, Heverlee, Belgium.
Labey
L
L
Van Audekercke
R
R
Van der Perre
G
G
D001696:Biomechanical Phenomena; D016723:Bone Remodeling / Q000502:physiology; D005269:Femur / Q000502:physiology*; D006622:Hip Prosthesis / Q000009:adverse effects / Q000592:standards*; D006801:Humans; D008422:Materials Testing; D011474:Prosthesis Design; D013314:Stress, Mechanical; D016474:Weight-Bearing