Primary fit of the Lord cementless total hip. A geometric study in cadavers.
Two Lord prostheses, bilaterally implanted in cadavers, were sectioned. The contact areas between bone and prosthesis were studied and measured using a specially developed reproducible method. Primary fixation of the femoral components appeared to be based principally on wedging of the prosthetic stem in the femoral shaft with a rather small contact surface. In both acetabuli the screw threads of the rings were only marginally in contact with the acetabular bone.
Schimmel
J W
JW
Department of Orthopedics, University of Nijmegen, The Netherlands.
Huiskes
R
R
D000077:Acetabulum / Q000473:pathology; D005269:Femur / Q000473:pathology; D006621:Hip Joint / Q000000981:diagnostic imaging / Q000473:pathology*; D006622:Hip Prosthesis; D006801:Humans; D011859:Radiography; D013314:Stress, Mechanical