Screw fixation in the femoral head. Pull-out tests in cadavers.
The aim of our study was to determine whether a subchondral or a capital position of the thread of the gliding screw provided the best fixation. A pull-out test was performed on pairs of femoral neck cadaver specimens. The capital position of the thread provided the best fixation in all the pairs. A correlation was found between bone mineral content of the femoral heads and the holding power of the screws in both positions.
Iversen
B F
BF
Department of Orthopedics, Frederiksberg Hospital, Copenhagen, Denmark.
Stürup
J
J
Lyndrup
P
P
Jensen
N C
NC
Therkilden
M H
MH
D000368:Aged; D000369:Aged, 80 and over; D001696:Biomechanical Phenomena; D001863:Bone Screws; D005260:Female; D005270:Femur Head / Q000032:analysis / Q000601:surgery*; D005272:Femur Neck / Q000032:analysis / Q000601:surgery; D006801:Humans; D008875:Middle Aged; D008903:Minerals / Q000032:analysis
D008903:Minerals