title: Screw fixation in the femoral head. Pull-out tests in cadavers.
abstract: 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.
authors.affiliation: Department of Orthopedics, Frederiksberg Hospital, Copenhagen, Denmark.
authors.forename: B F
authors.initials: BF
authors.lastname: Iversen
authors.forename: J
authors.initials: J
authors.lastname: Stürup
authors.forename: P
authors.initials: P
authors.lastname: Lyndrup
authors.forename: N C
authors.initials: NC
authors.lastname: Jensen
authors.forename: M H
authors.initials: MH
authors.lastname: Therkilden
mesh_terms: 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
chemical_list: D008903:Minerals