title: A biomechanical analysis of intrascaphoid compression using the 3.00 mm Synthes cannulated screw and threaded washer: an in vitro cadaveric study.
abstract: This study evaluated the compressive capabilities of the 3.0 mm Synthes cannulated screw and threaded washer. A transverse osteotomy was performed at the waist of eight cadaveric scaphoids and a custom-designed load cell was inserted before internal fixion with a 3.0 mm cannulated screw and threaded washer. The mean intrascaphoid compression achieved was 108 (SD, 60) N. This compressive force is comparable to that produced by standard cortical screws.
authors.affiliation: Bioengineering Research Laboratory, London, Ontario, Canada.
authors.forename: I K
authors.initials: IK
authors.lastname: Lo
authors.forename: G J
authors.initials: GJ
authors.lastname: King
authors.forename: S D
authors.initials: SD
authors.lastname: Patterson
authors.forename: J A
authors.initials: JA
authors.lastname: Johnson
authors.forename: D G
authors.initials: DG
authors.lastname: Chess
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001696:Biomechanical Phenomena; D001863:Bone Screws; D004867:Equipment Design; D005260:Female; D005593:Fracture Fixation, Internal / Q000295:instrumentation*; D006801:Humans; D066298:In Vitro Techniques; D008297:Male; D008875:Middle Aged; D021361:Scaphoid Bone / Q000293:injuries*