Internal vascularity of the scaphoid in cadavers after insertion of the Herbert screw.
This article describes the effects of various operative exposures for insertion of the Herbert screw on the internal vascularity of the scaphoid. Vessels supplying the proximal 70% to 80% of the scaphoid were intact in all specimens except one, which had a combined palmar and dorsal. approach. Vessels supplying the tubercle and the distal 20%-30% were disrupted in five of 18 specimens undergoing the palmar approach. The palmar approach did not disrupt the significant dorsal blood supply, and the dorsal approach was safe provided care was taken to preserve the visible dorsal vascular leash.
Botte
M J
MJ
University of California, San Diego Medical Center 92103.
Mortensen
W W
WW
Gelberman
R H
RH
Rhoades
C E
CE
Gellman
H
H
D001863:Bone Screws; D002102:Cadaver; D002348:Carpal Bones / Q000098:blood supply* / Q000293:injuries / Q000601:surgery; D005593:Fracture Fixation, Internal / Q000379:methods*; D006801:Humans