Patent ID: 7799062
Filing Date: 2010-09-21
Classification: A61B

Abstract:
1. An orthopedic system comprising: an orthopedic implant having at least one aperture with internal threads; an orthopedic screw having a head; a first portion in communication with said head, said first portion having a shank with a first shank diameter and a first thread extending radially outward from said shank to define a thread diameter, said orthopedic screw having a second portion having a shank with a second shank diameter and a second thread extending radially outward from said second shank to define a second thread diameter, said orthopedic screw having a distal tip, said second shank diameter and said second thread diameter being smaller than said first shank diameter and said first thread diameter respectively; said second thread having a thread height and a pitch, and said first thread having a thread height and a pitch, wherein said thread height and pitch of said first thread are substantially equal to said thread height and pitch of said second thread, respectively; wherein said second thread is adapted to be received in said aperture of said orthopedic implant and communicate with said internal threads of said orthopedic implant to maintain correct alignment between said orthopedic screw and said orthopedic implant, said first thread and said first shank diameter of said first portion being adapted to fully engage said internal threads of said at least one aperture of said orthopedic implant; wherein said second thread diameter is greater than said first shank diameter; and wherein the first and second threads have the same thread profile.