04175555 is referenced by 413 patents and cites 4 patents.

A bone screw is provided with screw threads which are like-handed but of different pitch on its respective leading and trailing ends. In the more favored embodiment, the pitch of the leading screw thread exceeds that of the trailing screw thread. Such a screw may be used to hold portions of a fractured bone in compressive engagement.

Title
Bone screw
Application Number
5/880099
Publication Number
4175555
Application Date
February 22, 1978
Publication Date
November 27, 1979
Inventor
Timothy J Herbert
Redfern
AU
Agent
Pravel Gambrell Hewitt Kirk Kimball & Dodge
Assignee
Interfix
HK
IPC
A61B 17/18
A61F 5/04
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