Development of Bioabsorbable Interference Screws: How Biomaterials Composition and Clinical and Retrieval Studies Influence the Innovative Screw Design and Manufacturing Processes - Biologically Responsive Biomaterials for Tissue Engineering - page 114

perforated fl utes Shape screwdriver Screw head single helix Name/producer

Cannulated No Cylindrical Star (torx) Round Reverse

threads for
right knee

Biosure—HA—
Smith &
Nephew

Cannulated No Wedge tip Square Small head Fully threaded Biosteon—

Stryker
Endoscopy

Cannulated No Cylindrical

and
tapered
at the
distal
end

Tri-Lobe
driver
interface

Low-pro fi le
rounded
head

Constant pitch Matryx—

Conmed
Linvatec

Cannulated Self-

tap-
ping/1
fl ute

Tapered Headless Variable pitch/

single
helix/fully
threaded

Biotrak—
Acumed

(continued)