Pelvic & Acetabular Fracture Treatment Solutions - Stryker

Apex Pin Fixation
Technical Details –
Self-Drilling/Self-Tapping Apex Pin
Pin Design
The self-drilling tip of the Apex Pin
acts like a new, sharp drill bit every
time, and therefore, pre-drilling is
not necessary. Combined with unique
cutting geometry, this one-step
procedure allows the pin to maintain a
reduced insertion temperature due to
decreased friction.
A double helical flute creates a
homogeneous thread profile that
transports bone chips out of the drill
hole for improved pin/bone interface.
The U-shaped thread maximizes contact
with the bone and controls stress
distribution on the pin/bone interface
by optimizing radial tension.
The highly advanced cutting geometry
allows for more precise pin insertion
with reduced insertion time and
temperature for optimal performance.
The cylindrical thread is designed for
good bone purchase, and pull-out
resistance 1, 2, 3 , and offers the possibility
to backing out the pin without
compromising fixation.
1 Stryker Test Report BML 10-183; Pull-out test for
several Apex pins, Labor job number V10219; 2010.
2 Stryker Test Report RA 05-168; Clinical
Assessment - Hoffmann II; Hoffmann II Compact
and Apex Pins; 2010.
3 Fachhochschule Hamburg; Vergleichende biomechanische
Untersuchung von “Fixateur Externe-Pins”;
1997.
U-shaped thread
Self-tapping action
Self-drilling tip
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