Introduction And Rationale - Stryker Hansson Pin System Manual

Introduction
The Hansson™ Pin system, designed
by Professor Lars Ingvar Hansson at
the University of Lund in Sweden,
was developed based on research
concerning the effects of implants on
the blood supply to the femoral head.
Specifically developed for the
treatment of slipped capital femoral
epiphysis, the Hansson Pin system has
been designed to minimise surgical
trauma to the patient and offer secure,
stable fixation with reduced risk of
healing complications for all grades
of fracture.
Twenty years of successful clinical
studies have been carried out to
enhance the Hansson™ Pin System
to its current form.
This work is summarized in 6 theses
and more than 70 published articles.
Rationale
The methodology involves a cylindrical
pin inserted in a drill hole which
attaches to the femoral head via a hook,
providing strong, stable fixation
through a simple and precise procedure.
The drill hole and pin run at right
angles to the growth zone and are,
depending on the degree of slipping,
relatively centrally located in the
femoral neck and head.
The pin is 10-20mm longer than the
drill hole to allow continued growth
in the length of the femoral neck.
Slips of up to 60° can be stabilised
by osteosynthesis.
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