4
DePuy Synthes
LISS DF
Technique Guide
In 1958, the AO formulated four basic principles, which have
become the guidelines for internal fixation:
1
Anatomic reduction
Fixation of extra- and intra-articular distal femur fractures
with the precontoured LCP DF plates allows for anatomic
reduction.
Stable fixation
Locking holes allow fixation with locking screws for angular
stability. A fixed-angle construct is advantageous in osteo-
porotic bone and multifragment fractures where traditional
screw purchase is compromised.
Preservation of blood supply
The LISS approach with its proven success preserves the
blood supply through a minimally invasive surgical technique
and minimal bone-to-plate contact.
Early, active mobilization
LISS provides stable fracture fixation with minimal trauma to
the vascular supply. This helps improve the environment for
bone healing, accelerating the patient’s return to previous
mobility and function.
AO Principles
1
Müller ME, Allgöwer M, Schneider R, Willenegger H (1991) AO Manual of
Internal Fixation. 3rd Edition. Berlin: Springer
