Synthes LISS DF User manual

LISS DF. The less invasive stabilization
system for distal femur fractures.
Technique Guide
This publication is not intended for
distribution in the USA.
Instruments and implants
approved by the AO Foundation

Introduction
Surgical Technique
Product Information
Bibliography 44
Less Invasive Stabilization System LISS 2
AO Principles 4
Indications 5
Clinical Cases 6
Preoperative Planning 8
Preparation 11
Plate Insertion 16
– Option A Insertion of Self-Drilling Monocortical Screws 20
– Option B Insertion of Self-Tapping Bicortical Screws 25
– Option C Insertion of Periprosthetic Screws 29
– Option: Pulling Device (“Whirly Bird”) 32
Implant Removal 33
Tips 35
Instruments for Minimally Invasive Surgery 36
Implants 37
Instruments 39
Sets 42
Image intensifier control
Warning
This description is not sufficient for immediate application of the instrumentation.
Instruction by a surgeon experienced in handling this instrumentation is highly
recommended.
Processing, eprocessing, Care and Maintenance
For general guidelines, function control and dismantling of multi-part instruments,
as well as processing guidelines for implants, please contact your local sales
representative or refer to: www.synthes.com/reprocessing
Table of Contents
DePuy Synthes 1
Stardrive
Hex drive

2 DePuy Synthes LISS DF Technique Guide
LISS DF. The less invasive stabilization
system for distal femur fractures.
Less invasive procedure
− A radiolucent handle facilitates the
insertion of the plate as well as accu-
rate and hassle-free percutaneous
placement of the screws.
− Additional instrumentation facilitate
indirect reduction.
Anatomically precontoured low
profile plates
–Intended to reduce soft tissue
problems
– No need for plate contouring
Note: Excessive and repetitive bending is not
recommended as it may weaken the plate.
Angular stability
– Prevents screw loosening as well
as primary and secondary loss
of reduction
– Allows early functional mobilization
– As an internal fixator the plate
preserves bone vascularization
– Offers improved purchase in osteo-
porotic bone
Wide variety of screws
– Self-tapping or self-drilling locking
screws
– Periprosthetic locking screws with
blunt tip for periprosthetic fractures
– Cortex screws
– Available in stainless steel and
titanium
Wide variety of anatomically
precontoured plates
– LCP DF and PLT plates
– Available in stainless steel and
titanium alloy (TAN)
– Left and right versions
– LCP DF plates in eight lengths with
5 to 19 holes in the shaft
– Long LCP DF plates (15 to 19 holes)
available in sterile only

DePuy Synthes 3
LISS instrumentation for Stardrive
and Hex drive
The torque-limiting screwdriver, the
screwdriver shaft and the cleaning
instrument are available for screws with
Stardrive and Hex drive.