Title: Pedography for functional diagnostics and therapy control of Diabetic Feet
1 Pedography for functional diagnostics and
therapy control of Diabetic Feet
- novel biomechanics lab
- Ismaninger Straße 51
- D - 81675 Munich
- www.novel.de
Ó novelgmbh 2004
2Pedography what does this mean?
- visual observation just shows the contact of
the foot with the floor
- foot has inhomogeneous internal structure
(bones, muscules, tendons, ligaments etc.)
- results in an inhomogeneous loading
pattern of the foot, which is recorded as
a pressure distribution,
3Pedography what does this mean?
- this pressure distribution is changing
during the roll over process,
- is determined by the function of the
different anatomical structures (heel, toes
etc. incl. their muscles activities),
- the measurement of this pressure
distribution underneath the foot for
functional diagnostics is called
Pedography
4Pedography what is it used for?
- for early recognition of areas on high risk to
ulcerate for patients with Diabetic Foot
Syndrome, - for designing of orthotics,
- prove the pressure reduction of orthotics and
therapeutic footwear
5emed Pedography The system
- the emed Pedography system consists of a
platform with several thousand calibrated
pressure sensors,
- each sensor will be scanned up to 400 times per
second,
- the patient is walking barefoot across the
platform,
- the data are transmitted to the PC for further
scientific data evaluation
www.novel.de
6emed Pedography The dynamic measurement
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7emed Pedography Why doing a dynamic measurement?
static dynamic
Clear difference in peak pressure and loading
pattern! Dynamic loading is much higher and
reflects load during walking.
8emed Pedography The results Maximum Pressure
Pictures (MPP) for classification of foot types
common roll over pes
cavus pes planovalgus
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9emed Pedography The results Patients with
Diabetic Foot Syndrome
Charcot foot
10Designof a pressure reducing orthotic based on
emed Pedography
- starting point pre-designed blank
- dynamic pressure distribution during barefoot
walking will be overlayed, - structural information about foot shape can be
added too, - based on this a new orthotic is desiged
11The orthotic is manufactured by a CAM system
12Therapy Control by pedar In-shoe Pedography
- control of shoe and orthotic treatment,
- gait analysis,
- motivation of patient
- max. 256 (1,024) sensors
- 20.000 sen./s 100 pictures/s
- 20 600 kPa, accuracy better as 5
13 Example for creation of a pressure
reducingorthotic proofed with pedar in-shoe
Pedography original footbed
14 Example for creation of a pressure
reducingorthotic proofed with pedar in-shoe
Pedography original footbed
with orthotic
15 Example for creation of a pressure
reducingorthotic proofed with pedar in-shoe
Pedography original footbed
with orthotic with optimized one
16Summary for Pedography
- the emed pedographic platform is used for early
diagnosis of neuropathic foot problems and
detection of high- risk pressure points, - for the prove of pressure reduction of the
orthotic the pedar in shoe system is used - Both systems complement each other
www.novel.de