Subtalar Arthroereisis Explained

What is Subtalar

Arthroereisis?

Subtalar Arthroereisis

A surgical procedure where something is placed

below the talus (ankle bone)with the intended function

to block or limit excessive talar motion.

Sub-talar Arthro - ereisis(below the talus/ankle bone) (joint) (blocking/ear-re-sis)

Specifically,

there is a blocking/limiting of motion of the lateral process of the talus.

Lateral process

The device acts at the lateral/superficial outer half of the naturally occurring space

below the talus – the sinus portion of the sinus tarsi.

A subtalar arthroereisis device is:placed into a drilled-out hole in the calcaneus

or simply inserted into the sinus tarsi space until the leading edge of the

device reaches the half-way point of the neck of the talus.

Either way,

subtalar arthroereisis blocks or limits motion

of the lateral process of the talus.

This limiting/blocking stops the forward/inward rotation of the lateral process of the talus which in turn limits or reduces the amount of pronation of

the talotarsal/subtalar joint complex.

Motion stops here

Subtalar Arthroereisis

is not a new idea.The procedure originated in the 1940s.

Subtalar Arthroereisis Devices

have undergone many decades of design changes to try to decrease the

removal rate.

Unfortunately, even with all the device design changes, the subtalar arthroereisis devices have a higher

than accepted removal ratewhich makes this procedure questionable in the

minds of most foot surgeons.

Why?

Scientific evidence is available, but not

compelling enough to take this procedure to the next level.

What does the scientific evidence tell us?

Subtalar arthroereisis should be used in conjunction with other surgical procedures.

38% to 100% of subtalar arthroereisis procedures results in the removal of the

stabilization device.

This is due to• device displacement• patient intolerance/pain• failure of the device to achieve talar

stability• mandate for device removal within

12-18 months after placement

What is the primary underlying cause that has led to the failure of what could

be “the most powerful orthopedic surgery” performed on the human body?

It stems from -

the biomechanical principals of the talotarsal joint complex.

So, where the implement/device is placed

andhow the implement/device acts

to prevent the abnormal talotarsal motion.

Biomechanical principals of the talotarsal joint complex.

Talotarsal Joint Complexhas 2 primary complex motions

Supination• Talus externally/laterally

rotates on the calcaneus/navicular (combined with slight dorsiflexion and eversion).

• A stable/normal talotarsal joint should have 2/3 supinatory motion.

• Acts to lock the joints of the foot to create a stable lever-arm.

Pronation• Talus internally/medially

rotates on the calcaneus/navicular (combined with slight plantarflexion and inversion).

• A stabile/normal talotarsal joint should have 1/3 pronatory motion.

• Acts to unlock the foot to adapt to the weightbearing surface.

Talotarsal Joint Dislocation/Displacement

Leads to a longer period of pronation. This equals instability of the foot bones when they should be stable and getting ready to propel the foot.

Talotarsal Joint Dislocation/Displacement

This is a pathologic condition where the talus is partially dislocating on the tarsal mechanism

(calcaneus/navicular).

This is a chronic disease process that will lead to a vicious path of destruction.

It requires physical intervention, it will not resolve on its own.

Talotarsal dislocation/displacement not only destroys the structures within the foot and

ankle,

talotarsal dislocation/displacement leads to the damage of the knees, hips, back and neck.

Excessive abnormal forces are acting on the structures within the foot, knees, hips, pelvis,

back and neck while standing, walking or running.

The average person has taken over 120,000,000 stepsby 50 years of age.

Eventually, a critical threshold point is reached where the

tissues simply cannot compensate for these excessive,

abnormal forces.

Pain is a warning signal from our body that something is wrong.

Unfortunately, we ignore or just cover-up the symptoms, meanwhile more and more damage is continuously being

inflicted every single day.

The underlying etiology is the excessive talotarsal joint dislocation/displacement.

A subtalar arthroereisis device attempts to fix this problem.

However, subtalar arthroereisis devicesFUNCTION AGAINST

the natural biomechanical motions of the talotarsal complex.

The lateral process of the talus smashes into the upper back portion

of the implant/deviceand pushes it forward…

…until the front/lower end of the device hits the portion of the calcaneal floor that forms

the anterior chamber of the sinus tarsi.

This motion occurs, on average, 7,000 times a day.

Day after day.

Week after week.

Month after month.

Subtalar arthroereisis devices are like placing an octagonal tire on your car.

It kind of works, it just doesn’t work efficiently

and therefore doesn’t last long.

Ready for the Paradigm Shift

in theextra-osseous stabilization of

talotarsal joint displacement?

Scientifically proven

time tested

game-changing

“The most powerful minimal incision

foot and ankle procedure.”

Introducingthe

non-arthroereisisprocedure…

Extra-osseousTalotarsal Internal Fixation Device

functions like a round tire on a car.

works WITH

the normal biomechanics of the talotarsal complex

simply acts as an internal stent to maintain the opening of the sinus tarsi.

Just like an arterial stent keeps an artery open.

does not limit or block motion!

simply restores the normal amount of talotarsal joint motion.

has been scientifically proven to:

Scientific/Evidence Base for

- Decrease strain to the posterior tibial tendon Decrease strain to the plantar fascia

- Decrease strain to tibial posterior nerve- Decrease pressures within tarsal tunnel/porta pedis- Improve post-procedure functional scores- Normalize abnormal radiographic correction/angles- Lower device removal rate <6% - stabilize the talotarsal joint displacement- decrease forces acting on the medial column - Internally restore navicular height- Improve/normalize plantar pressure/forces

Refuse to ignore or cover-up the

symptoms of talotarsal joint displacement!

Let’s fix the problem at its root.

www.HyProCure.com

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