Addition to the joints movements of Ankle..

Hi, =)

After further reading about the ankle anatomy,
I found out that our ankle is not as simple
as we thought. It consists of 2 important
joints inside our ankle joint. "What is that?"
I know you are wondering.

Ok let me continue. Inside our ankle got this
two types of joints that each one supports
different types of movements which combines to
become the 3 movements that I've mentioned before.
I also think that there is only 1 joint inside
our ankle that support all the 3 movements.
But our ankle is not just a simple hinge. It's
way more than that. :)

So this the name of the joints. Introducing the
first joint, Talocrural joints. This joint is
the meeting point of the Tibia bone and the Talus
bone. This joint supports mainly the dorsiflexion
and plantarflexion. It also support a portion of
the total ankle rotation movements. In extreme
condition, such as the patients stumble or fall,
the Talocrural joint can also support a little
inversion and eversion movement.

The next joint is the Subtalar joint. This is the
meeting point of the Talus bone and the calcaneous
bone. This joint support mainly inversion and
eversion and also a portion of ankle rotation
movement.

Combination of these two joints will produce the
complex movements of ankle. In my project I will
focus on the Talocrural joint as that joint will
be the main problem area because of the arthritis.
As we can see that this joint still supports all
three movements in extreme condition. As a
designer, we need to think of the worst scenario
that can happen so that the implant that we design
will not fail and have as long as possible life
cycles.

As for our ankle rotation movement, it is shared
by the Talocrural and the Subtalar joints. I hope
this infomation can help you to understand about our
ankle and to realize that our ankle are so special
and we need to take a very good care of it. :)

So that's all for now, I will add to this blog in
the near future. Until then, have a nice day.


Regards,


Tim

Surgery Surgery..

Now I want to show you something about
the surgery process.I don't mean about
surgery in real but only in simulation.
I am using software M in order to
do it. It's not hard. It's only takes
patience to do it as you will need to
click each of the element to do the
cutting and combining processes.
While doing this activity, I will
surely listen to musics or chating to
avoid myself from feeling boring.. :)

So here is one of the picture while I
am trying to do the surgery. This is
only one of the 3 parts implant and I
need to do at least 4 implants! It
takes me hours to finish this one and
right now I am still doing it while
post this blog, listening to music and
chating.. :)

Have a look:





Each of the elements need to be check
carefully in order to avoid problems
during analysis process later.

Fuh, wish me luck in this.. :)



Thanks,


Regards,



Tim

Positioning the implant

Hi there,

Right now I am gonna show you the picture how I
position the implant in correct orientation with
the desired bone. It takes quite some time to do
it as I need to do the moving and rotating in
manual way. But as time goes by, as you train to
do it many times, you will get better and better.
That's what happen to all the student in this
field and the same with any other field. As we
know, "Practice make Perfect!" and it applies
to any field.

Ok let's get back to the topic... :)
To position the implant in the right spot before
start cutting or surgery the bone, I use M
software. Please take a look at the picture below
to see one of the way to position the implant.

By using this position method also I can make sure
that the implant is suitable for the bone as the
reason any simulation to be done is to reduce error
during the real process. This will help reducing
any cost for mistakes.

Ok then, here is the picture:







Feel free to visit the web advertised by google as
it will gives extra knowledge to you about this
field. :)
See you in the next post.


Regards,



Tim

Final Year Project's topic..

The topic of my final year project is:

"Micromotion and Stability of single-fin Total Ankle Replacement"

So from here we can see that my mission is to find out
what is the micromotion of the implant when force is
applied on the implant. This micromotion is the key of
whether the implant is stabil or not.Here I give some sample of
Implant that have been analyze:





This is the bearing part of the implant.
The color contour will show which part is critical or not.

Please follow through for more info about this..
:)

Regards,


Tim

Wanna see my basic design? :)

Here is it..
My basic design. Which I believe
can support all the basic move.




The below part is the Talar part. The middle one is the Bearing.
The above part is Tibial part. The bearing will be a medium to
divide the movements. Rotational and inversion will happen between
Bearing and Tibial. Flexion will happen between Talar and Bearing.
This is called as the mobile bearing method. The implant can
withstand longer period of usage with this method because of
high wear ressistance.

That's all for now. This is only one of my many design.
I will share about it again later.. :)


Regards,


Tim

Ankle Movements

Do you know that your ankle is one of the complex joint in your body?

Well it does.
So it is a challenge for me to design implants that is according to the normal movements of ankle joints. That is also why Total Ankle Replacement can be considered as new compared to knee and hip joint replacement.

So right now I just want to share about the degree of movements fo our ankles.

Our ankle can move in 3 degree of movements which is flexion, inversion and rotation.
The main movements is flexion as it is very important each time we walk, run and even while we are standing still. The reason for this movements to exist is that to help stabilize our body.

This is Ankle joint.. ^_^

As we can see, this is the area which I will need to focus in my project of designing and analyze the implant. :)

Share about my Final year projects!

Here I will discuss about Total Ankle Replacement which is my final year project during my undergraduate course. I am in charge in designing and analysis of the ankle implant using softwares.

So here I will share anything about my projects which maybe can help you to understand about this topic. Feel free to tell your friends about this blog as it is extra information for you.

For those that have knowledge in this area, I would like to invite you to share your opinion about this matter as I am still in the learning process about this field.
We can chat at the chat box if you don't have the time to post a comment.


Regards,

Tim