Responses to Tachdijian Inquiry

Responses to Tachdijian Inquiry

Juan Manuel Castro

8/31/2000

Here are the responses I have received on my inquiry regarding the
Tachdijian Orthosis.


Juan,

The Tachdijian Orthosis was once widely used for the treatment of
Legg
Perthes. This orthosis is no longer used. Attached is a photo of the
apparatus.
===================

Juan:

 A Tachdijan orthois is an orthosis for treatment of Legg Perthes.
Sometimes
 it is referred to as a Trilateral Orthosis. The orthosis maintains
the hip
 in abduction utilizing a weight bearing type ischial brim and and
medial
 metal super structure. The metal super structure is attached to the
ischial brim
 and extends to the floor with a patten bottom on the distal aspect.
If you have
 access to an illustrated guide to the HCPCS L Codes,review code
L1720.It provides
 an adequate illustration and description.
========================
It is also called a trilateral orthosis. I t has a laminated or
plastic
girdle with ischium weight bearing like a quadrilateral prosthesis, a
metalic bar that goes to the floor keeping the child's leg abducted
and in
the air, with no load on the head of the femur.For bilateral cases we
use
Atlanta brace or Scotish Rite brace.If you need pictures or a draw I
can
fax it for you.
================================

A Tachdijian orthosis is used for Legg-Perthes' Disease. I believe
it's the
same as the Scottish Rite orthosis but will have to double check my
information
================================

The Tachdijian orthosis was a unilateral KAFO designed for Legg-
Perthes.
It didn't maintain abduction consistently and fell out of favor. I
don't
have a reference, but I know there were a couple of articles about it
in
the medical literature about 20 years ago.

=========================================
It is a special type of patten bottom device with a trilateral brim
used for
legg perthses. Contact Fillauer for more info..

=============================================

The Tachdijian orthosis was an orthosis developed by a doctor of that
name
used to treat Legg Calve Perthes disease. Its trilateral design
facilitated
ambulation-there is a picture of one in the Atlas of Orthoses
(previous one
to current edition.
=========================================

It is an ischial weight bearing prosthesis used in the immediate
post-operative period for early ambulation of the new below-knee
amputee.
Dr. Tachdijian developed it with assistance from Wright & Fillipis
here in
Michigan. Becker Orthopedic distributes it in the USA. Personal
opinion is
that it is an over complicated piece of junk.
=================================

Juan: It is a Legg Perthes Orthosis, Trilateral (L1720). I believe
that
Fillauer can supply the components and/or central fab it.
=========================================

Dear Juan:
The Tachdjian orthosis is a unilateral KAFO historically used for the
abducted, unloading of the anatomical hip joint. It's most common
application was in the treatment of Legg-Calve'-Perthes disease.
======================================

Myron Tachidijan is an Orthopedic Surgeon I worked with in the 70's.

He designed several different orthoses for children.

One we worked on with him was the Tri-lateral Legg-Calve Perthes
Orthosis,
this held the afflicted limb in an abducted position in a knee
orthosis with
a contra lateral shoe lift to balance the pelvis. This is shown in
the
Fillauer catalogue.





Juan Manuel Castro
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