Posted on Thursday 31 January 2008
This is a common question. What is Kyphosis? In medical terms it is this:
Thoraco-Lumbar kyphosis in achondroplasia. Most babies with achondroplasia develop a ‘hump’ in their lower back (sometimes referred to as a gibbus). For most of these that early kyphosis will go away by itself without any symptoms resulting. An x-ray of early thoraco lumbar kyphosis in a baby with achondroplasia is shown in Figure 4. In few percent of individuals with achondroplasia, however, that kyphosis will become stiff and angulated. And in those individuals, nerve damage can arise later on in life that, if not cared for, can result in paralysis. Rather than having to treat the kyphosis at that stage, what we would like to be able to do is prevent those severe kinds. Evaluations done here (and similar assessments carried out at other centers) suggest that some simple interventions may be effective in preventing those complications. It seems that if one can prevent gravity from exerting abnormal pressures on the bones of this region then much less frequently will the severe curves develop. How can those effects of gravity be minimized? It seems that prohibiting any unsupported sitting in the first year of life and always providing good back support markedly decreases the risk of serious and rigid curves developing. About 85% of all babies develop some kyphosis. With careful prohibition of such unsupported sitting all but about 15% of those will take care of themselves. In our clinic the remainder are braced for a time and in that group none have gone on to have worrisome curves.
For those of us who read this and said “huh?” it is a curvature of the lower spine. To easily explain this, place your hand in the middle of your back. The part that curves in right above your pelvic bone. That is a normal spine. With Kyphosis, the spine actually curves outward.
This is a visual time line of Knoah’s spine.
January 05, 2007

May 23, 2007

January 21, 2008

This is the reason we need to find another Orthopedic Surgeon. As of today’s date, Knoah’s Kyphotic curve is 74 degrees.
In a majority of children with Achondroplasia, 15% of children will end up being braced. A large number of those children will be braced after the age of 3. Very few (Ain’t we the lucky ones) will be braced before their 1st birthday.
Knoah’s current Ortho seems unwilling to work with or even contact Dr. Pauli. Why, I don’t know. It would seem to me that she wants to be a “SPIT-R” aka the smartest person in the room. Because of that, Knoah’s spine has gotten worse, despite bracing.
It is widely accepted that the following will minimize the degree of Kyphosis:
Most infants with achondroplasia develop a thoracolumbar kyphosis. More severe kyphosis is associated with unsupported sitting before there is adequate trunk muscle strength (Hall, 1988; Pauli et al., 1997). Parents should be counseled to avoid unsupported sitting and to avoid devices that cause curved sitting or “C sitting,” such as “umbrella-style” strollers and soft canvas seats during the first year of life. Use of feeder seats for upright positioning should be recommended. If severe kyphosis appears to be developing, consider a pediatric orthopedic surgical assessment to determine if bracing is needed (Pauli et al., 1997).
In other words, NO UNSUPPORTED SITTING! None! It is best to keep the baby flat on either his/her back or tummy for the first year of life. Encouraging early sitting is asking for trouble.
Now that I have said that, you ask “Why is Knoah’s back so bad? Don’t you write a blog about raising an Achondroplastic child? What did you do wrong?”
The answer is nothing. I did everything that is recommended. For his stroller, I used a Pram. His car seat was padded with extra padding. I never let him sit unsupported, until he started sitting on his own. Still, his Kyphosis has increased. It happens. In talking with Dr. Pauli at our July meeting in Grand Rapids, I asked him this question. Why? Unfortunately, in some children, there will be about 2% of Achon’s who develop a progressive kyphosis despite doing everything right. Again, lucky us.
I know it is causing him pain at this point. When he gets into a sitting position, he doesn’t stay in it long. I try to massage the sides of his spine, why, I don’t know. I am hoping it relives some of the pressure off his muscles.
Casey gave me a few names of doctor’s who work with Pauli. Their in Grand Rapids and in Madison, Wisconsin. I don’t know how my insurance will feel about it, but I have started the process.
With a progressive Kyphosis, damage can occur to the vertebrae. This is called Anterior Wedging. When the vertebrae start to hit each other, bone fragments start to break off. This leads to symptoms such as back pain, respiratory dysfunction, neurologic involvement, or symptoms of spinal stenosis.
When the Kyphosis starts to become fixed (unable to reduce the Kyphosis by placing gentle pressure on that part of the spine), surgery becomes the only option to stabilize the vertebrae.
We DO NOT WANT THIS! So, we are on our next journey to hunt for an Orthopedic Surgeon.

















