
Once diagnosed, your physician will most likely obtain x-ray images and provide you with a grade to your spondylolisthesis.
It is important to note that types and grades are
different terms. Many people get these two terms confused and intertwined.
A grade is basically a score given to describe the severity of your type of spondylolisthesis.
If you have not read our post on spondylolisthesis grades, CLICK HERE TO DO SO.
The type, however, can provide valuable insight to the cause of your spondylolisthesis.
Like others I have talked to, this information was not explained to me. I was not told that there were different kinds of spondy’s or how I even got my spondy. I was under the impression I just had a condition that was painful with no cure.
But with a little research I began to learn about the different types of spondy’s and the age groups and type of people they affect. I also learned you CAN feel better with the right knowledge and plan of attack.
When explaining the different types of spondy’s to people we commonly use the classification system adapted from Wiltse et al(1).
This classification system has 5 different kinds of spondy’s....
1. Isthmic – The most common type of spondylolisthesis especially amongst adolescent athletes, isthmic spondy’s can be caused by either an acute fracture or stress fracture (fatigue in the bone resulting in a fracture over time).
Studies have shown anywhere between 5-10% of Americans have isthmic spondy’s. And 90% of those affected are grades 1 or 2.
2. Degenerative –Degenerative spondy’s are commonly caused by instability between vertebrae which can cause degenerative changes to the pars interarticularis which can eventually lead to a fracture and slippage.
Degenerative spondy’s are most prevalent in individuals over 40 and are more common in women due to the higher rate of osteoporosis in the female community.
3. Dysplastic – This type of spondy is due to a birth defect of the pars interarticularis (a portion of the vertebrae) that eventually allows for slippage to occur.
When compared to isthmic spondy’s, dysplastic spondy’s are quite rare.
4. Traumatic – Traumatic spondy’s occur as a result of a fracture to structures other than the pars interarticularis.
This type of spondy is even rarer than the dysplastic.
5. Pathologic – Pathologic spondy’s occur as a result of damage from bone disease thus leading to slippage.
Pathologic spondy’s are also very rare.
In our experience, most of the spondy’s we see fall into the category of isthmic with degenerative being a distant second. The other three classifications are very rare when compared to isthmic and degenerative.
Your physician can give you a better sense and idea of which type you fall into. But remember, this is something your physician has to determine. If you have any questions or concerns regarding your type of spondy make sure to discuss it with a qualified professional.
To learn more about types of spondy's and more importantly how to go about reducing the pain associated with spondy's check out our eBook SpondySolution. It is full of information and a corrective exercise program designed specifically for those with spondylolisthesis and spondylolysis.
References
1. Wiltse L, Widell E, Jackson D. Fatigue fracture: The basic lesion is isthmic spondylolisthesis. J Bone Joint Surg. 1975;57:17-22.