Hi - can anyone explain or refer me to reading up on:
why is the dura opened up during surgery and where exactly is it opened up - on the cerebellar tonsils/on the brainstem/on the cord? Have actually had the op July last year (have a Chiari 1 and Syrinx in my cord), but it's a question I do keep wondering about and can't seem to find the exact answer to. I know that the op is done with the aim of producing more space, but what's the purpose of opening of the dura? Where does the CSF actually flow through when it goes around the brain and the cord? Thanks.
Hi, I will try and help you understand to the best of my knowledge.
So obviously you understand it is the blockage of csf flow that caused the issues with the Chiari malformation. The malformation its self is caused my the cerebral tonsils blocking that flow due to their downward displacement due to the lack of space. So opening the dura is to shrunk the tonsils in most cases, this is needed in combination with the decompression. Many people have a cauterization if the tonsils and some surgeons remove them other ways. This part of the brain is believed to not have function any more and that it is a part of the brain that was turned off as we evolved thousands of years ago note: this is one theory I read on the function of the cerebral tonsils.
They can also add a dural patch to open up the space the dura has around the brainstem and cord so that they are less likely to have to further operations in the future, they wanted to make sure there was enough room, when you have a syrinx it is most important to open the flow blockages to hopefully shrink your syrinx.
Csf flows around and circulates, it comes out in ventricles and absorbs in a different area. It s purpose is to protect the nervous system from impacts and it washes away waste products that the brain and cord tissue but off after the use the nutrients that the fluid brings to the cns system. You might want to google image search csf flow, it will help you understand this a bit better.
Hope this helps, any more questions fell free to ask, Have a nice day Stacey.
Copyright 1994-2016 MedHelp International. All rights reserved.
MedHelp is a division of Aptus Health.
This site complies with the HONcode standard for trustworthy health information.
The Content on this Site is presented in a summary fashion, and is intended to be used for educational and entertainment purposes only. It is not intended to be and should not be interpreted as medical advice or a diagnosis of any health or fitness problem, condition or disease; or a recommendation for a specific test, doctor, care provider, procedure, treatment plan, product, or course of action. Med Help International, Inc. is not a medical or healthcare provider and your use of this Site does not create a doctor / patient relationship. We disclaim all responsibility for the professional qualifications and licensing of, and services provided by, any physician or other health providers posting on or otherwise referred to on this Site and/or any Third Party Site. Never disregard the medical advice of your physician or health professional, or delay in seeking such advice, because of something you read on this Site. We offer this Site AS IS and without any warranties. By using this Site you agree to the following Terms and Conditions. If you think you may have a medical emergency, call your physician or 911 immediately.