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Our research database contains a large amount of studies and scientific papers relating to brain and spinal conditions. All documents are peer reviewed and published in reputable journals. In cases where it hasn't been possible to verify all information, or verify that it has been peer reviewed, the file will be marked with a ❋. These are predominantly slideshows/powerpoint presentation from webinars hosted by specialists.

CRANIOCERVICAL INSTABILITY ATLANTO-AXIAL INSTABILITY Craniocervical instability (CCI) and A tlantoaxial instability (AAI) are conditions where the ligaments that stabilize the junction between the skull and the cervical spine (the neck) are too loose or weak. This instability can lead to excessive movement at the craniocervical junction, causing compression or irritation of the brainstem, spinal cord, and surrounding nerves. CCI affects the skull and first(C1) vertebrae whereas AAI affects the first(C1) and second(C2) vertebrae SYMPTOM S - Neck Pain : Chronic pain, often at base of skull that may radiate to the shoulders and upper back. Often described as the head feeling too heavy, "bubblehead" - Headaches : Often at the back of the head, worsening with neck movement. - Neurological Symptoms : Dizziness, vertigo, difficulty swallowing, seizures, spasticity, clumsiness, numbness or tingling in the arms and legs, paralysis, and coordination problems. - Sleep issues : General feeling of being tired or weak(fatigue), sleep apnea - Cognitive issue : Trouble with memory, thinking, speaking. - Visual and Auditory Disturbances : Blurred vision, tinnitus (ringing in the ears), or hearing loss. - Autonomic Dysfunction : Symptoms like rapid heart rate, changes in blood pressure, and digestive issues due to the impact on the autonomic nervous system. MAKY.OREL, CC0 by 1.0 CAUSES - Congenital Conditions : Conditions such as Downs syndrome and osteogenesis imperfecta which affects bones, disorders like Ehlers-Danlos syndrome, which affect connective tissue, can lead to CCI+AAI. - Trauma : Injuries such as whiplash or head trauma can damage the ligaments and structures in the craniocervical region. - Degenerative d iseases : Conditions like rheumatoid arthritis can weaken the joints and ligaments over time. - Post-Surgical : Some patients develop CCI+AAI after surgeries involving the head, neck, or spine. Especially chiari decompression surgery THE CRANIOCERVICAL LIGAMENTS In Craniocervical Instability (CCI) and Atlantoaxial Instability (AAI), the key problem is that the ligaments connecting the skull (cranium) to the upper cervical spine — especially C1 (atlas) and C2 (axis) — are too loose, stretched, or damaged. This allows excessive movement that can compress the brainstem, spinal cord, or nerves. Whereas the classical instability most doctors are taught about is due to bone abnormalities or full dislocations, this website refers CCI and AAI ine the context of ligament laxity. Anatomy Standard - Drawing Cranio-cervical junction ligaments - Latin labels" at AnatomyTOOL.org by Jānis Šavlovskis and Kristaps Raits, license: Creative Commons Attribution-NonCommercial THE BIOMECHANICAL CASCADE Ligament laxity or damage (often due to trauma or connective tissue disorder) → Excessive motion at occipito-atlantal (CCI) or atlantoaxial (AAI) joints → Compression or stretching of: Brainstem Upper spinal cord Cranial nerves IX–XII Vertebral arteries or jugular veins → Neurological and vascular dysfunction → Chronic pain and autonomic dysregulation (dysautonomia) DIAGNOSIS - Clinical Examination : Detailed neurological and physical examination to assess symptoms and range of motion. - Imaging Studies : Upright MRI, rotational CT scan to visualize the craniocervical junction and detect abnormal movement. Digital motion X-ray, a specialized X-rays taken while the patient moves their head up and down, may also be used to see how the cervical spine aligns. - Measurements : made on imaging to asses the degree of abnormal movement (instability) of the spine. TREATMENT Conservative Management: - Physical Therapy : Strengthening neck muscles to provide better support and compensate for the ligament laxity. - Bracing : Using cervical collars to limit movement and provide stability. - Medications : Pain relief and some drugs can help to manage symptoms. Surgical Intervention: - Spinal Fusion Surgery: In severe cases, fusing the skull to the upper cervical vertebrae to stabilize the junction. This involves using screws, rods, or plates to secure the bones in place. Alternative therapies: - Prolotherapy : Injects a natural irritant (like dextrose) into ligaments to stimulate healing and can tighten lax ligaments over time - Platelet-Rich Plasma (PRP) : Uses your own blood platelets, injected into injured ligaments to promote repair. Often targeted at alar, transverse, or accessory ligaments - Stem Cell Therapy: Similar goal to PRP but with stem cells (from fat or bone marrow). More expensive and experimental, but some report improvement in instability symptoms - Percutaneous Implantation of the Craniocervical Ligament (PICL): a minimally invasive, image-guided regenerative procedure designed to strengthen and stabilize the ligaments at the top of the spine Please keep in mind that these alternative treatments are still new, understudied and considered experimental POTENTIAL COMPLICATIONS - Neurological Damage : If untreated, the ongoing compression can cause permanent damage to the brainstem and surrounding nerves. Fusion surgery While spinal fusion surgery can be beneficial and necessary, it carries several risks: - Infection : The surgery site can become infected. - Bleeding : There may be significant blood loss during the operation. - Pain : Persistent pain at the fusion site is possible. - Nerve Damage : Nerves near the spine might get damaged, leading to numbness, weakness, or paralysis. - Adjacent Segment Disease : Stress on the surrounding vertebrae can cause them to deteriorate faster. PROGNOSIS The outlook for individuals with CCI varies depending on the severity of the instability and the effectiveness of treatment. Early diagnosis and appropriate management can significantly improve symptoms and quality of life. In severe cases, surgical intervention may be necessary to prevent further neurological damage and provide long-term stability. Regular follow-up with a healthcare provider is essential to monitor the condition and adjust treatment as needed. SOURCES Craniocervical instability in patients with Ehlers-Danlos syndromes: outcomes analysis following occipito-cervical fusion Craniocervical Instability - Dr. Gilete Craniocervical instability and hEDS:HSD Cervical medullary syndrome secondary to craniocervical instability and ventral brainstem compression in hereditary hypermobility connective tissue disorders CONSENSUS STATEMENT 1. Ventral brainstem compression, medullary kinking and deformation of the upper spinal cord and/or brai Atlantoaxial Instability - StatPearls - NCBI Bookshelf Biomechanics of the craniocervical region: the alar and transverse ligaments

This medical binder template has everything you need to start your own medical binder. It's perfect for collecting the important information a new specialist will need to know. It includes: Diagnosis overview Medication overview Allergies Medical devices/treatments Symptoms Important personal information such as bloodtype, contact info etc and more! Download it here (colored version) Or here (grey version)

SLIDESHOWS CCI/AAI Neurosurgical management of Hereditary Hypermobility Connective Tissue Disorders Cervical instabilities in the EDS population Recognition of Craniocervical Instability in complex Chiari patients Retethering in Ehlers-danlos syndrome Urological manifistations of Tethered cord syndrome Tethered cord syndrome in Ehlers-Danlos syndrome Tethered cord IJVS + IH

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CONNECTIVE TISSUE DISORDERS Connective tissue disorders are a group of diseases that affect the parts of the body that connect, support, or surround other tissues and organs. These tissues include collagen and elastin, which provide strength and flexibility to skin, joints, blood vessels, and internal organs .Connective tissue is found throughout the body and includes: Tendons (connect muscles to bones) Ligaments (connect bones to each other) Cartilage Fat tissue Bone Skin Blood vessel walls TYPES They can be inherited (genetic) or acquired (autoimmune). Inherited (Genetic) Disorders These are caused by mutations in genes responsible for collagen or other connective tissue proteins: Marfan syndrome Ehlers-Danlos syndrome (EDS) & Hypermobility spectrum disorder (HSD) Osteogenesis imperfecta Stickler syndrome Autoimmune (Acquired) Disorders The body’s immune system mistakenly attacks its own connective tissue: Systemic lupus erythematosus (SLE) Rheumatoid arthritis (RA) Scleroderma Sjogren's syndrome Mixed connective tissue disease (MCTD) EDS & HSD Ehlers-Danlos syndrome (EDS) is a group of inherited disorders that affect the connective tissues, which provide support in skin, joints, blood vessels, and other organs and tissues. The defects in connective tissue result in symptoms that vary in severity and type depending on the specific form of EDS. Hypermobility Spectrum Disorder(HSD) is a connective tissue disorder that affects the joints, causing them to move beyond the normal range — also known as hypermobility — along with pain and other symptoms. What is Hypermobility Spectrum Disorder (HSD)? HSD refers to a group of conditions where people have joint hypermobility plus symptoms (like pain, instability, or fatigue), but don’t meet the full criteria for hypermobile Ehlers-Danlos syndrome (hEDS). This page will focus mainly on these two conditions, as they are the most closely linked to CCI & Co. TYPES OF EDS There are several types of EDS, with the most common being: Hypermobile EDS (hEDS): Characterized by joint hypermobility, frequent dislocations, and chronic pain. Classical EDS (cEDS): Features include highly elastic (stretchy) and fragile skin, as well as joint hypermobility. Vascular EDS (vEDS): The most severe type, affecting blood vessels and organs, making them prone to rupture. HEDS is the most common of all types, along with HSD. SYMPTOMS Joint Hypermobility: Unusually flexible joints that extend beyond the normal range of motion. Skin Elasticity: Soft, velvety skin that is highly elastic and fragile, prone to bruising and scarring. Chronic Pain: Due to joint and muscle issues. Frequent Dislocations and Subluxations: Partial dislocations of the joints. Easy Bruising: Blood vessels can be fragile, leading to frequent bruising. Slow Wound Healing: Scars that may stretch or become wide. Cardiovascular Issues: In some types, especially vEDS, there is a risk of blood vessel or organ rupture. Muscle Weakness: Generalized weakness and fatigue. Digestive Issues: Such as gastrointestinal reflux, constipation, or hernias. DIAGNOSIS Clinical Examination: Assessment of symptoms, including skin texture, joint mobility, and family history. Genetic Testing: To identify specific mutations associated with various types of EDS. There's no known gene for hEDS and HSD but reserch is ungoing Skin Biopsy: Examining a sample of skin tissue to study collagen structure and composition. TREATMENT While there is no cure for EDS & HSD, treatment focuses on managing symptoms and preventing complications: Physical Therapy: To strengthen muscles and stabilize joints. Pain Management: Medications, physical therapy, and sometimes surgery. Protective Measure: Using braces or supports to protect joints, and avoiding activities that put stress on the joints. Mobility aids: using aids to manage pain and mobility issues Wound Care: Special care for skin injuries to promote healing and minimize scarring. Regular Monitoring: Particularly for types that involve cardiovascular risks, such as vEDS, regular check-ups with a cardiologist may be necessary. Surgical Interventions: May be required for severe joint issues or vascular complications, though surgeries can be more complicated due to tissue fragility. PROGNOSIS The prognosis for EDS & HSD varies widely depending on the type and severity of the condition. Many individuals with EDS live a normal lifespan with proper management of symptoms. However, those with vascular EDS (vEDS) may face serious, life-threatening complications and require more intensive monitoring and care. Regular follow-up with healthcare providers and a multidisciplinary approach to care can help manage the condition effectively. For more info, please check out our resources here SOURCES https://www.mayoclinic.org/diseases-conditions/ehlers-danlos-syndrome/symptoms-causes/syc-20362125 https://www.ehlers-danlos.org/what-is-eds/ https://www.ehlers-danlos.org/what-is-eds/information-on-eds/hypermobile-eds-and-hypermobility-spectrum-disorders/ https://www.ncbi.nlm.nih.gov/books/NBK549814/ https://my.clevelandclinic.org/health/diseases/17813-ehlers-danlos-syndrome

CHIARI MALFORMATION Chiari malformation is a condition where part of the brain, specifically the cerebellum, is located lower than usual and extends into the spinal canal. This abnormal positioning can cause various neurological issues because it puts pressure on the brain and spinal cord. SYMPTOM S - Headaches : Often severe and worsened by coughing, sneezing, or straining. - Neck Pain : Particularly at the base of the skull. - Balance Problems : Difficulty walking and coordinating movements. - Muscle Weakness : Especially in the arms and legs. - Numbness or Tingling: In the hands and feet. - Swallowing Difficulties : Sometimes accompanied by gagging or choking. - Dizziness: Vertigo or a feeling of being off-balance. - Vision Problems: Blurred or double vision. MRI of human brain with type-1 Arnold-Chiari malformation and herniated cerebellum " by Basket of Puppies is licensed under CC BY-SA 3.0 . TYPES Types of Chiari Malformations: Type I - Description : The cerebellar tonsils (the lower part of the cerebellum) extend into the foramen magnum, the opening at the base of the skull. - Symptoms : Often asymptomatic in childhood, but can cause headaches, neck pain, balance problems, and coordination difficulties in teens or adults. Type II - Description : More severe than Type I. Involves more significant displacement of brain tissue and is often associated with spina bifida (myelomeningocele), where part of the spinal cord and its surrounding structures are exposed through a gap in the backbone. - Symptoms : Present at birth, can cause severe neurological issues such as difficulty swallowing, arm weakness, and breathing problems. Type III - Description : The cerebellum and brainstem extend into the foramen magnum and into the spinal canal. This is very rare and severe. - Symptoms : Causes serious neurological deficits, such as severe developmental delays and physical disabilities. Often detected at birth. Type IV - Description : The cerebellum is underdeveloped or incompletely formed. This is the rarest and most severe form. - Symptoms : Often incompatible with life due to significant brain abnormalities. DIAGNOSIS Chiari malformation is usually diagnosed through imaging techniques such as MRI (Magnetic Resonance Imaging), which provides detailed images of the brain and spinal cord. In some cases an upright MRI might be necessary, in cases where the herniation is only visible/worsens when upright. TREATMENT - Monitoring : If symptoms are mild, regular monitoring may be sufficient. - Medication : To manage pain and symptoms like headaches. - Surgery : The most common treatment for more severe cases involves surgery to relieve pressure on the brain and spinal cord. This can include a procedure called decompression surgery, where part of the skull is removed to create more space for the brain. It's important to know that Chiari decompression surgery can worsen any instability (CCI/AAI) there might be, ruling this out first can help you avoid complications. Chiari malformation is a complex condition, and treatment plans are tailored to the individual's specific symptoms and severity of the malformation. POTENTIAL COMPLICATIONS Potential Complications: - Meningitis: Infection due to bacteria entering the brain or spinal cord through the tear. - Chronic Headaches : Persistent headaches due to ongoing CSF leakage. - Neurological Symptoms : If the leak affects brain or spinal cord function. - Instability : Instability of the C1-C2 due to structural impairment after a piece of skull is removed PROGNOSIS The prognosis of Chiari malformation (CM) varies significantly depending on the type and severity of the condition, as well as the presence of related complications. Many individuals with CM-I may not experience symptoms and may live normal lives without requiring treatment. Some people may have mild symptoms, such as headaches, neck pain, dizziness, or balance issues, but these can often be managed with medication or lifestyle changes. With appropriate treatment, many people with CM-I can lead a relatively normal life. However, if left untreated, progressive neurological issues can develop. SOURCES Mayo Clinic – Chiari Malformation https://www.ninds.nih.gov/health-information/disorders/chiari-malformations https://bobbyjonescsf.org/chiari/ https://www.aans.org/patients/conditions-treatments/chiari-malformation/

ABOUT This page is made by a patient, for patients. When i was diagnosed i scoured the internet for information about CCI and it's comorbidities. Unfortunately i didn't find much, and what i found was either anecdotal or hard to understand. I was missing an information hub that was backed by evidence and reputable sources, yet easy to understand despite the cognitive difficulties my conditions gave me. So once i started to get better, i decided to create one myself and hopefully give back to a community who's helped me survive the journey. That's what brought us to this place. I hope this page can be everything i needed, to someone else.

TYPE OF SCANS AND TESTS SUPINE MRI An MRI is a scan that uses strong magnets and radio waves to create detailed pictures of the inside of your body — especially soft tissues like the brain, spine, muscles, and organs. It does not use X-rays or radiation, unlike a CT scan. A supine MRI is the most common type, supine means laying down. UPRIGHT MRI (uMRI) An Upright MRI is a type of MRI scan where you are sitting or standing instead of lying down. It takes images of your body while it's under natural gravity and posture — which can reveal problems that don’t show up when lying flat. Often it's done as a dynamic scan with flexion-extension positioning. Upright MRI is the preferred imaging for diagnosing CCI. Unfortunately upright MRI machines are hard to come by, often requiring you to travel to find one. You can find the locatations of uMRIs in europe here . CT SCAN A CT scan(Computed Tomography) is a scan that uses X-rays and a computer to create detailed pictures of the inside of your body. It’s like a more advanced X-ray that shows cross-section images (like slices of your body), allowing doctors to see bones, organs, blood vessels, and soft tissues more clearly. ROTATIONAL CT SCAN A Rotational CT scan is a special kind of CT scan (Computed Tomography) where imaging is done while the head or neck is rotated to the left and right, not just in a neutral (still) position. Instead of just one static picture, it gives multiple 3D images of the bones at different head positions (usually at full left rotation, full right rotation, and neutral). This is the preferred way to diagnose AAI, also called rotational instability. CONE BEAM CT (CBCT) A CBCT scan is a special type of CT scan that uses a cone-shaped X-ray beam to create 3D images, mostly of the head, neck, teeth, jaw, and sinuses. It gives high-detail images of bones and teeth with lower radiation than a regular CT. Recently this scan has been used to create dynamic (flexion/extension) imaging, as many don't have access to an upright MRI. This scan is useful in diagnosing both CCI and AAI. MR/CT VENOGRAM A venogram is a imaging test that shows how well your veins are working. It uses contrast dye to make the veins visible on scans, allowing doctors to see blockages, narrowing, or abnormal blood flow. This test is especially useful for detecting problems in deep veins that can't be seen with ultrasound alone.It can be done both as an MRI and as a CT. It's one of the scans used to diagnose jugular stenosis and transverse sinus stenosis. MR/CT ANGIOGRAM An angiogram is a imaging test used to visualize blood vessels — especially arteries — to detect problems like narrowing, blockage, bulging (aneurysm), or abnormal connections. The word "angio" means blood vessel, and "gram" means picture — so an angiogram is literally a picture of blood vessels. It can be done as either CT with contrast or MRI with or without contrast. It can be invasive, involving a catheter (thin tube) is inserted into an artery (usually in the groin, wrist, or neck) or non invasive. It's one of the scans used to diagnose jugular stenosis and transverse sinus stenosis. FLEXION-EXTENSION X-RAY A flexion-extension X-ray is a special type of X-ray imaging used to take pictures of your spine while it’s bent forward (flexion) and bent backward (extension). This is often the first scan a doctor orders when instability is suspected, however it is rarely enough to diagnose ligamentous laxity related instability such as CCI. DIGITAL MOTION X-RAY (DMX) A Digital Motion X-Ray (DMX) is a special type of real-time X-ray that shows how your bones and joints move while you're actually moving — like turning your head or bending your neck. It’s like a video X-ray, allowing doctors to watch your joints in motion to detect problems that don’t show up when you're still. It's used by some practitioners to diagnose CCI, AAI and subaxial (below c2) instability. LUMBAR PUNCTURE (LP) A lumbar puncture (LP) is a procedure that measures cerebrospinal fluid (CSF) pressure in the lower back — which indirectly reflects the pressure inside the skull.After cleaning the skin and numbing the area, a thin, hollow needle is gently inserted between two vertebrae in the lower lumbar spine (usually between L3–L4 or L4–L5). The needle passes into the subarachnoid space, where CSF flows around the spinal cord. Once the needle is in the correct space, it’s attached to a manometer — a small, clear, vertical tube that measures pressure. ICP BOLT TEST An ICP bolt (Intracranial Pressure bolt) is a small, screw-like device used to measure pressure inside the skull (intracranial pressure) directly and continuously. The ICP bolt is a type of invasive pressure monitor. It’s called a “bolt” because it’s a hollow screw that anchors a tiny pressure sensor into the skull. INVASIVE CERVICAL TRACTION (ICT) Invasive cervical traction is a medical procedure where a pulling force is applied to the cervical spine (neck) using surgically placed pins or screws in the skull or spine to help realign, decompress, or stabilize the neck bones. Unlike regular traction (which uses external devices like a neck harness), invasive traction involves inserting hardware into bone to apply more precise or stronger traction. Some doctors use ICT to help determine if a fusion surgery would help alleviate symptoms HALO VEST TRIAL A Halo Vest Trial is a temporary, non-surgical test used to see whether stabilizing the head and neck with a rigid device (a halo vest) improves a patient’s symptoms — especially in cases of Craniocervical Instability (CCI) or Atlantoaxial Instability (AAI).

NeuroSpine Connections is a patient run resource focusing on craniocervical instability and comorbidities NeuroSpine Connections Join our facebook group and become part of the community Facebook BROWSE CONDITIONS CCI + AAI Chiari malformation Tethered cord CSF leak Intracranial hypertension AND MORE Help keep this site running! This site depends on donation to stay open. Can you spare $1 to help us, help patients? Our Story Read More Get to Know Us This site was created by a patient, for patients, with a hope of providing an information hub with reputable sources yet still easy to understand, despite brainfog.