TMJ 'dysfunction' - Health implications

Within this forum, you will discover valuable insights on how a 'dysfunctional' jaw, dental arch anomalies, and various body asymmetries can contribute to illness from a unique perspective. This is your go-to resource for finding effective solutions and achieving lasting relief.
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PostPosted: Wed, 14 Feb 2024, 10:31 pm 
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Additionally, Nutcracker syndrome may contribute to:
- The development of left lower-extremity varicose veins;
- Orthostatic proteinuria, which is protein in the urine that increases when standing up;
- Fatigue and malaise: Likely due to the chronic nature of the condition and the associated pain;

People with nutcracker syndrome usually don't experience any symptoms until they are severe. Early indicators are blood in the urine, back pain, headaches, bloating, leg swelling and abdominal pain. Some people also experience a backup of urine, making it difficult to pass urine. If left untreated, it can lead to decreased kidney function, kidney failure, blood clots, pulmonary embolism with dire outcomes.

Surgical treatment for nutcracker syndrome can include moving the left renal vein and reattaching it, or a left renal vein bypass. Renal autotransplantation is the most invasive surgery. The most common complications are kidney failure and bleeding.

Diagnosing Nutcracker syndrome requires a high degree of suspicion, especially in young patients presenting with its characteristic symptoms without any clear aetiology. Various imaging studies can aid in the diagnosis:

- Doppler ultrasound: Often the first step, which can suggest compression of the left renal vein, but might not always be definitive.
- Computed tomography (CT) angiography or Magnetic Resonance Imaging (MRI): These can more clearly visualize the anatomical relationships and confirm the presence of compression between the superior mesenteric artery and the aorta.
- Venography: Considered the gold standard for diagnosis, it can also measure the pressure gradient across the left renal vein, offering definitive evidence of NCS.

The fundamental reason for this compression typically involves anatomical variations or positional relationships between the SMA and the aorta. Several factors can contribute or exacerbate this condition:

1. Spinal Asymmetry: Spinal asymmetry might not itself directly cause Nutcracker syndrome; however, any deformity in the spine, such as scoliosis (lateral curvature of the spine), can potentially alter the anatomical relationships in the abdominal cavity. This could, in theory, change the angles at which arteries like the SMA cross over other structures such as the left renal vein, potentially exacerbating the compression. Nonetheless, there isn't a direct, well-established causal link between spinal asymmetry and Nutcracker syndrome.

2. Effects on the Aorta: The position and curvature of the aorta can vary significantly among individuals. Conditions that affect the aorta's position or its relation with other abdominal structures, such as aortic aneurysms or variations in aortic development, could theoretically influence the degree of compression on the left renal vein. However, the primary concern is usually the relationship between the SMA and the aorta rather than the condition of the aorta itself.

3. Involvement of Diaphragmatic Muscles: The diaphragmatic muscles, especially the crura of the diaphragm which are muscle fibres attaching to the lumbar spine, are not directly involved in Nutcracker syndrome. This condition is primarily related to the vascular structures within the abdomen rather than the muscular components. Nonetheless, any significant alteration in diaphragmatic function or structure potentially affecting the overall anatomy of the abdominal cavity might indirectly influence the positions of abdominal arteries and veins, though this is not a recognized cause of Nutcracker syndrome.

4. Other Reasons Behind Nutcracker Syndrome:

- Anatomical Variations: Some individuals may naturally have a smaller angle between the SMA and the aorta, increasing the risk of compression on the left renal vein.

- Weight Loss: Significant weight loss can reduce the amount of fatty tissue around the SMA, potentially exacerbating the angle of compression on the left renal vein.

- High Renal Mobility (Nephroptosis): In some cases, the kidney may be more mobile and descend more than normal when standing up, stretching the left renal vein and increasing its susceptibility to compression.

- Fibrous Bands: Rarely, fibrous tissue bands in the abdomen can exert extra pressure on the left renal vein, contributing to the syndrome.

- Incorrect breathing mechanism: The relationship between breathing patterns and vascular or organ function touches upon broader aspects of how the body’s physiological processes are interconnected. Proper breathing mechanics are essential for optimal body function. When breathing is primarily thoracic (chest breathing) rather than diaphragmatic (belly breathing), it can alter the dynamics within the abdominal cavity, potentially impacting venous return (the flow of blood back to the heart) and contributing to various other health issues.

Chest breathing tends to engage the accessory shoulder muscles rather than the diaphragm, which can lead to inefficient gas exchange and may increase the workload on the heart and lungs. Over time, this can contribute to or exacerbate issues related to circulation and possibly impact conditions like Nutcracker syndrome, where vascular compression is a core issue.

Breathing deeply into the abdomen (diaphragmatic breathing) encourages full oxygen exchange, promotes relaxation of the body, and improves venous return because of the changing pressures in the thoracic and abdominal cavities during the breathing cycle. The diaphragm acts like a pump, assisting in moving blood back to the heart and facilitating better circulation.

For individuals with Nutcracker syndrome, addressing any concurrent breathing and abdominal issues might offer symptomatic relief, though it's important to note that these interventions are necessary in any case for improved health. Improving breathing mechanics could potentially help with the management of some symptoms associated with NCS or other conditions by promoting better circulation and reducing pressures that might exacerbate venous compression.

- Exaggerated lumbar curvature (Lumbar Lordosis) as a contributing factor: Lumbar lordosis refers to an excessive inward curve of the lower spine. This condition can potentially influence the relative positioning of abdominal and retroperitoneal structures. Although lumbar lordosis can alter the spatial relationships between structures within the abdomen and pelvis, direct evidence linking lumbar lordosis to Nutcracker syndrome through the mechanism of altered vascular angles is less discussed in literature. Severe alterations in spinal curvature could feasibly affect any condition that modifies the anatomical relations of the LRV, SMA, and aorta could theoretically affect the propensity for vascular compression. However, it's essential to consider this within the context of individual variability in anatomy and the multifactorial nature of vascular compression syndromes. In-depth imaging studies, such as computed tomography (CT) angiography or magnetic resonance imaging (MRI), can help elucidate the precise anatomical relationships in affected individuals.

- Relation of L2 Vertebra to Renal Vasculature: The L2 vertebra is a key landmark in the abdominal anatomy, situated near the origin of the renal arteries from the aorta. However, the relationship of L2 to the LRV, SMA, and aorta might be more nuanced than being a direct contributing factor to vein compression. While anatomical variations or distortions (such as a severe lumbar lordosis) might change the angulation at which the LRV crosses between the SMA and the aorta, thus potentially influencing the development or severity of Nutcracker syndrome, it is the positional and relational dynamics between these vascular structures themselves that primarily define the syndrome.

Conclusion: it is important to approach anatomical and positional factors in the development of Nutcracker syndrome associations with a view toward individual anatomical variation and the need for detailed diagnostic imaging to understand the interplay of these factors in specific cases. Further research could elucidate whether conditions like exaggerated lumbar lordosis consistently contributes to the pathophysiology of Nutcracker syndrome or represent a coincidental association in certain individuals.

Treatment: Consult a physician or surgeon to get all necessary scans and confirmation of nutcracker phenomenon or syndrome.

Management and treatment approaches vary, depending on the severity of the symptoms, and I suggest correcting:

- Dental/orthodontic anomalies, which result in cervical and spinal distortions.
- Any TMJ dysfunction.
- Collapsed foot arches, which cause hip and spinal asymmetry.
- Other skeletal asymmetries.
- Breathing mechanism.

The above measures are required irrespective of any pathology. If they do not resolve the issue:


- Consult a physician or a surgeon at the outset, as suggested earlier, for possible surgical intervention which may include LRV transposition, SMA transposition, renal autotransplant, and endovascular renal vein stenting to relieve the pressure on the left renal vein.

Possible Futuristic Treatment:
After finishing the aforementioned section last night, the subject continued to occupy my thoughts as I drifted off to sleep. However, upon waking this morning, I had an epiphany for a potential, less intrusive treatment method in the future.

My concept involves an innovative approach to addressing Nutcracker Syndrome. This could involve the insertion of a cartilaginous construct placed between the A shaped angle formed by the mesenteric artery and the aorta, with the vertical arms having a curvature facing the arteries. The horizontal saddle with a curvature facing the renal vein. Such an insert could obviate vascular surgery.

The application of a custom-designed, biocompatible cartilaginous construct as an intervention represents a fusion of tissue engineering, regenerative medicine, and minimally invasive surgical techniques. Below, I will discuss the feasibility and realm of possibility for such a plan, considering the current state of technology and science.

Tissue Engineering and Regenerative Medicine:


The field of tissue engineering has seen remarkable advancements in the past decades, particularly with the development of techniques for creating three-dimensional structures that can mimic the natural architecture of human tissues. This includes cartilage, which has been a focus due to its avascular nature and relatively simpler structure compared to other tissues like organs with complex vascular networks.

Creating cartilaginous constructs from a patient's stem cells, tailored to individual anatomical requirements which may vary greatly from one individual to another, and based on advanced imaging (CT and MRI), is within the scope of current research and has seen practical applications, such as in reconstructive surgery. However, these applications have mostly been limited to less complex, structural uses (like auricular reconstruction) rather than the dynamic, high-stress environment of the vascular system.

Implantation and Integration:


The insertion of a cartilaginous construct via minimally invasive surgery (keyhole surgery) is theoretically plausible. The primary challenges lie in ensuring that the implanted material:

1. Adequately resists the physiological forces at play, particularly the pulsatile force from the aorta.

2. Does not incite a negative immune response or chronic inflammation.

3. Integrates well with the surrounding tissue to prevent migration or degradation over time.

Vascular Application Challenges:

While tissue-engineered cartilage has been successfully implanted in less dynamic settings, the vascular system, especially near the heart and major arteries, presents unique challenges. The high pressure and flow dynamics, coupled with the critical need for uninterrupted blood flow, make this area particularly challenging for implantable constructs.

Moreover, the construct must be designed not only to physically separate the aorta and mesenteric artery from the left renal vein, but also to withstand and adapt to the mechanical forces without deforming or failing over time. Achieving this level of biomechanical compatibility is more complex than current applications of tissue-engineered cartilage.

Research and Development Needs:

To make such an innovative treatment a reality, extensive research and development is needed in the following areas:

1. Biomechanical Engineering: Developing other materials that match the dynamic mechanical properties of the vascular environment.

2. Immunology: Ensuring the biocompatibility and long-term viability of the implant without adverse immune responses.

3. Surgical Techniques: Advancing minimally invasive techniques for the precise placement and securement of the implant.

4. Regulatory Pathway: Navigating the regulatory approvals for novel medical devices and biologic products, which can be lengthy and complex.

Conclusion:

While my proposed approach for treating Nutcracker Syndrome is theoretically possible and certainly innovative, it would require significant advancements in several interdisciplinary fields to become viable. The technology for creating and implanting tissue-engineered constructs has been advancing, but applying this technology in the high-stress, dynamic environment of the vascular system presents a set of challenges that research has yet to fully address.

Ongoing advancements in tissue engineering, regenerative medicine, and minimally invasive surgical techniques are promising. Continued research in these areas could eventually make the kind of futuristic treatment I am envisioning a reality.

© 2024 M. Amir All rights reserved
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ABOUT: Dr Amir’s dedication to promoting an alternative approach to dental and medical care, focusing on prevention over intervention, has not come without significant personal cost. Taking a stance against mainstream practices which contribute to ill health has put him at odds with powerful vested interests in the medical and dental fields. Dr Amir's work has led to groundbreaking achievements, with 48 identified illnesses which can potentially be treated through dental interventions. Despite facing funding challenges, Dr Amir's resolve remains undeterred. This site aims to highlight those issues and promote an alternative approach, to change current dental and medical practice paradigms. To help Dr Amir continue his work and maintain his practice, he invites contributions, no matter how small. Please donate through a window that comes up after a few seconds at dramir.com.

THANK YOU, NOTE: A sincere note of thanks to all who have made generous contributions so far. Your support is greatly appreciated and helps Dr Amir to continue his mission of creating healthier and safer dental and medical practices around the world.

DISCLAIMER: All information provided on this website is purely for educational purposes and based on personal experiences. Before acting on any information presented on this site, it is highly advised that individuals consult their doctor or healthcare provider. The suggested treatments and interventions may not be suitable for everyone, and the site is not meant to replace professional advice. Your health care provider should be consulted to make sure that a suggested treatment or intervention is right for your specific health circumstances.


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