Preoperative Assessment of the Spinal Cord Vasculature

Amato, Alexandre Campos Moraes; Stolf, Noedir Antônio Groppo

doi:10.1007/978-3-319-94761-7_25

Cited by 2 publications

(3 citation statements)

References 42 publications

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“…(Reproduced with permission from Amato and Stolf. 34 ) addition of the "T" category. 26 In addition to the traditional "TNM" staging system (size, nodal involvement, and metastases), the "T" category accounts for the number of vertebral segments and the extent to which the tumor extends into the spinal canal or great vessels.…”

Section: Figurementioning

confidence: 99%

“…In the thoracic spine, only a few prominent anterior branches supply the bulk of the anterior cord (Figure 3). 34 The artery of Adamkiewicz (AA) is typically located on the left between T9 and T12 and provides blood supply to a large segment of the anterior spinal artery and anterior spinal cord. Aortic aneurysm surgery data show ≈50% chance of spinal cord injury after permanent occlusion of the AA.…”

Section: Surgical Planningmentioning

confidence: 99%

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Spinal Tumors: Diagnosis and Treatment

Goodwin

Buchowski

Schwab

et al. 2022

J Am Acad Orthop Surg

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Tumors that present in or around the spine can be challenging to diagnose and treat. A proper workup involves a complete history and physical examination, appropriate staging studies, appropriate imaging of the entire spine, and a tissue biopsy. The biopsy defines the lesion and guides treatment, but in some rare instances, rapid neurological decline may lead to urgent or emergent surgery before it can be analyzed. “Enneking-appropriate” margins should remain the goal for primary tumors while adequate debulking/separation/stabilization are often the goals in metastatic disease. Primary tumors of the spine are rare and often complex tumors to operate on—achieving Enneking-appropriate margins provides the greatest chance of survival while decreasing the chance of local recurrence. Metastatic tumors of the spine are increasingly more common, and timing of surgery must be considered within the greater framework of the patient and the patient's disease, deficits, stability, and other treatments available. The specific tumor type will dictate what other multidisciplinary approaches are available, allowing for chemotherapy and radiation as needed.

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Section: Figurementioning

confidence: 99%

Section: Surgical Planningmentioning

confidence: 99%

Spinal Tumors: Diagnosis and Treatment

Goodwin

Buchowski

Schwab

et al. 2022

J Am Acad Orthop Surg

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show abstract

“…1(a)]. Examples of such overlapping conduits can be found in or near the brain [9], spinal cord [10], penis [11], pelvis [12], and kidney [13].…”

Section: Introductionmentioning

confidence: 99%

Elastohydrodynamic autoregulation in soft overlapping channels

Paludan,

Biviano,

Jensen

2023

Phys. Rev. E

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Controlling fluid flow from an unsteady source is a challenging problem that is relevant in both living and man-made systems. Animals have evolved various autoregulatory mechanisms to maintain homeostasis in vital organs. This keeps the influx of nutrients essentially constant and independent of the perfusion pressure. Up to this point, the autoregulation processes have primarily been ascribed to active mechanisms that regulate vessel size, thereby adjusting the hydraulic conductance in response to, e.g., sensing of wall shear stress. We propose an alternative elastohydrodynamic mechanism based on contacting soft vessels. Inspired by Starling's resistor, we combine experiments and theory to study the flow of a viscous liquid through a self-intersecting soft conduit. In the overlapping region, the pressure difference between the two channel segments can cause one pipe segment to dilate while the other is compressed. If the tissue is sufficiently soft, this mode of fluid-structure interactions can lead to flow autoregulation. Our experimental observations compare well to a predictive model based on low-Reynolds-number fluid flow and linear elasticity. Implications for conduit arrangement and passive autoregulation in organs and limbs are discussed.

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Preoperative Assessment of the Spinal Cord Vasculature

Cited by 2 publications

References 42 publications

Spinal Tumors: Diagnosis and Treatment

Spinal Tumors: Diagnosis and Treatment

Elastohydrodynamic autoregulation in soft overlapping channels

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