Spinal – Meaning, Anatomy and Conditions
Spinal refers to anything related to the spine or spinal cord. In medicine, the term is commonly used to describe structures, conditions, or procedures involving the vertebral column or spinal cord.
Things worth knowing about "Spinal"
Spinal refers to anything related to the spine or spinal cord. In medicine, the term is commonly used to describe structures, conditions, or procedures involving the vertebral column or spinal cord.
What does spinal mean?
The term spinal derives from the Latin word spina, meaning thorn or spine, and is used in medicine to describe anything relating to the vertebral column (spine) or the spinal cord (medulla spinalis). It functions as an adjective to characterize anatomical structures, diseases, nerves, or medical procedures in this region of the body.
Anatomical Basics
The vertebral column consists of 33–34 vertebrae, divided into five regions:
- Cervical spine – 7 vertebrae (C1–C7)
- Thoracic spine – 12 vertebrae (T1–T12)
- Lumbar spine – 5 vertebrae (L1–L5)
- Sacrum – 5 fused vertebrae
- Coccyx – 4–5 fused vertebrae
The spinal canal, formed by the vertebral arches, houses the spinal cord. Paired spinal nerves branch off from the spinal cord and supply muscles and skin areas throughout the entire body.
Clinical Relevance
Spinal Conditions
Conditions described as spinal affect the spinal cord or the vertebral column. The most common include:
- Herniated disc (disc prolapse) – protrusion or herniation of disc material into the spinal canal
- Spinal stenosis – narrowing of the spinal canal, potentially compressing the spinal cord or nerve roots
- Spinal muscular atrophy (SMA) – a genetic disorder affecting motor neurons in the spinal cord
- Multiple sclerosis – can involve spinal cord lesions leading to paralysis or sensory disturbances
- Spinal cord injury – complete or partial disruption of spinal cord function due to trauma or disease
Spinal Procedures and Interventions
Many medical procedures are described as spinal because they are performed on or near the spine or spinal cord:
- Spinal anesthesia – regional anesthesia achieved by injecting a local anesthetic into the subarachnoid space
- Spinal tap (lumbar puncture) – withdrawal of cerebrospinal fluid (CSF) for diagnostic purposes
- Spinal fusion (spondylodesis) – surgical stabilization of vertebrae
- Spinal decompression – surgical widening of the spinal canal in cases of stenosis
Spinal Symptoms
Diseases or injuries of the vertebral column and spinal cord can cause a wide range of complaints:
- Back pain and neck pain
- Radiating pain into the arms or legs (radiculopathy)
- Numbness and tingling (paresthesia)
- Muscle weakness or paralysis
- Bladder or bowel dysfunction in severe spinal cord damage
Diagnosis of Spinal Conditions
Various diagnostic methods are available to evaluate spinal complaints:
- MRI (Magnetic Resonance Imaging) – gold standard for visualizing the spinal cord, intervertebral discs, and nerve roots
- CT (Computed Tomography) – particularly useful for assessing bony structures
- X-ray – basic imaging of the vertebral column
- Electromyography (EMG) and nerve conduction studies (NCS) – to assess nerve and muscle function
- CSF analysis (lumbar puncture) – used when inflammatory or infectious conditions are suspected
Treatment
Treatment of spinal conditions depends on the underlying cause and severity:
- Conservative therapy: physiotherapy, pain management, orthoses
- Interventional procedures: infiltrations, epidural injections
- Surgical treatment: disc surgery, decompression, spinal fusion
- Rehabilitation: In cases of spinal injury, intensive rehabilitation is essential for restoring function
References
- Moore K.L., Dalley A.F., Agur A.M.R. – Clinically Oriented Anatomy. 8th edition. Wolters Kluwer, 2018.
- World Health Organization (WHO) – Spinal cord injury. Fact Sheet. Geneva, 2013. Available at: https://www.who.int/news-room/fact-sheets/detail/spinal-cord-injury
- Ropper A.H., Samuels M.A., Klein J.P. – Adams and Victor's Principles of Neurology. 11th edition. McGraw-Hill Education, 2019.
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