"Rhachischisis totalis" is a medical term used to describe a rare condition where the spinal cord is entirely exposed due to failure of neural tube closure during fetal development. The word is composed of a Greek root "rhachis" meaning spine, and "schisis" meaning a split or opening, with the suffix "-alis" denoting total or complete. The IPA transcription is /rækɪˈsɪskɪs toʊˈtælɪs/, with emphasis on the second syllable of "rhachischisis" and a long "o" sound in "totalis".
Rhachischisis totalis is a medical term used to describe a rare congenital malformation characterized by the complete absence of the vertebral column, commonly known as the backbone. Rhachischisis refers to the physical defect resulting in the splitting open of the spinal cord.
In individuals with rhachischisis totalis, the defect in the embryo occurs during early pregnancy when the neural tube fails to close properly, leading to the formation of a large gap or cleft in the spine. This cleft extends along the entire length of the vertebral column, from the neck to the tailbone, resulting in the absence or severe underdevelopment of the spinal cord and spinal structures.
The absence of the vertebral column and spinal cord can lead to a myriad of complications and neurological issues. These may include paralysis or weakness of the lower limbs, problems with bowel or bladder control, issues with sensation and reflexes, and potentially, impaired functioning of vital organs located within the abdominal and pelvic cavities.
Due to its severe nature, rhachischisis totalis often presents significant challenges and requires surgical intervention to manage its associated complications, although treatment options may depend on the individual case. It is crucial for individuals with this condition to receive comprehensive medical care, including physical and occupational therapies, assistive devices, and multidisciplinary support to address their unique needs and optimize their quality of life.
Overall, rhachischisis totalis encompasses a complex spinal abnormality involving the complete absence or severe underdevelopment of the vertebral column and spinal cord, leading to various impairments and requiring comprehensive medical management.
Holorrhachischisis.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The word "rhachischisis totalis" is a medical term derived from two Greek roots: "rhachis" and "schisis".
1. "Rhachis": This root comes from the Greek word "rachis", which means "backbone" or "spine". In medical terminology, "rhachis" refers to the spine or spinal column.
2. "Schisis": This root comes from the Greek word "schísis", which means "split" or "cleft". In medical terms, "schisis" is used to describe a fissure or abnormal opening.
Therefore, "rhachischisis" refers to a condition characterized by the splitting or clefting of the spine, often associated with neural tube defects. The addition of "totalis" indicates that the splitting or clefting is present throughout the entire length of the spine.