Related Experiment Video
Updated: Feb 6, 2026

The Preparation of Oblique Spinal Cord Slices for Ventral Root Stimulation
Published on: October 13, 2016
An Unusual Case of Split Cord Malformation with Simultaneous Ventral and Dorsal Bony Spur at a Single Site: A
Ashutosh Agarwal1, Amol Raheja1, Sachin A Borkar1
1Department of Neurosurgery and Gamma Knife, All India Institute of Medical Sciences, New Delhi, India.
Abstract:
Split cord malformation (SCM) with simultaneous ventral and dorsal bony spur at a single site is an extremely rare entity with only one other case reported so far. We present a second such case in a 13-month-old female child, who presented with a skin dimple over the lumbar region with overlying hairy patch without any associated lower limb weakness or urinary complaints. Imaging demonstrated a complex Type I SCM with simultaneous ventral and dorsal bony spur at L4-L5 level. Intraoperatively, the patient was confirmed to have a Type Ic SCM with a ventrally based bony spur going dorsally to attach on the hypertrophied posterior arch of L4 and a dorsal spur going ventrally to attach on the L4 vertebral body. After meticulous microsurgical excision of the spur, the child was stable and developed no fresh neurological deficits. We discuss the relevant surgical implications and possible embryological mechanisms involved in such a complex SCM.
Related Concept Videos
Unusual Results
According to the range rule of thumb, any value above or below two standard deviations, 2σ from the mean, μ is considered unusual.
Maximum unusual value =...
z Scores and Unusual Values
This score indicates how far a value is from the mean in terms of standard deviation. For example, if a data value has a z score of +1, the researcher can infer that the particular data value is one standard deviation above the mean. If another data...
¹H NMR: Complex Splitting
Splitting diagrams or splitting tree diagrams are routinely used to depict such complex couplings. While drawing splitting diagrams, the splitting with the larger coupling constant is usually applied...
¹H NMR Signal Multiplicity: Splitting Patterns
Spinal Cord
IR Spectrum Peak Splitting: Symmetric vs Asymmetric Vibrations

