File:Nerve root anomalies.png: Difference between revisions
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Classification of conjoined nerve roots.<ref>{{#pmid:22535819}}</ref> | |||
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! Type !! General Anomaly !! n-A !! n-B | |||
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| Type 1 ||Aberrant courses ||1A: two pairs of nerve roots arise from a single dural sleeve || 1B: A dural sleeve arises from a low position on the dural sac | |||
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| Type 2 ||Variable nerve roots in an intervertebral foramen ||2A: A foramen is unoccupied by a nerve, with the foramen above or below containing two sets of roots || 2B: A foramen contains a supernumerary set of roots | |||
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| Type 3 ||colspan="3"|Extradural anastomoses between roots in which a bundle of nerve fibres leaves one dural sleeve to enter an adjacent sleeve. May be superimposed on a type 2 | |||
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Latest revision as of 20:13, 24 April 2021
Classification of conjoined nerve roots.[1]
| Type | General Anomaly | n-A | n-B |
|---|---|---|---|
| Type 1 | Aberrant courses | 1A: two pairs of nerve roots arise from a single dural sleeve | 1B: A dural sleeve arises from a low position on the dural sac |
| Type 2 | Variable nerve roots in an intervertebral foramen | 2A: A foramen is unoccupied by a nerve, with the foramen above or below containing two sets of roots | 2B: A foramen contains a supernumerary set of roots |
| Type 3 | Extradural anastomoses between roots in which a bundle of nerve fibres leaves one dural sleeve to enter an adjacent sleeve. May be superimposed on a type 2 | ||
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