Extradural only (no dural opening, may include resection of atlanto-occipital membrane) |
Extradural only (no dural opening, may include resection of atlanto-occipital membrane) |
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Extradural only (no dural opening, may include resection of atlanto-occipital membrane) |
Dural splitting/scoring (=incision of outer layer of dura) |
Dural splitting/scoring (=incision of outer layer of dura) |
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Dural splitting/scoring (=incision of outer layer of dura) |
Dural opening only (dura stays open at end of surgery) |
Dural opening only (dura stays open at end of surgery) |
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Dural opening only (dura stays open at end of surgery) |
Dural augmentation with duraplasty |
Dural augmentation with duraplasty |
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Dural augmentation with duraplasty |
Primary durrarraphy without duraplasty |
Primary durrarraphy without duraplasty |
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Primary durrarraphy without duraplasty |