- Uncommon: 2-5% of adults with extradural hematoma.
- Classification of bilateral EDH by Kett-White and Martin:
- Bilateral and separate extradural hematoma located in the convexities
- Resulting from dura being stripped from the skull independently on both sides.
- Bilateral extradural hematoma straddling the midline, resulting from injury to the sagittal sinus.
- Operative techniques for bilateral EDH:
- Surgical evacuation is necessary for cases resulting from sagittal sinus injury.
- Technique varies
- Including preserving the midline skull vault and using dural tenting sutures
- In selected cases, exposing the sagittal sinus and attempting primary repair.
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