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What is Dural tear and explain in detail?
Dural tear is a tear occurring in the dura mater of the brain. It is usually caused as a result of trauma or as a complication following surgery.

Diagnosis
In case of head injury, a dural tear is likely in case of a depressed skull fracture. A burr hole is made through the normal skull near the fractured portion, and Adsons elevator is introduced. Underlying dura is separated carefully from the overlying depressed bone fragments. The dura that is now visible is carefully examined to exclude any dural tear.

Treatment
The whole extent of the dural tear is exposed by removing the overlying skull. The ragged edges of the tear are excised. However, care should be taken not to excise too much dura as it may increase the chances for spread of infection into the subarachnoid space