The patient underwent a craniotomy for evacuation of subdural hematoma due to trauma.The surgeon was utilizing a 14 mm drill bit, the drill bit "plunged" and became lodged inside the skull.An attempt was made to remove the pieces, however, the pieces separated.Using a high-speed electric drill and an m8 drill bit, the craniostomy was widened circumferentially and the drill bit was removed.The dura was lacerated but the brain was noted to be uninjured underneath.The procedure was completed with no further complications or known patient injury.
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