Trepanation

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Trepanation

 

(also trephination), in medicine, the surgical section of the medullary cavity of a bone. The operation is performed with special instruments, including a trephine (or crown saw), forceps, and gouges. In former usage, “trepanation” referred only to the surgical opening of the cranial cavity to remove a brain tumor or hematoma, for example, or to apply a ligature to an injured vessel. In modern medical practice, trepanation is also performed on the tubular bones in cases of osteomyelitis, and on the mastoid in mastoiditis. Dental trepanation is the surgical formation of an opening through the gum and bone of a tooth. Corneal trepanation is the surgical cutting of the sclera. Trepanation is also used for the withdrawal of bone marrow for examination, as in sternal biopsy.

References in periodicals archive ?
Situations or procedures that pose an increased risk for accumulation of intracranial air include surgical interventions, such as burr holes (Gozur, 1987), posterior fossa surgery (Suri et al.
For severe TBIs, the Hummingbird Synergy is the only device to integrate the functions of intracranial pressure (ICP), ventricular drainage with access for a diagnostic probe through a single burr hole.
Newell noted, "Lysis and drainage of spontaneous ICH and IVH with reduction of mass effect can be accomplished rapidly and safely by sonothrombolysis using stereotactically delivered drainage and ultrasound catheters through a burr hole.
Jude Medical has recently received CE Mark approval for the Guardian[TM] Burr Hole Cover System, a DBS system component that allows physicians to efficiently secure the electrical leads.
The sham surgery involves the drilling of a burr hole into the skull at the site of injection.
12-14 days after tumor implant, Cerebragel was injected by a stereotactic procedure through the same burr hole that was used for implantation of the tumor.
The Equi-Flow(TM) Valve and the Burr Hole Valve are used for the treatment of hydrocephalus, a condition of excess fluid on the brain.
Food and Drug Administration for its Cranial Bone Void Filler product, indicated for use in the repair of neurosurgical burr holes.