Trephine
Trephine
Trephine (/trɪˈfaɪn/ or /ˈtrɛfɪn/) is a surgical instrument with a cylindrical blade. It can be used in various procedures to remove a circular section of bone or tissue. The term "trephine" originates from the Greek word "trupanon" meaning a borer.
History
The use of trephines dates back to ancient times, with evidence of trepanation (the process of cutting into the skull) found in prehistoric human remains. The procedure was used to treat a variety of ailments, from migraines to mental disorders. The modern trephine was developed in the 18th century and has since been refined for use in various medical procedures.
Usage
A trephine is commonly used in orthopedic and neurosurgical procedures. In orthopedics, it is used to perform a bone biopsy or to relieve pressure in the case of a bone marrow biopsy. In neurosurgery, a trephine may be used to perform a craniotomy, a procedure in which a section of the skull is removed to access the brain.
Related Terms
- Trepanation: The process of cutting into the skull, often with a trephine.
- Craniotomy: A surgical operation in which a bone flap is temporarily removed from the skull to access the brain.
- Bone biopsy: A procedure to remove a small sample of bone for laboratory testing.
- Bone marrow: The spongy tissue inside some of your bones, such as your hip and thigh bones. It contains stem cells that can develop into red blood cells, white blood cells, or platelets.
External links
- Medical encyclopedia article on Trephine
- Wikipedia's article - Trephine
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