What is a “keyhole” craniotomy?
Retro-sigmoid craniotomy (usually called “keyhole” craniotomy) is a minimally-invasive operational method done to remove brain tumors. This method allows for the removal of head base tumors through a small hole behind the ear, giving access to the cerebellum and brainstem. A neurosurgeon may use this method to reach specific tumors, such as meningiomas and acoustic neuromas (vestibular schwannomas).
Types of brain tumors treated with “keyhole” craniotomy:
The retro-sigmoid craniotomy is one of several treatment choices for brain tumors. It may be done for the following kinds of brain tumors:
- Acoustic neuromas
- Metastatic brain or spine tumors
- Skull base tumors
Benefits of “keyhole” craniotomy:
Retro-sigmoid craniotomy results in:
- Shorter pain than an open craniotomy.
- Faster healing than an open craniotomy.
- Least scarring.