Microvascular Decompression for Geniculate Neuralgia through a Retrosigmoid Approach

Area of Science:

• Neurosurgery
• Microsurgical Anatomy
• Cranial Nerve Surgery

Background:

• Facial pain syndromes can involve cranial nerves V, VII, and IX.
• Microvascular decompression is a surgical treatment for these conditions.
• Understanding microsurgical anatomy is crucial for effective intervention.

Purpose of the Study:

• To describe the retrosigmoid approach for microvascular sectioning of the nervus intermedius.
• To detail the decompression of the 5th and 9th cranial nerves.
• To emphasize microsurgical anatomy and technique in the cerebellopontine angle.

Main Methods:

• Retrosigmoid craniectomy in lateral decubitus position.
• Subarachnoid dissection of the cerebellopontine angle.
• Identification and sectioning of the nervus intermedius; decompression of cranial nerves V and IX.

Main Results:

• Successful sectioning of the nervus intermedius.
• Decompression of the 5th and 9th cranial nerves.
• Resolution of patient's facial pain post-surgery.

Conclusions:

• Microsurgical anatomy of the cerebellopontine angle is essential for treating facial pain.
• Subarachnoid dissection and meticulous microsurgical techniques are vital for successful microvascular decompression.