CPT® Code 61597

Transcondylar (far lateral) approach to posterior cranial fossa, jugular foramen or midline skull base, including occipital condylectomy, mastoidectomy, resection of C1-C3 vertebral body(s), decompression of vertebral artery, with or without mobilization

The transcondylar (far lateral) approach to the posterior cranial fossa, jugular foramen, or midline skull base is a surgical technique utilized primarily for accessing and treating conditions affecting the lower part of the brain and surrounding structures. This approach is particularly relevant for the resection of neoplastic tumors, which are abnormal growths that can be benign or malignant, as well as vascular lesions that may compromise blood flow or nerve function. The procedure also facilitates decompression of the vertebral artery and cranial nerves, which can alleviate symptoms associated with nerve compression or vascular obstruction. The posterior fossa is located at the base of the skull and houses critical components of the central nervous system, including the cerebellum and brainstem, which are essential for motor control and vital functions. The jugular foramen serves as a passageway for important cranial nerves (IX, X, and XI) and contains the sigmoid sinus, which transitions into the jugular vein, playing a crucial role in venous drainage from the brain. The surgical approach involves a meticulous incision and dissection through various layers of tissue, allowing for direct access to these vital structures while minimizing damage to surrounding areas. This technique requires careful planning and execution to ensure optimal outcomes and reduce the risk of complications.