TESSYS® Surgical Technique for disc prolapses
The TESSYS® procedure utilizes a lateral, transforaminal, endoscopic approach for the removal of herniated intervertebral disc material, resulting in a less traumatic approach for the patient than the usual dorsal approach. With the TESSYS® technique, sequestered disc material is removed completely and directly through the foramen, which is gradually widened using specialized reamers and instruments. The patient can be placed in either the prone or lateral position. If the surgery is performed under MAC, patients will react immediately upon contact with neural structures.
A careful planning of the main point of access to the herniated disc is crucial for positive surgical results. Magnetic Resonance Imaging (MRI) and/or computer tomography (CT), as well as multiple conventional x-ray images have to support the TESSYS® surgery.
TESSYS® can be used for all kind of deherniation or decompression of the lumbar spine (including L5/S1). The intervertebral foramen is used for safe access to the spinal canal. In order to avoid irritation of the nerves in the foramen, the caudal part of the intervertebral foramen is widened millimeter by millimeter using special reamers. Especially, if due to location of the pathology or the age of the patient the foramen is narrow. In that case bone material has to be removed. Using special endoscopes with a working channel, herniated disc material can be removed with forceps.