General Advantages: 

EXTREMELY GOOD VISUALISATION:

There is an incomparably good view of the anatomy. A strong magnification of the nerves with a very high resolution 4K monitor is used.

No damage to healthy tissue of the back:

Very small scar on the skin of <8mm. Purely aesthetic advantage.

Less to no blood loss.

No muscle damage.

Less infection.

Less or usually no ligament or bone resection: no instability

Faster operation

Less scarring around the nerves

Faster recovery after a short hospital stay

Much less pain from the operation:

Most people hardly feel can indicate where the procedure was performed.

Patients are allowed out of bed a few hours after the operation.

Low need to take painkillers

Quick resumption of work

AVOIDING FUSION (FIXING) AND DISC PROSTHESIS:

With full-endoscopic procedures, a PLIF/TLIF/OLIF/XLIF( fixation of the back vertebrae) ACIF ( fixation of the neck vertebrae )

Also disc prosthesis is avoided.

This means avoiding major and aggressive operations.

The operation is also possible for heavier patients:

Incision remains 8 mm and the working tube is the same size for everyone (actually “small').

FUTURE OPERATIONS ARE SAFER:

Besides these immediate advantages, there is also an immense advantage for the future. Due to the minimal tissue scar formation, future operations can be performed more safely. Again endoscopic through the same access is therefore possible.

In case of a relapse after an earlier spinal surgery:

There is usually scarring around the nerves and spinal cord, which makes reoperation more dangerous in ordinary back surgery. However, in the case of scarring after an earlier classic hernia operation, the transforaminal access is by a different route, via the side in plate of the back.  The transforaminal access is like a first hernia operation, you can simply bypass the old scar area. 

Benefits specific to transforaminal access:

No scarring:

The operation doesn't happen in the spinal cord canal, nerves don't need to be touched. Scarring can be the cause of persistent radiation pain that is difficult to treat after classic hernia surgery.

Very large herniations:

Herniations that almost completely fill the spinal cord canal can be removed more safely because there is no need to push the nerves and spinal cord aside for surgical access. In large hernias, the nerves are already severely pinched and manipulation can cause additional damage. 

Foraminal and extra-foraminal herniations:

Due to the nature of the technique, these herniations can be removed very elegantly in this "difficult" area. No normal anatomical structure needs to be loosened or resected in order to cope with the herniated disc. Major operations become superfluous. In the case of classically trained back surgeons, it is sometimes suggested to fix the back. to much bone has to be removed to get access to this difficult area that the back becomes unstable (abnormally mobile). In order to stabilize these vertebrae the chess has to be fixed. 

Foraminal stenosis:

There is direct access and visualisation to treat this stenosis.