Procedure
MISS fusions and decompression procedures (such as diskectomy and laminectomy) are performed using a tubular retractor. During the procedure, a small incision is made and the tubular retractor is inserted through the skin and soft tissues down to the spinal column. This creates a tunnel to the small area where the problem exists in the spine. The tubular retractor holds the muscles open (rather than cutting them) and is kept in place throughout the procedure.
The surgeon accesses the spine using small instruments that fit through the center of the tubular retractor. Any bone or disk material that is removed exits through the retractor, and any devices necessary for fusion — such as screws or rods — are inserted through the retractor. Some surgeries require more than one retractor or more than one incision.
The surgeon typically views the important structures of the spine during surgery using a microscope.
At the end of the procedure, the tubular retractor is removed and the muscles return to their original position. This limits the muscle damage that is more commonly seen in open surgeries.
Recovery
Minimally invasive procedures can shorten hospital stays. The exact length of time needed in the hospital will vary with from patient to patient and with the individual procedure but, in general, MISS patients go home on the same day or in 1 to 2 days. Most patients having traditional surgery stay in the hospital for 3 to 5 days.
Because minimally invasive techniques do not disrupt muscles and soft tissues, it is believed that postoperative pain is less than pain after traditional open procedures. Although you should still expect to feel some discomfort, advancements in pain control now make it easier for your doctor to manage and relieve your pain.
Sardar Spine - Top Spinal Disorders Surgeon 