Protruziya intervertebral disc in a narrow channel is expressed more complications. In the case of lateral and zadnelateralnyh protruzy channel trilistnoy form involvement koreshkovyh disorders observed regardless of the size sagittalnogo spinal canal. Risk factors are degenerative changes and soft tissue spinal canal, resulting in the shrinking of both central and koreshkovyh channels. poor health are men over 40 years. The first symptom is usually a disc hernia pain in the lumbar area, but for a reliable diagnosis must be available within a few weeks combination of the following characteristics : 1. The pain of the spread of koreshkovomu type, the growing pressure to improve vnutribryushnogo (when people cough, sneeze, smehe) that is unusual for infringing roots in the lateral canals. The pain in the leg growing upright and continues horizontally, unlike stenosis koreshkovyh channels, which often intensity of pain at night increases. 2. Up to 50% of patients with disc pathology have the inclination angle of the party is easy to lie down due to the decrease mainly lumbar muscles. Although reliable connection between "interested" disk stamped and side slope not shown. Most states tilt left. Can change sides. 3. The quiz show straight legs up to a limit of 50 ° virtually patognomonichen for damage to the drive.