A narrowing of the lumbar or cervical spinal canal, which causes compression on nerve roots.
Spinal stenosis occurs in middle-aged or elderly people.
It may be caused by osteoarthritis , Paget's disease , or as a result of injury that causes pressure on the nerve roots. It occurs in 5 out of 10,000 people. There is no known prevention. Symptoms pain in the buttocks, thighs, or calves that is worse with walking or exercise numbness in the buttocks, thighs, or calves, that is worse with standing, walking, or exercise back pain that radiates to the legs weakness of the legs neck pain leg pain Signs and tests An examination of reflexes of lower extremities reveals asymmetry. Neurologic examination confirms leg weakness and decreased sensation in the legs.