[Lumbar canal stenosis in Ouagadougou: aetiological, clinical aspects and prognosis regarding 80 cases].

The authors report their experience about 80 cases operated for lumbar spinal stenosis. Etiological clinical aspects and prognosis are studied. Lumbar arthrosis (83.8%) is the most frequent aetiology. The mean age is 50.7 years. Men are most affected than women (sex-ratio 2/1). Heavy work has a part to play in the genesis, in effect it tends to low the age of symptomatic stenosis. Lumbar and radicular pains are the most frequent symptoms (82.5%). Neurogenic intermittent claudication is less frequent (65%). Heavy cases with neurologic complications are frequent (32.5%). Surgical results are satisfactory in 74.3% of the cases. The authors insist in the interest of extensive laminectomy, respecting however as much as possible, the structure of stability of the vertebral column.