[Conservative lumbar laminectomies. Technic and results]

The patient is lying on his left side. Paravertebral muscles of the right side are separated from the spinous processes and from the right laminae. Spinous processes are then cut at their base, and hold with a strong retractor Laminectomies are then feasible, as wide as necessary. Reconstruction is particularly strong. Our 3 years experiences of 200 cases, with clinical and radiologically very good late results, is underlined.