[Postero-lateral bone grafting in the lumbar and lumbo-sacral spine (author's transl)].

78 arthrodeses of the lumbar and lumbo-sacral region were performed by a postero-lateral approach. The technique is described and the results. The patients were reviewed after an average follow-up of 4 years. Fusion was obtained in 83 p. 100 of cases. The operation was performed for low back pain, spondylolisthesis, or lumbar arthrosis. Indications are discussed in relation to the etiology.