We analysed the causes of multiply operated back (MOB) in 26 cases treated with salvage operation in our clinic and evaluated the postoperative results. The initial diagnoses before the first surgery were lumber disc herniation in 17, lumber canal stenosis in 4 and spondylosis and spondylolytic spondylolisthesis in 5. The main caure was incomplete excision of herniated disc and hard disc. Sixty-nine percents of the patients showed good results after the salvage operation in which postero-lateral fusion was combined with in most of them for the stabilization of the lumbar spine.
