Surgical treatment of sacroiliac joint infection Treatment of lumbar spondylodiscitis by anterior debridement, fusion and posterior percutaneous fixation compared to PLIF Is there a better outcome of lumbar disc replacement when the Sodium fluoride PET/CT is used as an objective diagnostic tool to exclude facet joint arthritis? Acute nontraumatic cervical disk herniation with incomplete tetraplegia. A case report and review of literature EVALUATION OF MORE THAN ONE SEGMENT FUSION IN DEGENERATIVE LUMBAR SPINE