Surgical management is indicated for children and adolescents with spondylolysis and low-grade spondylolisthesis (< or =50% slip) who fail to respond to nonsurgical measures. In situ posterolateral L5 to S1 fusion is the best option for those with a low-grade slip secondary to L5 pars defects or dysplastic spondylolisthesis at the lumbosacral junction. Pars repair is reserved for patients with ...

This case report describes the first case of a bone bridge formation across the left L5/S1 neuroforamen after instrumented posterolateral fusion for L5/S1 isthmic spondylolisthesis. Our patient was a 70-year-old lady who had grade 2, L5/S1 isthmic spondylolisthesis and bilateral S1 nerve root compression. She suffered from mechanical low back pain and neurogenic claudication, with radicular pai...

Journal of Thoracic Oncology • Volume 7, Number 9, September 2012 The echinoderm microtubule-associated protein-like 4-anaplastic lymphoma kinase (EML4-ALK) gene fusion occurs in 2% to 7% of non–small-cell lung cancer (NSCLC) cases and is typically identified by Vysis ALK Break-Apart fluorescent in situ hybridization (FISH) assay. Tumors expressing this fusion respond to treatment using crizoti...

STUDY DESIGN In an in vivo sheep model, the effects of spinal fusion and kyphotic deformity on the neighboring motion segments were analyzed. OBJECTIVES To investigate the effects of spinal fusion and kyphotic deformity on the adjacent motion segment. SUMMARY OF BACKGROUND DATA The in vivo effects of kyphotic deformity on the neighboring motion segments have not been investigated in any stu...

we have analyzed paraffin sections from 55 patients with histologically confirmed hodgkin’s disease (hd) for the presence of epstein-barr virus (ebv) markers using in situ hybridization to detect the ebv-encoded rnas (ebers) and immunohistochemistry to identify latent membrane protein-1 (lmp1) expression. tissue specimens from 55 cases of hodgkin’s disease included 22-mixed cellularity (mc), 27...