Spine
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A cadaveric biomechanical experiment was conducted to assess the range of motion (ROM) and screw strain at S1 in a long instrumented spinal fusion construct to compare the effects of various surgical strategies for L5-S1 stabilization. ⋯ The results of this study indicated that iliac screws and AxiaLITR provide similar stability at L5-S1, while significantly reducing the strain on the S1 screws.
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A case report of a patient with adhesive arachnoiditis after combined spinal and epidural anesthesia. ⋯ This is the first report of a patient with a giant AASC and ES caused by spinal and epidural anesthesia. Although the optimal surgical treatment for these conditions remains unclear, shunting of the cyst effectively prevented the progression of symptoms.
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Observational and quantitative study with 3-dimensional (3D) computerized tomographic (CT) analysis. ⋯ Instability at the C1-C2 junction in congenital anomaly with occipitalization is likely a direct result of the anteversion of LAA and bony malformation of this region, and it aggratates with the increasing obliquity of anteversion of the AAF. Demonstrating 3D morphological changes of LAA may provide a new means to diagnosis instability in congenital anomaly at craniovertebral junction and a basis for rational surgical treatment.
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In this study, the effect of calcitonin on lumbar spinal fusion was studied in a New Zealand rabbit model. ⋯ Calcitonin can enhance lumbar spinal fusion. One mechanism might be through upregulating genes involved in osteogenesis and angiogenesis.
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Comparative Study Clinical Trial
Hybrid grafting using bone marrow aspirate combined with porous β-tricalcium phosphate and trephine bone for lumbar posterolateral spinal fusion: a prospective, comparative study versus local bone grafting.
A prospective, comparative study. ⋯ The HBG promoted posterolateral spinal fusion without significant donor site morbidity. Because of its efficacy and safety, this hybrid construct seems promising as an alternative to conventional iliac bone grafts for lumbar spinal fusion.