European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society
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Synthetic cages are commonly used in posterior and transforaminal lumbar interbody fusion procedures. Using morselized corticocancellous bone from spinous processes and laminae has been suggested as an alternative, especially in low-resource settings where access to synthetic cages is limited. The aim of this study was to compare radiographic and functional outcomes of synthetic cages with those of morselized local autograft. ⋯ Usage of morselized corticocancellous autograft to achieve interbody fusion can be a suitable alternative to synthetic cages, especially in low-resource settings where the cost of synthetic cages can be prohibitive.
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5q-spinal muscular atrophy (SMA) is a treatable neuromuscular disorder associated with scoliosis in up to 90% of patients. New SMA therapies could mark a paradigm shift in scoliosis management, but their effects on scoliosis development remain unclear. This study aims to observe scoliosis progression in the current treatment landscape to inform management strategies. ⋯ The observations made in this study suggest that the effects of SMA therapies do not prevent scoliosis development. The improved prognosis may lead to a growing cohort of SMA type 1 and 2 patients with early onset scoliosis who require early growth-friendly surgical interventions.
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To devise a mathematical model for estimating the intraoperative lowest instrumented vertebra (LIV) tilt angle using preoperative supine left side-bending (LSB) radiographs in adolescent idiopathic scoliosis (AIS) patients with Lenke type 1 and 2 (non-AR curves), and to review its clinical and radiological outcomes. ⋯ Achieving an intraoperative LIV tilt angle (β) greater than or equal to the preoperative α angle derived (β ≥ α) may help avoid the distal AO phenomenon.
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Hereditary Multiple Osteochondromas (HMO), previously known as Multiple Hereditary Exostoses (MHE), is a genetic disorder characterized by the formation of multiple, benign, exostoses (osteochondromas) growing from the metaphyseal region of long bones as well as from the axial skeleton. Lesions originating from the lumbar spine region are rare, and are most common growing from the posterior element of the vertebrae. HMO associated osteochondromas are difficult to treat due to continuous and incontrollable growth of these lesions and a lifetime risk for malignant transformation. ⋯ We describe a 360-degree surgical resection with application of a 3D printed model, navigation, and mini-invasive techniques. Our report may be useful and inspire spine surgeons to apply similar techniques to treat complex spine lesions.