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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The goal of the study was to describe the lag screw-rod (LSR) technique for the treatment of unstable Hangman's fracture as an attempt to pull C2 vertebral body back to posterior elements easily and immobilize C2 relative to C3 simultaneously. ⋯ The LSR technique is an effective and reliable treatment for unstable Hangman's fractures. The technique has the advantages of pulling back the C2 vertebral body back to posterior elements easily and immobilizing C2 relative to C3 simultaneously.
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To describe vertebral artery (VA) course at the C0-C1-C2 complex in patients with congenital bony craniovertebral junction (CVJ) anomalies. ⋯ In occipitalization of the atlas, the VA course is usually abnormal-typically passing through a canal within the C0-C1 fused complex or below the C1 arch. A redundant VA loop is more likely to be seen in os odontoideum and irreducible atlantoaxial dislocation. Careful study of the vertebral artery course with 3D CT angiography is mandatory while contemplating CVJ realignment surgery in congenital anomalies of the CVJ.
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Software-based planning of a spinal implant inheres in the promise of precision and superior results. The purpose of the study was to analyze the measurement reliability, prognostic value, and scientific use of a surgical planning software in patients receiving anterior cervical discectomy and fusion (ACDF). ⋯ The surgical planning software showed high accuracy in the measurement of height differences and lower accuracy values with angle measurements. Both the prognosticated height and angle values were arbitrary. Global ROM, ROM of the fused and intact segments, is restricted after ACDF.
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Biomechanical investigation. ⋯ A two-level corpectomy with cement-augmentation results in a significantly reduced ROM. In comparison with the conventional anterior screw-and-plate fixation, it represents a significantly stabilized two-level anterior construct. This might be a treatment option for patients with a two-level corpectomy associated with reduced bone mineral density, to avoid an additional dorsal instrumentation.
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The aim of this study was to describe the disease-related sagittal balance changes in relation to the sacro-pelvic morphology of Parkinson's Disease patients with different duration of disease. ⋯ Female gender, high PI and high LL together with a low PL-C7 distance can be considered as protective factors for spinal imbalance and fall risk; negative factors are represented by male gender, longer disease duration, higher H&Y Class, and low PL-L3 distance. Looking at the pelvis is revealing new important insights in spinal disease management, both surgical and rehabilitative.