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Analysis of scoliosis rod deformation after cutting with a surgical rod cutter.
Spine Deform
January 2025
Department of Orthopedic Surgery, Children's Mercy Kansas City, Kansas City, Missouri, USA.
Purpose: Scoliosis is a complex multi-dimensional deformity of the spine that is common in children and adults. Of the various treatments for scoliosis, one is posterior spinal fusion with instrumentation. The rods typically used are composed of titanium or cobalt-chrome.
View Article and Find Full Text PDFInstrumented Facet Fusion in the Lumbosacral Spine: Long-Term Clinical and Radiographic Results.
World Neurosurg
January 2025
Department of Neurosurgery, Gacheon University Gil Hospital, Incheon, Republic of Korea. Electronic address:
Objective: Surgical treatments for degenerative lumbar spinal disorders involve decompression of neural structures and arthrodesis to address pain from unstable intervertebral segments. Lumbar instrumented facet fusion (IFF), a less invasive technique, has shown positive short-term outcomes, but reports on its long-term outcomes are scarce. This study aims to report its long-term biomechanical stability and clinical outcomes.
View Article and Find Full Text PDFDiagnosis, Classifications and Treatment of Os Odontoideum: WFNS Spine Committee Recommendations.
Spine (Phila Pa 1976)
January 2025
Department of Neurosurgery, Lilavati Hospital and Research Center, Bandra, Mumbai, India.
Study Design: A systematic literature review and consensus using Delphi method.
Objective: The aim was to formulate consensus recommendations regarding the natural history, diagnosis, classification and optimal treatment of Os Odontoideum with global applicability.
Summary Of Background: Os odontoideum (OO) is a rare anomaly of the cranio-vertebral junction (CVJ).
Biomechanical analysis of a newly designed and 3D printed plate-locking interbody cage: an observational study of finite element analysis.
Sci Rep
January 2025
Department of Orthopaedic Trauma, The Second Affiliated Hospital of Dalian Medical University, No. 467 Zhongshan Road, Shahekou District, Dalian, 116027, Liaoning, China.
Anterior cervical interbody fusion (ACDF) has become a classic surgical procedure for the treatment of cervical degenerative diseases, and various interbody cages are widely used in this procedure. We used 3D printing technology to produce a new type of plate-locking cage, anticipating to achieve high fusion rate with the high biomechanical stability. This study is to compare the biomechanical characteristics between a newly designed interbody cage and a conventional Zero-profile cage during ACDF using finite element analysis.
View Article and Find Full Text PDFEffect of individual spinal muscle activities on upright posture using a human body finite element model.
Sci Rep
January 2025
Department of Orthopaedic Surgery, School of Medicine, International University of Health and Welfare, 4-3, Kozunomori, Narita, Chiba, 286-8686, Japan.
The occurrence of diseases characterized by irregular spinal alignment, such as kyphosis, lordosis, scoliosis, and dropped head syndrome (DHS) is increasing, particularly among older adults. DHS is characterized by an excessive forward tilt of the head and neck, causing the head to droop. Although it is believed that muscle activity plays a role in both the onset and treatment of DHS, the underlying mechanisms remain unclear.
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