Background: Few studies discuss the complication of pulmonary cement embolism (PCE) due to cement augmented pedicle screw instrumentation (CAPSI) of the thoracolumbar spine.
Case Description: A 62 female with a history of multiple myeloma and Sjogren's syndrome on chronic steroids developed an osteoporotic L1 compression fracture and underwent posterior stabilization with a T10-L4 CAPSI. However, postoperatively, the patient developed a surgical site infection and a PCE, resulting in severe respiratory compromise and death 1 month later.
Conclusion: When performing a T10-L4 thoracolumbar CAPSI (i.e., augmented pedicle screw instrumentation of the thoracolumbar spine) to address an L1 osteoporotic compression fracture, a 62 year old patient developed a life ending multi organ deficiency due to sepsis together with a PCE.
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http://dx.doi.org/10.25259/SNI_506_2024 | DOI Listing |
J Clin Neurosci
December 2024
Department of Orthopedics, The First Affiliated Hospital of Harbin Medical University, 199 Dazhi Road, Harbin 150001, China. Electronic address:
Background: The atlantoaxial vertebral model was established in order to compare the biomechanical properties of C2 pedicle and translaminar screws from the perspective of the screws themselves.
Methods: A finite element model of the screw-vertebrae was developed. The screw load-displacement ratios were analysed under up/down and left/right load conditions; the vertebral load-displacement ratios under flexion/posterior extension (FLX/EXT), left/right lateral bending (LLB/RLB), and left/right rotation (LAR/RAR) load conditions; the bone-screw interface stress values and screw load-displacement ratios under physiological load conditions; and the structural stress values of the screw-rod structure under front/back and left/right load conditions.
Pak J Med Sci
December 2024
Prof. Dr. Asif Bashir, MD, FAANS, FACS Professor of Neurosurgery, Department of Neurosurgery Unit-I, Punjab Institute of Neurosciences, Lahore, Pakistan.
Objective: To compare correction of kyphotic deformity (KD) and implant failure (IF) in percutaneous short-segment pedicle screws fixation (SSPF) with index level versus long-segment pedicle screws fixation (LSPF) without index level for traumatic thoracolumbar (TL) fractures.
Methods: This prospective study comprised 56 patients who met the study's inclusion criteria from the Department of Neurosurgery at the Punjab Institute of Neurosciences in Lahore, Pakistan presented between June 2022 and May 2023. We separated them into two groups: Group-A and Group-B, each with 28 patients.
PLoS One
December 2024
Department of Biomechanical Engineering, Faculty of Mechanical Engineering, Delft University of Technology, Delft, The Netherlands.
The demographic shift has increased the demand for surgical interventions to address age-related degenerative diseases, such as spinal fusion. Accurate placement of pedicle screws, crucial for successful spinal fusion, varies widely with physician experience. Integrating tissue sensing into spine surgical instruments allows intraoperative examination of tissue properties, providing surgeons with additional information to prevent screw misplacement.
View Article and Find Full Text PDFPLoS One
December 2024
Bio-Inspired Technology Group, Faculty of Mechanical Engineering, Department of BioMechanical Engineering, Delft University of Technology, Delft, The Netherlands.
Pedicle screws have long been established as the gold standard for spinal bone fixation. However, their fixation strength can be compromised in cases of low bone density, particularly in osteoporotic bone, due to the reliance on a micro-shape lock between the screw thread and the surrounding bone. To address this challenge, we propose augmenting conventional pedicles screws with a curved compliant anchor.
View Article and Find Full Text PDFJ Am Acad Orthop Surg
December 2024
From the Department of Orthopedic Surgery, School of Medicine, Pontificia Universidad Catolica de Chile, Santiago, Chile.
Lumbar pedicle screw placement in spinal surgery is complex and prone to errors, with notable risks to patients. Standard training methods, such as mentorship in operating rooms, pose safety concerns, prompting the need for alternative training tools. This study aimed to validate and use a three-dimensional (3D)-printed simulation model for lumbar pedicle screw insertion training and assess its effectiveness compared with standard methods.
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