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Spine osteotomy

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https://www.readbyqxmd.com/read/29165712/use-of-an-articulating-hinge-to-facilitate-cervicothoracic-deformity-correction-during-vertebral-column-resection
#1
Rajiv R Iyer, Benjamin D Elder, Tomas Garzon-Muvdi, Justin M Sacks, Ian Suk, Jean-Paul Wolinsky
BACKGROUND: Surgical treatment of severe cervicothoracic kyphotic deformity may require the use of 3-column osteotomies such as the pedicle subtraction osteotomy and vertebral column resection (VCR), or VCR with anterior longitudinal ligament resection. Such procedures are extensive and are associated with high intra- and perioperative morbidity, in part, due to the need for risky reduction maneuvers. OBJECTIVE: To describe a novel technique utilizing a laterally placed articulating hinge to facilitate kyphotic deformity correction of the cervicothoracic spine...
November 18, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29164330/posterior-only-approach-to-open-wedge-osteotomy-in-the-thoracolumbar-spine
#2
Nils Hansen-Algenstaedt, Melanie Liem, Johannes Holz, Alf Giese
No abstract text is available yet for this article.
November 21, 2017: European Spine Journal
https://www.readbyqxmd.com/read/29164164/female-sex-is-a-risk-factor-for-failure-of-hip-arthroscopy-performed-for-acetabular-retroversion
#3
Kirsten L Poehling-Monaghan, Aaron J Krych, Bruce A Levy, Robert T Trousdale, Rafael J Sierra
Background: The success of hip surgery in treating acetabular retroversion depends on the severity of the structural deformity and on selecting the correct patient for open or arthroscopic procedures. Purpose: To compare a group of patients with retroverted hips treated successfully with hip arthroscopy with a group of patients with retroverted hips that failed arthroscopic surgery, with special emphasis on (1) patient characteristics, (2) perioperative radiographic parameters, (3) intraoperative findings and concomitant procedures, and (4) patient sex...
November 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29155339/body-mass-index-predicts-risk-of-complications-in-lumbar-spine-surgery-based-on-surgical-invasiveness
#4
Olivia J Bono, Gregory W Poorman, Norah Foster, Cyrus M Jalai, Samantha R Horn, Jonathan Oren, Alexandra Soroceanu, Subaraman Ramachandran, Taylor E Purvis, Deeptee Jain, Shaleen Vira, Bassel G Diebo, Breton Line, Daniel M Sciubba, Themistocles S Protopsaltis, Aaron J Buckland, Thomas J Errico, Virginie Lafage, Shay Bess, Peter G Passias
BACKGROUND CONTEXT: Obesity as a comorbidity in spine pathology may increase the risk of complications following surgical treatment. The BMI threshold at which obesity becomes clinically relevant, and the exact nature of that effect, remains poorly understood. PURPOSE: Identify the body mass index (BMI) that independently predicts risk of postoperative complications following lumbar spine surgery. STUDY DESIGN/SETTING: Retrospective review of the National Surgery Quality Improvement Program (NSQIP) years 2011-2013...
November 16, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29135610/meralgia-paresthetica-after-spine-surgery-on-the-jackson-table
#5
Nitin Agarwal, Jaydev B Mistry, Preeya V Khandge, David R Hansberry, Ira M Goldstein
Meralgia paresthetica is a non-life-threatening neurological disorder characterized by numbness, tingling, and burning pain over the anterolateral thigh due to impingement of the lateral femoral cutaneous nerve. This disorder has been seen in patients with diabetes mellitus and obesity, but has also been observed in patients after procedures such as posterior spine surgery, iliac crest bone grafts, lumbar disk surgery, hernia repair, appendectomies, and pelvic osteotomies that ultimately lead to compression or damage to the lateral femoral cutaneous nerve...
November 10, 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/29104840/spinal-shortening-for-recurrent-tethered-cord-syndrome-via-a-lateral-retropleural-approach-a-novel-operative-technique
#6
Jeffrey A Steinberg, Arvin R Wali, Joel Martin, David R Santiago-Dieppa, David Gonda, William Taylor
Spine shortening via vertebral osteotomy (SSVO) for recurrent tethered cord syndrome (TCS) is a novel surgical technique that avoids the complication profile associated with revision detethering. While SSVO has previously been described via a posterior approach, we describe a lateral retropleural approach for SSVO in recurrent TCS in a 21-year-old female. Our patient presented with progressive lower extremity weakness, bowel and bladder incontinence, and back pain in the setting of childhood repair of myelomeningocele and two previous detethering procedures...
August 31, 2017: Curēus
https://www.readbyqxmd.com/read/29101454/-surgical-management-of-ankylosing-spondylitis-bechterew-s-disease
#7
REVIEW
H Allouch, M Shousha, H Böhm
Ankylosing spondylitis is an inflammatory rheumatic disease that is often associated with back pain and restricted spinal movement. In the later stages of the disease, complete ossification of the entire spine and severe deformity can occur, often resulting in a marked reduction in quality of life and an increased risk of loss of independence due to diminished visual field. Patients with ankylosing spondylitis are at greater risk of spinal fractures. These are generally complex fractures associated with high morbidity and mortality; in addition, neurological deficits are not unusual...
November 3, 2017: Zeitschrift Für Rheumatologie
https://www.readbyqxmd.com/read/29080951/morphological-variation-of-the-anterior-inferior-iliac-spine-affects-hip-range-of-motion-in-flexion-after-rotational-acetabular-osteotomy
#8
Hidetoshi Hamada, Masaki Takao, Takashi Sakai, Nobuhiko Sugano
PURPOSE: Reduced range of motion (ROM) in flexion and internal rotation are associated with impaired activities of daily living (ADL) after rotational acetabular osteotomy (RAO). This study focused on the morphological variation of the anterior inferior iliac spine in developmental dysplasia of the hip (DDH) and its impact on post-operative bony ROM after RAO. This study aimed to investigate the association between bony ROM after RAO and pre-operative morphological factors of the pelvis and femur, including a positional variation of the anterior inferior iliac spine...
October 28, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/29033379/is-vertebral-column-resection-vcr-necessary-in-correcting-severe-and-rigid-thoracic-kyphoscoliosis-a-single-institution-surgical-experience
#9
Fan Hengwei, Li Xueshi, Huang Zifang, Sui Wenyuan, Lang Chuandong, Yang Jingfan, Yang Junlin
BACKGROUND: Three-column spinal osteotomies were developed to address severe and stiff kyphoscolisis. However, the optimal choice of osteotomy in these patients is still unclear. This retrospective study aims to compare the outcomes and complications between grade 4 and grade 5 osteotomies in patients with severe and stiff thoracic kyphoscoliosis. METHODS: Forty-five patients with severe and stiff thoracic kyphoscoliosis who underwent three-column osteotomy in the thoracic spine were classified into 2 groups according to the grade of osteotomy...
October 12, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29021678/surgical-planning-for-cervical-deformity-based-on-a-3d-model
#10
Juan Barges-Coll, Iulia Peciu-Florianu, Sébastien Martiniere, John Michael Duff
The treatment of fixed cervical deformity is complex, but the principles guiding its correction remain the same as in deformity of other spinal regions, with the goal of deformity correction that results in a solid fusion with adequate decompression of the neural elements. In these challenging cases, osteotomies are necessary to mobilize the rigid spine and to obtain the desired correction, but they can be associated with increased risk of complications. Therefore, careful preoperative planning and a complete understanding of the anatomic variations allow patient-tailored approaches with and case specific techniques for the optimal and safe treatment of a variety of complex cervical deformities...
July 2017: Journal of Craniovertebral Junction and Spine
https://www.readbyqxmd.com/read/28973349/single-level-proximal-thoracic-pedicle-subtraction-osteotomy-for-fixed-hyperkyphotic-deformity-surgical-technique-and-patient-series
#11
Ibrahim Obeid, Bassel G Diebo, Louis Boissiere, Anouar Bourghli, Derek T Cawley, Daniel Larrieu, Vincent Pointillart, Vincent Challier, Jean Marc Vital, Virginie Lafage
BACKGROUND: Thoracic hyperkyphosis can display pathological deterioration, resulting in either hyperlordotic cervical compensation or sagittal malalignment. Various techniques have been described to treat fixed malalignment. Pedicle subtraction osteotomy (PSO) is commonly used in the lumbar spine and frequently limited to the distal thoracic spine. This series focuses on the surgical specificities of proximal thoracic PSO, with clinical and radiological outcomes. OBJECTIVE: To report the surgical specificities and assess the clinical and radiological outcomes of proximal thoracic osteotomies for correction of rigid kyphotic deformities...
July 22, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28966814/biomechanical-study-of-rod-stress-after-pedicle-subtraction-osteotomy-versus-anterior-column-reconstruction-a-finite-element-study
#12
Jacob Januszewski, Joshua M Beckman, Jeffrey E Harris, Alexander W Turner, Chun Po Yen, Juan S Uribe
BACKGROUND: In an effort to minimize rod fractures and nonunion in pedicle subtraction osteotomy (PSO) constructs, surgeons have adopted multirod constructs and interbody cages. Anterior column realignment (ACR) with posterior column osteotomies is a minimally invasive alternative to PSO in sagittal balance correction, however, there is a paucity of evidence with respect to rod survival. METHODS: Three-dimensional (3D) finite-element-model of a T12-sacrum spine segment was used to compare a 25° PSO at L3 and an ACR with a posterior column osteotomy and 30° hyperlordotic interbody cage at L3-4...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28961805/two-stage-en-bloc-resection-of-multilevel-cervical-chordomas-with-vertebral-artery-preservation-operative-technique
#13
Xingwen Wang, Eldan Eichbaum, Fengzeng Jian, Dean Chou
BACKGROUND: En bloc excision of cervical chordoma is a technically complex procedure, due to the involvement and closeness of the tumor to the spinal cord, cervical nerve roots, and vertebral arteries. Studies have previously shown that en bloc excision of chordomas with negative margins improves local control and prolongs disease-free survival compared with intralesional excision. True en bloc spondylectomy in the cervical spine is not feasible since bilateral vertebral artery sacrifice is not possible...
August 9, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28944085/false-negative-transcranial-motor-evoked-potentials-tcmeps-during-surgery-for-congenital-lumbar-kyphoscoliosis-a-case-report
#14
Masayuki Ohashi, Kei Watanabe, Kenta Furutani, Toru Hirano, Keiichi Katsumi, Hirokazu Shoji, Tatsuki Mizouchi, Naoto Endo
INTRODUCTION: Transcranial motor evoked potential (TcMEP) monitoring is the gold standard for intra-operative neurological monitoring (IOM) of motor pathways during complex spine surgery because of its high sensitivity and specificity. However, although it is very low, the rate of false-negatives in TcMEP monitoring is not zero. Therefore, over-reliance on TcMEP monitoring can cause potentially preventable motor deficits. CASE PRESENTATION: We report a case of motor deficits due to nerve root stretch after surgical correction of a congenital lumbar kyphoscoliosis in a 56-year-old woman...
2017: Spinal Cord Series and Cases
https://www.readbyqxmd.com/read/28927210/navigation-and-image-injection-for-control-of-bone-removal-and-osteotomy-planes-in-spine-surgery
#15
Michael Kosterhon, Angelika Gutenberg, Sven Rainer Kantelhardt, Elefterios Archavlis, Alf Giese
BACKGROUND AND IMPORTANCE: In contrast to cranial interventions, neuronavigation in spinal surgery is used in few applications, not tapping into its full technological potential. We have developed a method to preoperatively create virtual resection planes and volumes for spinal osteotomies and export 3-D operation plans to a navigation system controlling intraoperative visualization using a surgical microscope's head-up display. The method was developed using a Sawbone ® model of the lumbar spine, demonstrating feasibility with high precision...
April 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28910701/biomechanical-analysis-of-lumbar-decompression-surgery-in-relation-to-degenerative-changes-in-the-lumbar-spine-validated-finite-element-analysis
#16
Quan You Li, Ho-Joong Kim, Juhyun Son, Kyoung-Tak Kang, Bong-Soon Chang, Choon-Ki Lee, Hyun Sik Seok, Jin S Yeom
BACKGROUND: There are no studies about the biomechanical analysis of lumbar decompression surgery in relation to degenerative changes of the lumbar spine. Therefore, the purpose of this study was to compare, by using finite element (FE) analysis, the biomechanical changes of the lumbar spine in terms of annulus stress and nucleus pressure after two different kinds of lumbar decompression surgery in relation to disc degenerative changes. METHODS: The validated intact and degenerated FE models (L2-5) were used in this study...
September 6, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28894684/a-preliminary-algorithm-using-spine-measurement-software-to-predict-sagittal-alignment-following-pedicle-subtraction-osteotomy
#17
Robert K Merrill, Jun S Kim, Dante M Leven, Joshua J Meaike, Joung Heon Kim, Samuel K Cho
STUDY DESIGN: Retrospective case series. OBJECTIVE: To evaluate if spine measurement software can simulate sagittal alignment following pedicle subtraction osteotomy (PSO). METHODS: We retrospectively reviewed consecutive adult spinal deformity patients who underwent lumbar PSO. Sagittal measurements were performed on preoperative lateral, standing radiographs. Sagittal measurements after simulated PSO were compared to actual postoperative measurements...
September 2017: Global Spine Journal
https://www.readbyqxmd.com/read/28885298/increasing-body-mass-index-is-associated-with-worse-perioperative-outcomes-and-higher-costs-in-adult-spinal-deformity-surgery
#18
Raj M Amin, Micheal Raad, Amit Jain, Kevin P Sandhu, Steven M Frank, Khaled M Kebaish
STUDY DESIGN: Retrospective review. OBJECTIVE: To investigate associations of obesity with outcomes and costs of adult spinal deformity (ASD) surgery. SUMMARY OF BACKGROUND DATA: Increasing body mass index is a risk factor for complications after nondeformity spine surgery, but its effect on ASD surgery is unknown. METHODS: We reviewed records of 244 ASD patients who underwent spinal arthrodesis of ≥5 levels from 2010-2014 and categorized them by World Health Organization body mass index (BMI) groups: < 30, nonobese (64%); 30-34...
September 6, 2017: Spine
https://www.readbyqxmd.com/read/28872530/modified-en-bloc-spondylectomy-for-tumors-of-the-thoracic-and-lumbar-spine-surgical-technique-and-outcomes
#19
Akash A Shah, Nuno R Paulino Pereira, Frank X Pedlow, John C Wain, Sam S Yoon, Francis J Hornicek, Joseph H Schwab
BACKGROUND: Total en bloc spondylectomy (TES) for the treatment of spinal tumors decreases local recurrence and improves survival compared with intralesional resection. TES approaches vary in both the number of stages to complete the procedure and instruments with which osteotomies are performed. METHODS: We describe a 2-stage technique that employs the use of threadwire saws. We performed a retrospective review of cases of primary tumors and solitary metastases involving the thoracic or lumbar spine treated with use of our modified technique at our institution between 2010 and 2016, identifying eligible patients by searching for specific phrases in operative reports found in our oncologic database...
September 6, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28855714/the-pterygomaxillary-junction-an-imaging-study-for-surgical-information-of-lefort-i-osteotomy
#20
Yen-Po Chin, Maria Belen Leno, Sarayuth Dumrongwongsiri, Kyung Hoon Chung, Hsiu-Hsia Lin, Lun-Jou Lo
Maxillary osteotomy is a common surgical procedure and often involves separation of the pterygomaxillary junction (PMJ), which is a "blinded" procedure with inherent risks. Knowledge of the PMJ structure is essential. It remains unclear whether patients with different facial types have different PMJ structures, or different surgical outcome. This study evaluated the computed tomographic images of 283 consecutive patients who received orthognathic surgery. Patients were classified into Angle class I, II, III and cleft lip/palate groups...
August 30, 2017: Scientific Reports
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