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C1-2 injuries

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https://www.readbyqxmd.com/read/28927914/c1-c2-pedicle-screw-fixation-for-atlantoaxial-dislocation-in-pediatric-patients-younger-than-5-years-a-case-series-of-15-patients
#1
Yue-Hui Zhang, Jiang Shao, Dean Chou, Jian-Feng Wu, Jia Song, Jing Zhang
OBJIECTIVE: C1-C2 pedicle screw fixation has become popular for providing excellent bony purchase and avoiding neurovascular complications. However, it may be technically challenging in children. The objective of this study is to investigate the safety and efficacy of C1-C2 pedicle screw fixation for atlantoaxial dislocation (AAD) in pediatric patients younger than 5 years, and to evaluate the preliminary clinical and radiographic results. METHODS: During a 7-year period, 15 patients with a mean age of 3...
September 16, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28927912/steinmann-pins-for-c1-lateral-mass-screw-placement-during-atlantoaxial-stabilization
#2
Joshua E Meyers, Kunal Vakharia, Joseph M Kowalski, Vassilios G Dimopoulos, John Pollina
OBJECTIVE: The authors describe a modified technique for placement of the C1 lateral mass screw using a Steinmann pin as a guide. This technique minimizes dissection and provides atlantoaxial stabilization during arthrodesis. METHODS: In our technique, a non-threaded 1.6mm spade-tip Steinmann pin is placed into the lateral mass of C1 to serve as a guide over which a powered drill is used for screw insertion. Perioperative data were collected for consecutive patients who underwent a C1-2 arthrodesis that involved the modified technique between March 2010 and July 2016...
September 16, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28912022/when-does-intraoperative-3d-imaging-play-a-role-in-transpedicular-c2-screw-placement
#3
Cornelius Jacobs, Philip P Roessler, Sebastian Scheidt, Milena M Plöger, Collin Jacobs, Alexander C Disch, Klaus D Schaser, Tony Hartwig
INTRODUCTION: The stabilization of an atlantoaxial (C1-C2) instability is demanding due to a complex atlantoaxial anatomy with proximity to the spinal cord, a variable run of the vertebral artery (VA) and narrow C2 pedicles. We perfomed the Goel & Harms fusion in combination with an intraoperative 3D imaging to ensure correct screw placement in the C2 pedicle. We hypothesized, that narrow C2 pedicles lead to a higher malposition rate of screws by perforation of the pedicle wall. The purpose of this study was to describe a certain pedicle size, under which the perforation rate rises...
September 8, 2017: Injury
https://www.readbyqxmd.com/read/28895574/generating-rasch-based-activity-of-daily-living-measures-from-the-spinal-cord-injury-longitudinal-aging-study
#4
C-Y Li, C A Velozo, I Hong, C Li, J C Newman, J S Krause
STUDY DESIGN: Retrospective Longitudinal Study. OBJECTIVES: (1) To determine whether the Spinal Cord Injury Activities of Daily Living (SCI_ADL) measure shows adequate item-level and precision psychometrics; (2) to investigate whether the SCI_ADL measure effectively detects ADL changes across time; (3) to describe self-care task(s) participants can and cannot do across time. SETTING: Two Midwestern hospitals and 1 Southeastern specialty hospital in 1993...
September 12, 2017: Spinal Cord
https://www.readbyqxmd.com/read/28885343/risk-factors-and-the-surgery-affection-of-respiratory-complication-and-its-mortality-after-acute-traumatic-cervical-spinal-cord-injury
#5
Xiao-Xiong Yang, Zong-Qiang Huang, Zhong-Hai Li, Dong-Feng Ren, Jia-Guang Tang
The aim of this study is to estimate the risk factors of both respiratory complication (RC) and mortality after acute traumatic cervical spinal cord injury (TCSCI). Between July 2005 and July 2015, in 181 patients (142 males and 39 females; mean age 41.0 years) with acute TCSCI, we compared the difference and odds ratio in RC group (n = 73) with that of non-RC group (n = 108), and also death group (n = 15) and survival group (n = 166). We collected injury-related information after half a year of injury, which is as follows: the causes of injury, time of surgery, ICU (intensive care unit) days, ventilator days, ASIA (American Spinal Injury Association) classification, neurological injury, CIPS (Clinical Pulmonary Infection Score), and BMI (body mass index)...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28842231/evaluation-of-correction-of-radiological-parameters-angulation-and-displacement-and-accuracy-of-c2-pedicle-screw-placement-in-unstable-hangman-s-fracture-with-intraoperative-ct-based-navigation
#6
Pankaj Kumar Singh
BACKGROUND: Opinions vary regarding optimal treatment of unstable hangman's fractures including rigid orthosis and internal fixation. The anatomy of upper cervical spine is complex. The advent of intraoperative 3-dimensional navigation systems facilitate safe and accurate instrumentation. OBJECTIVE: To evaluate radiological parameters of fracture morphology in unstable hangman's fracture in preoperative and post-operative period and accuracy of inserting axis pedicle screws by using intraoperative CT based navigation...
August 22, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28842229/intraoperative-navigation-is-associated-with-reduced-blood-loss-during-c1-2-posterior-cervical-fixation
#7
Frederick L Hitti, Eric D Hudgins, H Isaac Chen, Neil R Malhotra, Eric L Zager, James M Schuster
OBJECTIVE: Traumatic injuries, degenerative/rheumatologic conditions, tumors, or infections of the upper cervical spine may in certain circumstances require surgical stabilization. C1 lateral mass screws (Harms technique) in combination with C2 instrumentation (pars, pedicle, translaminar screws) have become a mainstay of surgical treatment. The surgical anatomy of the C1 lateral mass can be challenging especially with the robust venous plexus that often causes significant bleeding with exposure of the C1-C2 articular complex...
August 22, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28816879/atlas-fractures-and-atlas-osteosynthesis-a-comprehensive-narrative-review
#8
Frank Kandziora, Jens R Chapman, Alexander R Vaccaro, Gregory D Schroeder, Matti Scholz
Most atlas fractures are the result of compression forces. They are often combined with fractures of the axis and especially with the odontoid process. Multiple classification systems for atlas fractures have been described. For an adequate diagnosis, a computed tomography is mandatory. To distinguish between stable and unstable atlas injury, it is necessary to evaluate the integrity of the transverse atlantal ligament (TAL) by magnetic resonance imaging and to classify the TAL lesion. Studies comparing conservative and operative management of unstable atlas fractures are unfortunately not available in the literature; neither are studies comparing different operative treatment strategies...
September 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28803621/blunt-cervical-spine-injury-in-adult-polytrauma-incidence-injury-patterns-and-predictors-of-significant-ligament-injury-on-ct
#9
G Chilvers, U Janjua, S Choudhary
AIM: To describe the pattern of cervical spine fractures in adult major trauma and identify computed tomography (CT) parameters that can predict significant ligament injury when fractures are absent; to define the normal range for parameters used; and identify common variations due to position of cervical immobilisation in a trauma patient. MATERIALS AND METHODS: In this retrospective study all polytrauma patients imaged using multidetector CT over a period of 5 years were identified...
August 10, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28762133/origins-and-neurochemical-characteristics-of-porcine-intervertebral-disc-sympathetic-innervation-a-preliminary-report
#10
Monika Barczewska, Judyta Juranek, Joanna Wojtkiewicz
Intervertebral disc diseases (IVDDs) form a group of a vertebral column disorders affecting a large number of people worldwide. It is estimated that approximately 30% of individuals at the age of 35 and approximately 90% of individuals at the age of 60 and above will have some form of disc-affecting pathological changes leading to disc herniation, prolapse and degeneration as well as discogenic pain. Here, we aimed to establish the origins and neurochemical characteristics of porcine intervertebral disc sympathetic innervation involved in pain signalling in IVDD patients...
July 31, 2017: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/28739475/posterior-osteosynthesis-with-monoaxial-lateral-mass-screw-rod-system-for-unstable-c1-burst-fractures
#11
Yin-Shun Zhang, Jian-Xiang Zhang, Qing-Guo Yang, Wei Li, Hui Tao, Cai-Liang Shen
BACKGROUND CONTEXT: Surgical treatment for unstable atlas fractures has evolved in recent decades from C1-C2 or C0-C2 fusion to motion-preservation techniques of open reduction and internal fixation (ORIF). However, regardless of transoral or posterior approach, the reduction is still not satisfactory. PURPOSE: The article describes and evaluates a new technique for treating the unstable atlas fractures by using a monoaxial screw-rod system. STUDY DESIGN: This is a retrospective study PATIENT SAMPLE: The sample includes adult patients with unstable C1 fractures treated with a posterior monoaxial screw-rod system...
July 21, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28735116/surgical-technique-of-percutaneous-iliosacral-screw-fixation-in-s3-level-in-unstable-pelvic-fracture-with-closed-degloving-injury-and-morrell-lavallee-lesion-two-case-reports
#12
Ismail H Dilogo, Jessica Fiolin
INTRODUCTION: Percutaneous screw fixation is considered the best option in unstable pelvic fracture with severe soft tissue injury. However, fixation technique at the level of S3 has not been well established. This paper showed the feasible surgical technique of S3 screw insertion in unstable pelvic fracture with severe soft tissue injury. METHODS: We reported 2 cases of unstable pelvic injury of an 11 years old boy with Marvin-Tile (MT) C1 pelvic fracture with sacroiliac (SI) joint disruption, skin avulsion and Morel-Lavallée lesion...
2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28733720/low-energy-chronic-traumatic-spondylolisthesis-of-the-axis
#13
Conor J Dunn, Samuel Mease, Kimona Issa, Kumar Sinha, Arash Emami
OBJECTIVE: The aim of this study is to present a unique case of a patient who presented to our Emergency Department with evidence of a chronic traumatic spondylolisthesis of the axis with severe displacement treated with anterior cervical discectomy and fusion (ACDF) of C2-C3 as well as and posterior cervical fusion (PCF) of C1-C3. METHODS: One patient with an untreated traumatic spondylolisthesis of the axis with Levine type II injury pattern and 1.2 cm of anterior subluxation underwent ACDF C2-C3 and PCF C1-C3...
July 21, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28724333/the-impact-of-acute-management-on-the-occurrence-of-medical-complications-during-the-specialized-spinal-cord-injury-acute-hospitalization-following-motor-complete-cervical-spinal-cord-injury
#14
Andréane Richard-Denis, Debbie Erhmann Feldman, Cynthia Thompson, Jean-Marc Mac-Thiong
CONTEXT/OBJECTIVE: Determine the impact of early admission and complete perioperative management in a specialized spinal cord injury (SCI) trauma center (SCI-center) on the occurrence of medical complications following tetraplegia. DESIGN: A retrospective comparative cohort study of prospectively collected data involving 116 individuals was conducted. Group 1 (N=87) was early managed in a SCI-center promptly after the trauma, whereas Group 2 (N=29) was surgically and preoperatively managed in a non-specialized (NS) center before being transferred to the SCI-center...
July 19, 2017: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/28708955/nonweightbearing-radiographs-in-patients-with-a-subtle-lisfranc-injury
#15
Dong-Kyo Seo, Ho-Seong Lee, Ki Won Lee, Suk Kyu Lee, Sang-Bum Kim
BACKGROUND: A midfoot sprain can be easily missed because of minimal findings on initial radiographs, which are almost universally nonweightbearing. We investigated preoperative nonweightbearing plain radiographic images in patients who were found to have unstable subtle Lisfranc injuries. METHODS: We retrospectively reviewed 51 patients who were operated on between February 2004 and March 2015. Abnormal preoperative radiographic findings and intraoperative instability were compared...
July 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28708778/radiographic-investigation-of-the-distal-extension-of-fractures-into-the-articular-surface-of-the-tibia-the-ridefast-study
#16
Lucas S Marchand, Ajinkya A Rane, Zachary M Working, Lance G Jacobson, Erik N Kubiak, Thomas F Higgins, David L Rothberg
OBJECTIVE: To determine whether radiographic measurements are predictive of involvement of the distal tibia articular surface in tibial shaft fractures. DESIGN: Retrospective review. SETTING: Academic level-I trauma hospital. PATIENTS: Two-hundred seventeen patients with tibial shaft fractures distal to the isthmus (AO/OTA: 42-A1-3;42-B1-3;42-C1-3;43-A1-3). INTERVENTION: Analysis of AP and lateral radiographs...
June 22, 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28684454/diagnostic-utility-of-increased-stir-signal-in-the-posterior-atlanto-occipital-and-atlantoaxial-membrane-complex-on-mri-in-acute-c1-c2-fracture
#17
Y-M Chang, G Kim, N Peri, E Papavassiliou, R Rojas, R A Bhadelia
BACKGROUND AND PURPOSE: Acute C1-C2 fractures are difficult to detect on MR imaging due to a paucity of associated bone marrow edema. The purpose of this study was to determine the diagnostic utility of increased STIR signal in the posterior atlanto-occipital and atlantoaxial membrane complex (PAOAAM) in the detection of acute C1-C2 fractures on MR imaging. MATERIALS AND METHODS: Eighty-seven patients with C1-C2 fractures, 87 with no fractures, and 87 with other cervical fractures with acute injury who had both CT and MR imaging within 24 hours were included...
September 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28678026/transoral-closed-reduction-of-fixed-atlanto-axial-rotatory-subluxation-aars-in-childhood-and-adolescence
#18
Dezsoe Jeszenszky, Tamas Fekete, Frank Kleinstück, Daniel Haschtmann, Markus Loibl
Atlanto-axial rotatory-subluxation (AARS) is the most common pediatric cervical spine injury. Patients usually present with contralateral rotation and inclination of the upper cervical spine after minor trauma, or associated with an infection of the upper respiratory tract. According to the authors, initial management of patients with acute and chronic AARS type I-II should comprise closed reduction and immobilization with a cervical collar or a Halo-Body-Jacket. Surgical options of open reduction or C1/2 fusion should be restricted to irreducible or recurrent subluxations...
July 3, 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28641140/effect-of-c1-inh-on-ischemia-reperfusion-injury-in-a-porcine-limb-ex-vivo-perfusion-model
#19
Mai M Abdelhafez, Jane Shaw, Damian Sutter, Jonas Schnider, Yara Banz, Hansjörg Jenni, Esther Voegelin, Mihai A Constantinescu, Robert Rieben
Revascularization of an amputated limb within 4-6h is essential to avoid extensive ischemia/reperfusion (I/R) injury leading to vascular leakage, edema and tissue necrosis. I/R injury is a pathological inflammatory condition that occurs during reperfusion of an organ or tissue after prolonged ischemia. It is characterized by a complex crosstalk between endothelial cell activation and the activation of plasma cascades. Vasculoprotective pharmacological intervention to prevent I/R injury might be an option to prolong the time window between limb amputation and successful replantation...
June 19, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28628156/-atlantoaxial-reduction-and-fixation-guided-by-the-intraoperative-ct
#20
(no author information available yet)
OBJECTIVE: To evaluate the clinical result of atlantoaxial reduction and fixation guided by the intraoperative CT. METHODS: Sixteen cases were retrospectively studied, including seven males and nine females, with the mean age of 49.9 years. Twelve cases were diagnosed as chronic atlantoaxial instability or dislocation, while four cases as acute odontoid fracture and dislocation. Among the sixteen cases, fourteen underwent atlantoaxial fusion, while two underwent temporary atlantoaxial fixation without fusion...
June 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
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