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C1-2 injuries

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https://www.readbyqxmd.com/read/29327558/-modified-osteotomy-of-olecranon-for-the-management-of-inter-condylar-fracture-of-the-humerus
#1
Zheng-Feng Mei, Wen-Tao Lei, Dong-Hui Huang, Qi-Hui Zhao, Hang-Bo Qu, Lian-Zhi Ni
OBJECTIVE: To explore the surgical method and clinical outcome of modified osteotomy of olecranon for the treatment of inter-condylar fracture of humerus. METHODS: From May 2007 to December 2012, 32 patients of intercondylar fracture of humerus were treated surgically through the approach of modified osteotomy of olecranon. The patients were 21 males and 11 females with a mean age of 46.3 years (ranged 18 to 65 years). Nineteen fractures occurred on the right extremity and 13 on the left extremity...
January 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29318090/c1-2-fixation-approach-for-patients-with-vascular-irregularities-a-case-report
#2
Alireza K Nazemi, Stetson R Bickley, Caleb J Behrend, Jonathan J Carmouche
In posterior spinal fusion (PSF), the vertebral artery is most vulnerable to injury at C1-2. C2 pedicle screws are often placed into the dorsomedial isthmus of C2. Alternative techniques include C2 laminar screws and wiring techniques. A 67-year-old male underwent PSF for persistent severe intractable neck pain and degeneration at C1-2. The patient had an enlarged left vertebral artery with midline migration into the C2 body. This pattern was within one standard deviation of normal; however, it rendered typical placement of a C2 pedicle screw unsafe...
December 2017: Geriatric Orthopaedic Surgery & Rehabilitation
https://www.readbyqxmd.com/read/29310380/traumatic-c1-2-posterolateral-dislocation-with-dens-fracture-injury-of-the-transverse-atlantal-ligament-and-unilateral-facet-fracture-with-subluxation-of-c6-7-a-case-report
#3
Jong-Beom Park, Sung Shik Kang, Jin S Yeom
RATIONALE: Traumatic C1-2 dislocation associated with contiguous or noncontiguous cervical spine injury is rare. Moreover, there have been no reports describing traumatic C1-2 dislocation associated with multiple contiguous and noncontiguous cervical injuries. PATIENT CONCERNS: The authors present a case of a 20-year-old male with painful limitation of motion of the neck. This complex cervical injury occurred due to hyperextension of the head in a rotated position...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29288330/evaluation-of-vertebral-artery-anomaly-in-basilar-invagination-and-prevention-of-vascular-injury-during-surgical-intervention-cta-features-and-analysis
#4
Shuaishuai Xu, Shidong Ruan, Xiaoyu Song, Jinyu Yu, Jianrong Xu, Ruozhen Gong
OBJECTIVE: To evaluate vertebral artery anomaly at the craniovertebral junction (CVJ) in patients with basilar invagination (BI) by computed tomographic angiography (CTA), and to discuss the prevention strategy of vascular injury. METHODS: The primary axial, multiple planar reconstruction and volume-rendering cervicocranial CTA images of 39 BI patients were analysed to evaluate vertebral artery anomaly at the CVJ: persistent first intersegmental artery (PFIA), fenestrated vertebral artery (FEN), and extracranial C1/2 origin of posterior inferior cerebellar artery (PICA), high-riding vertebral artery, side-to-side asymmetry and irregular midline carotid artery loop was determined by subjective vision...
December 29, 2017: European Spine Journal
https://www.readbyqxmd.com/read/29238871/minimally-invasive-stabilisation-of-posterior-pelvic-ring-instabilities-with-pedicle-screws-connected-to-a-transverse-rod
#5
Hu Wang, Ya-Hui Fu, Chao Ke, Yan Zhuang, Kun Zhang, Xing Wei, Zhong Li, Jin-Lai Lei, Bin-Fei Zhang, Ping Liu
PURPOSE: The goal was to evaluate the clinical outcomes, quality of reduction and complications of pelvic fractures treated by minimally invasive stabilisation of posterior pelvic ring instabilities with pedicle screws connected to a transverse rod. METHODS: Retrospective analysis of prospectively collected data in a consecutive patient series with pelvic fractures treated by minimally invasive stabilisation of posterior pelvic ring instabilities with pedicle screws between January 2010 and January 2016...
December 14, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/29227370/c1-c2-pedicle-screw-fixation-for-pediatric-atlantoaxial-dislocation-initial-results-and-long-term-follow-up
#6
Zhi-Da Chen, Jin Wu, Cheng-Wu Lu, Wen-Rong Zeng, Zhuan-Zhi Huang, Bin Lin
BACKGROUND: There are few studies reporting the use of atlantoaxial pedicle screws and the long-term effects of C1-C2 posterior fusion in children. Our study is to investigate the initial results of C1-C2 pedicle screw fixation for pediatric atlantoaxial dislocation (AAD) and assessed spontaneous change of postoperative radiography after a long-term follow-up period. METHODS: Posterior pedicle screw fixations were performed in 21 pediatric patients with AAD. All the patients underwent implant removal 1 year after their initial surgery and had regular follow-up with an average duration of 76...
December 8, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/29174476/brown-sequard-syndrome-caused-by-hyperextension-in-a-patient-with-atlantoaxial-subluxation-due-to-an-os-odontoideum
#7
Dong-Yeong Lee, Soon-Taek Jeong, Tae-Ho Lee, Dong-Hee Kim
Brown-Sequard syndrome is an uncommon complication of atlantoaxial arthrodesis. A 50-year-old female visited our emergency department after falling from a ladder. Radiologic evaluations revealed chronic C1-2 instability with acute spinal cord injury. The day after atlantoaxial fusion was performed, she developed left-sided motor weakness and the loss of right-sided pain and temperature sensation. Based on physical examination and radiologic findings, we diagnosed her as having Brown-Sequard syndrome. Spine surgeons performing this procedure should therefore consider Brown-Sequard syndrome if a patient displays signs of postoperative hemiplegia...
November 23, 2017: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/29146435/epidemiology-and-management-of-spinal-trauma-in-children-and-adolescents-under-18-years-old
#8
Asdrubal Falavigna, Orlando Righesso, Pedro Guarise da Silva, Felix Adolfo Sanchez Chavez, Ericson Sfreddo, Leandro Pelegrini de Almeida, Manuel Jose Valencia Carrasco, Andrei Fernandes Joaquim
STUDY DESIGN: Retrospective study. OBJECTIVE: Report the epidemiology, clinical aspects and management of spinal trauma in children and adolescents. METHODS: Multicenter study of 215 cases of spinal trauma in individuals younger than 18 years of age. All patients were submitted to preoperative and postoperative radiological and clinical evaluation. The fractures were classified according to the AOSpine fracture classification. Neurological evaluation was performed using the Frankel Scale at admission to hospital and at the last follow-up...
November 13, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29095313/treatment-of-type-ii-odontoid-fracture-with-a-novel-technique-titanium-cable-dragged-reduction-and-cantilever-beam-internal-fixation
#9
Ce Zhu, Lei Wang, Hao Liu, Yueming Song, Limin Liu, Tao Li, Quan Gong
Surgical methods for type II odontoid fracture can be classified into 2 main groups: anterior or posterior approach. A more effective way to achieve bone fusion with the lowest possible surgical risk is needed. Therefore, the aim of our study was to describe and evaluate a novel technique, cable-dragged reduction/cantilever beam internal fixation for the treatment of type II odontoid fracture.This was a retrospective study enrolled 34 patients underwent posterior cable-dragged reduction/cantilever-beam internal fixation surgery...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29084406/a-retrospective-study-of-cervical-spine-mri-findings-in-children-with-abusive-head-trauma
#10
Lance S Governale, Farah W Brink, Charles P Pluto, Victoria A Schunemann, Rachel Weber, Jerome Rusin, Beth A Fischer, Megan M Letson
BACKGROUND/AIMS: Increasing attention has been given to the possible association of cervical spine (c-spine) injuries with abusive head trauma (AHT). The aims of this study were to describe c-spine MRI findings in hospitalized AHT patients. METHODS: This is a retrospective study of children under the age of 5 years with AHT admitted to hospital in 2004-2013. Those with c-spine MRI were identified, and the images were reviewed. RESULTS: 250 AHT cases were identified, with 34 (14%) undergoing c-spine MRI...
October 31, 2017: Pediatric Neurosurgery
https://www.readbyqxmd.com/read/29081151/-effects-of-preconditioning-with-hypertonic-saline-solution-on-postoperative-delirium-in-the-aged
#11
X Xin, S P Huo, Q Zhang, Y N Li, L Wang, Q J Wang
Objective: To evaluate and explore the mechanism of the effect of hypertonic pre-injection on postoperative delirium in the aged. Methods: From June 2016 to February 2017, participants scheduled hip arthroplasty surgery were randomly divided into four groups: Group 1 (H1) 30 patients pre-injected 4 ml/kg hypertonic solution were proceeded general anesthesia; Group 2 (H2) 30 patients pre-injected 4 ml/kg hypertonic solution were proceeded spinal canal anesthesia; Group 3 (C1) 30 patients pre-injected 4 ml/kg isotonic saline were proceeded general anesthesia; Group 4 (C2) 30 patients pre-injected 4 ml/kg isotonic saline were proceeded spinal canal anesthesia in Department of Anesthesiology, Third Hospital of Hebei Medical University...
October 24, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29017980/predisposing-factors-of-fracture-nonunion-after-posterior-c1-lateral-mass-screws-combined-with-c2-pedicle-laminar-screw-fixation-for-type-ii-odontoid-fracture
#12
Hui Wang, Qian Wang, Lei Ma, Dalong Yang, Wenyuan Ding
INTRODUCTION: The aim of this study was to explore the predisposing factors for fracture nonunion after a lateral screw was combined with C2 pedicle/laminar screw for a type II odontoid fracture and hopefully provide references in decision making and surgical planning for spinal surgeons. METHODS: This is a retrospective study. By retrieving the medical records from January 2010 to July 2015 in our hospital, 117 type II odontoid fracture patients were reviewed. According to the occurrence of fracture union at the final follow-up, patients were divided into 2 groups: union and nonunion...
October 7, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28986644/traumatic-occipito-cervical-dissociation-in-adults-a-middle-eastern-cohort-study
#13
K Venugopal Menon, Ismail Al Habsi, Khalifa Al Ghafri
The objective of this study is to describe a series of cranio-cervical dissociation victims and evaluate their outcomes as well as discuss the clinical dilemmas we faced in the context of current literature evidence. This is a retrospective cohort study of traumatic occipito-cervical dissociation in five patients (three males and two females) encountered between 2010 and 2016 at a tertiary care facility in the Middle East region. All patients underwent occipito-cervical fusion using screws and rods system with mean postoperative follow-up period of 2...
October 6, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28982049/a-limited-series-of-synthetic-tetrahydroisoquinoline-alkaloids-reduce-inflammatory-gene-inos-via-inhibition-of-p-stat-1-and-suppress-hmgb1-secretion-in-lps-treated-mice-lung-tissue
#14
Young Shin Ko, Eun Jung Park, Young Min Kim, Hye Jung Kim, HyeSook Yun-Choi, Duck Hyung Lee, Ki Churl Chang
Tetrahydroisoquinoline alkaloids (THIs) have shown to increase survival and beneficial effect on animal model of sepsis, partly due to heme oxygenase-1 (HO-1) induction. Here, we aimed to compare a limited series of synthesized THIs on HO-1 induction and inhibitory effect of iNOS and COX-2 expression in lipopolysaccharide (LPS)-activated RAW264.7 cells. To the end, most promising compound (THI-61) was tested whether this compound reduces iNOS protein expression and inflammatory markers (HMGB1, TNF-α) in LPS-treated mice lung tissue...
October 2, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28962628/percutaneous-anterior-c1-2-transarticular-screw-fixation-salvage-of-failed-percutaneous-odontoid-screw-fixation-for-odontoid-fracture
#15
Ai-Min Wu, Hai-Ming Jin, Zhong-Ke Lin, Yong-Long Chi, Xiang-Yang Wang
BACKGROUND: The objective of this study is to investigate the outcomes and safety of using percutaneous anterior C1/2 transarticular screw fixation as a salvage technique for odontoid fracture if percutaneous odontoid screw fixation fails. METHODS: Fifteen in 108 odontoid fracture patients (planned to be treated by percutaneous anterior odontoid screw fixation) were failed to introduce satisfactory odontoid screw trajectory. To salvage this problem, we chose the percutaneous anterior C1/2 transarticular screw fixation technique in treatment of these patients...
September 29, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28962019/atlantoaxial-fusion-using-c1-sublaminar-cables-and-c2-translaminar-screws
#16
Alexandra M Giantini Larsen, Benjamin L Grannan, Robert M Koffie, Jean-Valéry Coumans
BACKGROUND: Atlantoaxial instability, which can arise in the setting of trauma, degenerative diseases, and neoplasm, is often managed surgically with C1-C2 arthrodesis. Classical C1-C2 fusion techniques require placement of instrumentation in close proximity to the vertebral artery and C2 nerve root. OBJECTIVE: To report a novel C1-C2 fusion technique that utilizes C2 translaminar screws and C1 sublaminar cables to decrease the risk of injury to the vertebral artery and C2 nerve root...
August 10, 2017: Operative Neurosurgery (Hagerstown, Md.)
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
#17
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
#18
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
#19
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
#20
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
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