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https://www.readbyqxmd.com/read/28803621/blunt-cervical-spine-injury-in-adult-polytrauma-incidence-injury-patterns-and-predictors-of-significant-ligament-injury-on-ct
#1
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/28738168/role-of-age-and-injury-mechanism-in-cervical-spine-injury-tolerance-under-head-contact-loading
#2
Narayan Yoganandan, Sajal Chirvi, Liming Voo, Frank A Pintar, Anjishnu Banerjee
OBJECTIVE: To determine the influence of age on cervical spine tolerance to injury from head contact loading using survival analysis. METHODS: This study analyzed data from previously conducted experiments using Post Mortem Human Subject specimens (PMHS). Group A tests used the upright intact head-cervical column experimental model. The inferior end of the specimen was fixed, head was balanced by a mechanical system, and natural lordosis was removed. Specimens were placed on a testing device via a load cell...
July 24, 2017: Traffic Injury Prevention
https://www.readbyqxmd.com/read/28728587/minimally-invasive-unilateral-pedicle-screws-and-a-translaminar-facet-screw-fixation-and-interbody-fusion-for-treatment-of-single-segment-lower-lumbar-vertebral-disease-surgical-technique-and-preliminary-clinical-results
#3
Peng Huang, Yiguo Wang, Jiao Xu, Bo Xiao, Jianheng Liu, Luyang Che, Keya Mao
BACKGROUND: Conventional open transforaminal lumbar interbody fusion (TLIF) using unilateral pedicle screws and a translaminar facet screw has been performed for many years with good results. The outcomes of minimally invasive TLIF (MIS TLIF) are similar to the good outcomes of open TLIF, with the additional benefits of reducing iatrogenic injury, shortening hospital stays, and reducing the recovery duration. Instead of using small cuts on both sides, we performed MIS TLIF through a single cut using unilateral pedicle screws and a translaminar facet screw...
July 20, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28728206/-subaxial-cervical-spine-injuries-treatment-recommendations-of-the-german-orthopedic-and-trauma-society
#4
Philipp Schleicher, Matti Scholz, Frank Kandziora, Andreas Badke, Florian Hans Brakopp, Helmut Klaus Friedrich Ekkerlein, Erol Gercek, Rene Hartensuer, Philipp Hartung, Jan-Sven Gilbert Jarvers, Philipp Kobbe, Stefan Matschke, Robert Morrison, Christian W Müller, Miguel Pishnamaz, Maximilian Reinhold, Klaus John Schnake, Gregor Schmeiser, Gregor Stein, Bernhard Ullrich, Thomas Weiß, Volker Zimmermann
In a consensus process during four sessions in 2016, the working group "lower cervical spine" of the German Society for Orthopedic and Trauma Surgery (DGOU), formulated "Therapeutic Recommendations for the Lower Cervical Spine", taking into consideration the current literature. Therapeutic goals are a permanently stable, painless cervical spine and the protection against secondary neurologic damage while retaining the greatest possible amount of motion and spinal profile. Due to its ease of use and its proven good reliability, the AOSpine classification for subaxial cervical injuries should be used...
July 20, 2017: Zeitschrift Für Orthopädie und Unfallchirurgie
https://www.readbyqxmd.com/read/28684193/treatment-with-neridronate-in-children-and-adolescents-with-osteogenesis-imperfecta-data-from-open-label-not-controlled-three-year-italian-study
#5
L Idolazzi, A Fassio, O Viapiana, M Rossini, G Adami, F Bertoldo, F Antoniazzi, D Gatti
INTRODUCTION: The present study assessed the long-term efficacy and safety of intravenous (i.v.) neridronate in children and adolescents affected by osteogenesis imperfecta (OI). METHODS: 55 young patients (mean age 12.6±3.9years) affected by OI were included in the study. Neridronate was administered by i.v. infusion at a dose of 2mg/kg (maximum dose of 100mg) at intervals of three-months for three years. Dual X-ray absorptiometry of the lumbar spine, hip and ultradistal and proximal radius were evaluated every 6months...
July 3, 2017: Bone
https://www.readbyqxmd.com/read/28673824/incorporating-ligament-laxity-in-a-finite-element-model-for-the-upper-cervical-spine
#6
Timothy L Lasswell, Duane S Cronin, John B Medley, Parham Rasoulinejad
BACKGROUND CONTEXT: Predicting physiological range of motion (ROM) using a finite element (FE) model of the upper cervical spine requires the incorporation of ligament laxity. The effect of ligament laxity can only be observed on a macro level of joint motion and is lost once ligaments have been dissected and preconditioned for experimental testing. As a result, although ligament laxity values are recognized to exist, specific values are not directly available in the literature for use in FE models...
June 30, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28658125/anterior-cervical-distraction-and-screw-elevating-pulling-reduction-for-traumatic-cervical-spine-fractures-and-dislocations-a-retrospective-analysis-of-86-cases
#7
Haoxi Li, Zhiyao Yong, Zhaoxiong Chen, Yufeng Huang, Zhoudan Lin, Desheng Wu
Treatment of cervical fracture and dislocation by improving the anterior cervical technique.Anterior cervical approach has been extensively used in treating cervical spine fractures and dislocations. However, when this approach is used in the treatment of locked facet joints, an unsatisfactory intraoperative reduction and prying reduction increases the risk of secondary spinal cord injury. Thus, herein, the cervical anterior approach was improved. With distractor and screw elevation therapy during surgery, the restoration rate is increased, and secondary injury to the spinal cord is avoided...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28647803/chronic-joint-pain-and-handgrip-strength-correlates-with-osteoporosis-in-mid-life-women-a-singaporean-cohort
#8
S Logan, W P P Thu, W K Lay, L Y Wang, J A Cauley, E L Yong
This study aimed to identify novel correlates which may relate to low bone mass at lumbar spine in mid-life Asian women. The possibility of developing a prediction model for osteoporosis (OP) was explored which resulted in a risk assessment tool that performed better than currently available tools. INTRODUCTION: In order to identify novel correlates associated with low spinal bone mineral density (BMD) in mid-life women, we examined a large number of lifestyle and medical and performance measurements and developed a prediction model for triage to BMD scanning...
June 24, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28631069/-s2-ala-iliac-screws-for-extended-pelvic-fixation-in-longer-lumbar-instrumentations-description-of-a-freehand-technique
#9
REVIEW
F Lattig, S Weckbach
OBJECTIVE: To reduce the rate of implant failures at the lumbosacral junction in polysegmental lumbar fusions. INDICATIONS: Spinal fusion with deformity correction including L5/S1, revision surgery for pseudoarthrosis L5/S1, screw pull-out and pedicle fractures in S1, and S1/S2 fractures after polysegmental fusions. CONTRAINDICATIONS: Osteosynthesis of complex pelvic ring fractures, tumors of the ilium. Relative contraindication: infection, to avoid contamination of the iliosacral joint...
August 2017: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/28622186/a-90-day-bundled-payment-for-primary-single-level-lumbar-discectomy-decompression-what-does-big-data-say
#10
Nikhil Jain, Sohrab S Virk, Frank M Phillips, Elizabeth Yu, Safdar N Khan
Episode-based bundling may become the major form of reimbursement for many elective spine procedures. As the amount for a 90-day episode of care is not known for a lumbar discectomy, we analyzed the previous reimbursements from Commercial payers (2007-Q2 2015), Medicare Advantage (2007-Q2 2015), and Medicare (2005-2012) for a primary single-level lumbar discectomy/decompression. Distribution of payments among various service providers was studied and a 90-day bundle was simulated. Depending on the payer type, the average facility costs constituted 59...
June 15, 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28619021/treatment-of-thoracolumbar-burst-fractures-by-short-segment-pedicle-screw-fixation-using-a-combination-of-two-additional-pedicle-screws-and-vertebroplasty-at-the-level-of-the-fracture-a-finite-element-analysis
#11
Jen-Chung Liao, Weng-Pin Chen, Hao Wang
BACKGROUND: Traditional one-above and one-below four-screw posterior short-segment instrumentation is used for unstable thoracolumbar burst fractures. However, this method has a high rate of implant failure and early loss of reduction. The purpose of this study was to use finite element (FE) analysis to determine the effect of treating thoracolumbar burst fractures by short-segment pedicle screw fixation using a combination of two additional pedicle screws and vertebroplasty at the level of the fracture...
June 15, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28618337/biomechanical-study-of-different-fixation-techniques-for-the-treatment-of-sacroiliac-joint-injuries-using-finite-element-analyses-and-biomechanical-tests
#12
Chian-Her Lee, Ching-Chi Hsu, Po-Yuang Huang
The pelvis is one of the most stressed areas of the human musculoskeletal system due to the transfer of truncal loads to the lower extremities. Sacroiliac joint injury may lead to abnormal joint mechanics and an unstable pelvis. Various fixation techniques have been evaluated and discussed. However, it may be difficult to investigate each technique due to variations in bone quality, bone anatomy, fracture pattern, and fixation location. Additionally, the finite element method is one useful technology that avoids these variations...
August 1, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28607823/traumatic-spondyloptosis-of-the-cervical-spine-a-case-report-and-discussion-of-worldwide-treatment-trends
#13
Kelly E Wong, Peter S Chang, Mark S Monasky, Rodney M Samuelson
BACKGROUND: Cervical spondyloptosis is defined as the dislocation of the spinal column most often caused by trauma. Due to compression or transection of the spinal cord, severe neurological deficits are common. Here, we review the literature and report a case of traumatic C5-6 spondyloptosis that was successfully treated using an anterior-only surgical approach. METHODS: The patient presented with quadriplegia and absent sensation distal to the C5 dermatome following a rollover motor vehicle accident...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28537411/-treatment-of-pelvic-avulsion-fractures-in-children-and-adolescents
#14
A Stančák, J Kautzner, T Trč, V Havlas
INTRODUCTION: Paediatric avulsion fractures of the pelvis and hip joint are rare injuries most commonly associated with a rapid muscle contraction of the respected apophysis, which is the weakest component of the growing skeleton. The chosen therapy option can be either conservative or surgical. METHODS: We present a cohort of 69 patients treated for an apophyseal avulsion fracture of the anterior superior / inferior iliac spine, the lesser and greater trochanters iliac crest and the ischial tubercle...
2017: Rozhledy V Chirurgii: Měsíčník Československé Chirurgické Společnosti
https://www.readbyqxmd.com/read/28521343/tarlov-cyst-causing-sacral-insufficiency-fracture
#15
Ross C Puffer, Marcus J Gates, William Copeland, William E Krauss, Jeremy Fogelson
BACKGROUND AND IMPORTANCE: Tarlov cysts, also known as perineural cysts, have been described as meningeal dilations of the spinal nerve root sheath between the peri- and endoneurium at the dorsal root ganglion. Most often they are found in the sacrum involving the nerve roots. Normally asymptomatic, they have been reported to present with radiculopathy, paresthesias, and even urinary or bowel dysfunction. Sacral insufficiency has not been a well-documented presentation. CLINICAL PRESENTATION: The patient is a 38-year-old female who started to develop left low back pain and buttock pain that rapidly progressed into severe pain with some radiation down the posterior aspect of her left leg...
June 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28520623/the-sub-crestal-iliac-screw-a-technical-note-describing-a-free-hand-in-line-low-profile-iliac-screw-insertion-technique-to-avoid-side-connector-use-and-reduce-implant-complications
#16
Gabriel Liu, Muhammed Yaser Hasan, Hee-Kit Wong
STUDY-DESIGN: Case-series. OBJECTIVE: Report our modified iliac-screw insertion technique and its clinical outcomes. SUMMARY OF BACKGROUND DATA: Iliac-screws are one of the preferred methods for modern spinopelvic-fixation. However the technique is not without complications, predominantly due to iliac-screw head prominence, leading to pain and revisions. Conventional iliac-screw entry point is sited superficially at the posterior-superior-iliac-spine (PSIS) contributing to screw-head prominence...
May 17, 2017: Spine
https://www.readbyqxmd.com/read/28473948/purely-ligamentous-flexion-distraction-injury-in-a-five-year-old-child-treated-with-surgical-management
#17
Ryan M Schiedo, William Lavelle, Nathaniel R Ordway, Tarush Rustagi, Mike H Sun
Chance fractures by definition are a type of flexion-distraction injury with concomitant vertebral body fracture. Although uncommon in the pediatric population, they are associated with motor vehicle accidents and typically involve the thoraco-lumbar spine. Injury occurs when the spine rotates about a fixed axis, such as a lap belt. Our case reports the management of a five-year-old girl involved in a head-on collision who suffered a purely ligamentous flexion-distraction injury (Chance-type injury, without bone involvement) at the L2-L3 vertebral level...
April 3, 2017: Curēus
https://www.readbyqxmd.com/read/28454529/association-of-vertebral-compression-fractures-with-physical-performance-measures-among-community-dwelling-japanese-women-aged-40%C3%A2-years-and-older
#18
Kazuhiko Arima, Yasuyo Abe, Takayuki Nishimura, Takuhiro Okabe, Yoshihito Tomita, Satoshi Mizukami, Mitsuo Kanagae, Kiyoshi Aoyagi
BACKGROUND: Numerous reported studies have shown that vertebral compression fractures are associated with impaired function or disability; however, few examined their association with objective measures of physical performance or functioning. METHODS: We examined the association of vertebral compression fractures with physical performance measures in 556 Japanese women aged 40-89 years. Lateral spine radiographs were obtained and radiographic vertebral compression fractures were assessed by quantitative morphometry, defined as vertebral heights more than 3 SD below the normal mean...
April 28, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28443177/atlantoaxial-stabilization-using-c1-and-c2-laminar-screw-fixation
#19
Takashi Tsuji, Kazuhiro Chiba, Yosuke Horiuchi, Tadahisa Urabe, Shota Fujita, Morio Matsumoto
We describe the use of a C1 laminar screw in combination with a C2 laminar screw as a salvage technique to treat two patients, one with persistent first intersegmental artery and the other with vertebral artery occlusion after cervical spine fracture. The combined use of C1 and C2 laminar screws allows for good fixation of the atlantoaxial joint with a lower risk of vertebral artery injury; therefore, it can be an alternative surgical procedure for patients with congenital or traumatic anomalous vertebral artery...
April 2017: Asian Spine Journal
https://www.readbyqxmd.com/read/28438449/ankylosing-spondylitis-increases-perioperative-and-postoperative-complications-after-total-hip-arthroplasty
#20
Daniel J Blizzard, Colin T Penrose, Charles Z Sheets, Thorsten M Seyler, Michael P Bolognesi, Christopher R Brown
BACKGROUND: Ankylosing spondylitis (AS) is a chronic autoimmune spondyloarthropathy that primarily affects the axial spine and hips. Progressive disease leads to pronounced spinal kyphosis, positive sagittal balance, and altered biomechanics. The purpose of this study is to determine the complication profile of patients with AS undergoing total hip arthroplasty (THA). METHODS: The Medicare sample was searched from 2005 to 2012 yielding 1006 patients with AS who subsequently underwent THA...
March 27, 2017: Journal of Arthroplasty
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