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Reversal of the cervical lordosis

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https://www.readbyqxmd.com/read/27572943/factors-that-regulate-spinal-cord-position-after-expansive-open-door-laminoplasty
#1
Takashi Tsuji, Kazuhiro Chiba, Takashi Asazuma, Hideaki Imabayashi, Naobumi Hosogane, Morio Matsumoto
INTRODUCTION: Although appropriate dorsal migration of the spinal cord is a desired end point of cervical laminoplasty, it is difficult to predict in advance the spinal cord position after surgery and to control it during surgery. The aim of the present study was to investigate the factors that affect postoperative spinal cord position after cervical laminoplasty using multivariable analysis. MATERIALS AND METHODS: We retrospectively assessed 56 consecutive patients with cervical spondylotic myelopathy treated by open-door laminoplasty...
August 29, 2016: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/26218390/objective-clinical-assessment-of-posture-patterns-after-implant-breast-augmentation
#2
Giovanni Nicoletti, Silvia Mandrini, Valentina Finotti, Anna Dall'Angelo, Alberto Malovini, Simona Chierico, Angela Faga, Elena Dalla Toffola
BACKGROUND: An increased weight of the breasts causes several spinal postural alterations that reduce the ability to perform dynamic tasks requiring a stable balance. The effects of the increased weight of the breasts on static posture after implant breast augmentation have not been investigated yet. METHODS: Forty volunteer healthy women were asked to wear different sized breast implants (800, 400, and 300 g) inside a dedicated sports bra for 6½ consecutive hours during their everyday life activities, 1 day for every implant size...
August 2015: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/25967543/distal-bimelic-amyotrophy-dbma-phenotypically-distinct-but-identical-on-cervical-spine-mr-imaging-with-brachial-monomelic-amyotrophy-hirayama-disease
#3
Veeramani Preethish-Kumar, Atchayaram Nalini, Ravinder-Jeet Singh, Jitender Saini, Chandrajit Prasad, Kiran Polavarapu, Kandavel Thennarasu
Our objective was to characterize the MR imaging features in a large and distinct series of distal bimelic amyotrophy (DBMA) from India. We utilized a retrospective and prospective study on 26 cases. Results demonstrated that upper limb distal muscle wasting and weakness was predominantly symmetrical in onset. Mean age at onset was 20.9 ± 7.0 years, mean duration 83.0 ± 102.6 months. MRI carried out in 22 patients with flexion studies showed forward displacement of posterior dura in 19 (86.4%). Crescent shaped epidural enhancement on contrast was seen in 20/24 cases (83...
2015: Amyotrophic Lateral Sclerosis and Frontotemporal Degeneration
https://www.readbyqxmd.com/read/24718067/effect-of-cervical-kyphotic-deformity-type-on-the-motion-characteristics-and-dynamic-spinal-cord-compression
#4
Monchai Ruangchainikom, Michael D Daubs, Akinobu Suzuki, Tetsuo Hayashi, Gil Weintraub, Christopher J Lee, Hirokazu Inoue, Haijun Tian, Bayan Aghdasi, Trevor P Scott, Kevin H Phan, Areesak Chotivichit, Jeffrey C Wang
STUDY DESIGN: Retrospective analysis of kinematic magnetic resonance images. OBJECTIVE: To provide baseline data on the segmental angular and translational motion of the degenerated cervical spine by subtype of kyphotic cervical deformity and to elucidate the relationship between motion and degree of spinal cord compression. SUMMARY OF BACKGROUND DATA: Kyphotic deformities of the cervical spine are relatively common and are classified as either global or focal...
May 20, 2014: Spine
https://www.readbyqxmd.com/read/23560711/relationship-between-degree-of-focal-kyphosis-correction-and-neurological-outcomes-for-patients-undergoing-cervical-deformity-correction-surgery
#5
Matthew J Grosso, Roy Hwang, Thomas Mroz, Edward Benzel, Michael P Steinmetz
OBJECT: Reversal of the normal cervical spine curvature, as seen in cervical kyphosis, can lead to mechanical pain, neurological dysfunction, and functional disabilities. Surgical intervention is warranted in patients with sufficiently symptomatic deformities in an attempt to correct the deformed cervical spine. In theory, improved outcomes should accompany a greater degree of correction toward lordosis, although there are few data available to test this relationship. The purpose of this study is to determine if the degree of deformity correction correlates with improvement in neurological symptoms following surgery for cervical kyphotic deformity...
June 2013: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/23324935/the-reversibility-of-swan-neck-deformity-in-chronic-atlantoaxial-dislocations
#6
Peter G Passias, Shenglin Wang, Deng Zhao, Shaobai Wang, Michal Kozanek, Chao Wang
STUDY DESIGN: Prospective case series and radiographical analysis. OBJECTIVE: This study aimed to characterize the changes in subaxial alignment after surgical correction of occipitoaxial kyphosis, establish normal parameters, and report on clinical outcomes in a population of patients with chronic atlantoaxial dislocation patients presenting with swan neck deformities. SUMMARY OF BACKGROUND DATA: Swan neck deformity of the cervical spine is a term used to describe the simultaneous development of both abnormal kyphosis and hyperlordosis malalignments...
April 1, 2013: Spine
https://www.readbyqxmd.com/read/23188161/pre-and-post-operative-sagittal-balance-in-idiopathic-scoliosis-a-comparison-over-the-ages-of-two-cohorts-of-132-adolescents-and-52-adults
#7
COMPARATIVE STUDY
Pierre Roussouly, Hubert Labelle, Jihane Rouissi, Arnaud Bodin
STUDY DESIGN: Retrospective study of a prospective clinical and radiological database of subjects with adolescent (AIS) and adult (AS) idiopathic scoliosis undergoing surgical correction by posterior approach. OBJECTIVES: To evaluate the differences in sagittal alignment of the spine and pelvis in AIS and AS before surgery and changes after surgery in both populations. The relationship between the spine and pelvis highly influences the sagittal balance in adults and adolescents...
March 2013: European Spine Journal
https://www.readbyqxmd.com/read/21796394/sagittal-parameters-of-the-spine-biomechanical-approach
#8
REVIEW
Pierre Roussouly, João Luiz Pinheiro-Franco
According to the anatomical segmentation, spine curves are the sacral kyphosis (sacrum), lumbar lordosis (L1 to L5), thoracic kyphosis (T1 to T12) and cervical lordosis (C1 to C7). From the morphological point of view the vertebrae of a curve are not identical: from cranial to caudal and vice versa there is a progressive anatomical modification. Both curves of the thoraco-lumbar spine may be divided at the Inflexion Point where lordosis turns into kyphosis. A geometrical construct of each curve by two tangent arcs of circle allows understanding the reciprocal changes between both curves...
September 2011: European Spine Journal
https://www.readbyqxmd.com/read/20936307/posterior-approach-for-cervical-fracture-dislocations-with-traumatic-disc-herniation
#9
Hiroaki Nakashima, Yasutsugu Yukawa, Keigo Ito, Masaaki Machino, Hany El Zahlawy, Fumihiko Kato
In the treatment algorithm for cervical spine fracture-dislocations, the recommended approach for treatment if there is a disc fragment in the canal is the anterior approach. The posterior approach is not common because of the disadvantage of potential neurological deterioration during reduction in traumatic cervical herniation patients. However, reports about the frequency of this deterioration and the behavior of disc fragments after reduction are scarce. Forty patients with traumatic disc herniation were observed...
March 2011: European Spine Journal
https://www.readbyqxmd.com/read/20418999/kyphosis-in-spinal-tuberculosis-prevention-and-correction
#10
Anil K Jain, Ish Kumar Dhammi, Saurabh Jain, Puneet Mishra
Spinal deformity and paraplegia/quadriplegia are the most common complications of tuberculosis (TB) of spine. TB of dorsal spine almost always produces kyphosis while cervical and lumbar spine shows reversal of lordosis to begin with followed by kyphosis. kyphosis continues to increase in adults when patients are treated nonoperatively or by surgical decompression. In children, kyphosis continues to increase even after healing of the tubercular disease. The residual, healed kyphosis on a long follow-up produces painful costopelvic impingement, reduced vital capacity and eventually respiratory complications; spinal canal stenosis proximal to the kyphosis and paraplegia with healed disease, thus affecting the quality and span of life...
April 2010: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/19320581/reversal-of-longstanding-musculoskeletal-changes-in-basilar-invagination-after-surgical-decompression-and-stabilization
#11
Atul Goel, Abhidha Shah
OBJECT: The authors investigated the changes in the bone architecture and the characteristics of the neck and craniovertebral region in selected cases of basilar invagination. The reversal in these changes that occurred after decompression and fixation are analyzed. The implications of such an analysis in understanding the pathogenesis of a number of features that are characteristically associated with basilar invagination are evaluated. METHODS: One hundred and seventy selected patients with basilar invagination who underwent atlantoaxial joint distraction-fixation surgery at the authors' institution between 1999 and April 2008 were reviewed...
March 2009: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/19214092/disc-prolapse-evidence-of-reversal-with-repeated-extension
#12
Joan P Scannell, Stuart M McGill
STUDY DESIGN: A basic science study that used a porcine cervical spine model to produce disc prolapse subsequently exposed to an extension protocol. OBJECTIVE: This study investigated whether extension or combined extension and side flexion could move the displaced portion of nucleus from the anulus towards the nucleus. SUMMARY OF BACKGROUND DATA: Previous research has established that repeated flexion can create disc prolapse, the question here is whether repeated extension can reverse the process...
February 15, 2009: Spine
https://www.readbyqxmd.com/read/16448563/sagittal-jaw-position-in-relation-to-body-posture-in-adult-humans-a-rasterstereographic-study
#13
Carsten Lippold, Gholamreza Danesh, Markus Schilgen, Burkhard Drerup, Lars Hackenberg
BACKGROUND: The correlations between the sagittal jaw position and the cranio-cervical inclination are described in literature. Only few studies focus on the sagittal jaw position and the body posture using valid and objective orthopaedic examination methods. The aim of this study was to test the hypothesis that patients with malocclusions reveal significant differences in body posture compared to those without (upper thoracic inclination, kyphotic angle, lordotic angle and lower lumbar inclination)...
2006: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/13790556/cineradiographic-studies-of-the-normal-cervical-spine
#14
M D JONES
By considering the cervical spine as several segments with relatively different motions, an understanding of the total possible motions of the cervical spine can be more easily attained. Reversal of the cervical lordosis is a normal part of the flexion action and can result from positioning of the patient for radiographic studies. The effect of standing or sitting postures, and methods of initiating flexion of the neck should be considered in the evaluation of routine flexion and extension studies. Evaluation of individual cervical segments may be accomplished by the use of different methods of initiating flexion...
November 1960: California Medicine
https://www.readbyqxmd.com/read/12183697/evaluation-of-axial-and-flexural-stresses-in-the-vertebral-body-cortex-and-trabecular-bone-in-lordosis-and-two-sagittal-cervical-translation-configurations-with-an-elliptical-shell-model
#15
Deed E Harrison, E William Jones, Tadeusz J Janik, Donald D Harrison
BACKGROUND: Osteoarthritis and spinal degeneration are factors in neck and back pain. Calculations of stress in clinically occurring configurations of the sagittal cervical spine are rare. OBJECTIVE: To calculate and compare combined axial and flexural stresses in lordosis versus cervical configurations in anterior and vertical sagittal head translated positions. DESIGN: Digitized measurements from lateral cervical radiographs of 3 different shapes were used to calculate axial loads and bending moments on the vertebral bodies of C2-C7...
July 2002: Journal of Manipulative and Physiological Therapeutics
https://www.readbyqxmd.com/read/11483184/anterior-approaches-to-cervical-spondylosis-and-ossification-of-the-posterior-longitudinal-ligament-review-of-operative-technique-and-assessment-of-65-multilevel-circumferential-procedures
#16
REVIEW
N Epstein
BACKGROUND: Multilevel anterior cervical corpectomy with fusion (ACF) offers direct resection of spondylostenosis and ossification of the posterior longitudinal ligament (OPLL) with immediate stabilization. Ideal candidates for multilevel ACF include younger patients (<65 years of age), or older individuals (>65 years of age) with loss or reversal of the cervical lordosis (kyphosis). METHODS: Sixty-five patients, averaging 56 years of age and including 40 males and 25 females, with multilevel MR- and CT-documented spondylostenosis and OPLL were studied...
June 2001: Surgical Neurology
https://www.readbyqxmd.com/read/11345637/slight-head-extension-does-it-change-the-sagittal-cervical-curve
#17
D E Harrison, D D Harrison, T J Janik, B Holland, L A Siskin
It is commonly believed that slight flexion/extension of the head will reverse the cervical lordosis. The goal of the present study was to determine whether slight head extension could result in a cervical kyphosis changing into a lordosis. Forty consecutive volunteer subjects with a cervical kyphosis and with flexion in their resting head position had a neutral lateral cervical radiograph followed immediately by a lateral cervical view taken in an extended head position to level the bite line. Subjects were patients at a spine clinic in Elko, Nevada...
April 2001: European Spine Journal
https://www.readbyqxmd.com/read/10616055/indirect-posterior-reduction-and-fusion-of-the-traumatic-herniated-disc-by-using-a-cervical-pedicle-screw-system
#18
K Abumi, Y Shono, Y Kotani, K Kaneda
OBJECT: In this study the authors retrospectively review 16 patients with traumatic disc herniation secondary to middle and lower cervical spine injuries who underwent a single posterior reduction and fusion procedure in which a cervical pedicle screw system was used. The study was undertaken to evaluate whether the procedure effectively reduced the disc herniation and whether it can be safely conducted without performing anterior decompressive surgery. METHODS: A total of 73 patients with middle and lower cervical spine injuries were identified...
January 2000: Journal of Neurosurgery
https://www.readbyqxmd.com/read/9726065/the-relationship-between-posture-and-curvature-of-the-cervical-spine
#19
C M Visscher, W de Boer, M Naeije
OBJECTIVE: To study the relationship between posture and curvature of the cervical spine in healthy subjects. SUBJECTS: The study was composed of 54 healthy students (25 men and 29 women) aged 20-31 yr with a mean age of 24.7 yr. METHODS: Lateral radiographs were taken of the head and cervical spine of the subjects while standing in a neutral position. Cervical spine posture was quantified by the angle of a reference line, composed of reference points of the upper six cervical vertebrae, with the horizontal axis...
July 1998: Journal of Manipulative and Physiological Therapeutics
https://www.readbyqxmd.com/read/9502067/treatment-of-cervical-disc-protrusions-via-instrumental-chiropractic-adjustment
#20
REVIEW
B S Polkinghorn
OBJECTIVE: To discuss the case of a patient suffering from posttraumatic cervical syndrome involving multiple protrusions of cervical intervertebral discs that was treated successfully with conservative, instrumental chiropractic adjusting procedures. CLINICAL FEATURES: A 42-yr-old woman suffered from acute neck and arm pain after traumatic injury sustained in an automobile accident. Radiological examination exhibited a complete reversal of the cervical lordosis, and magnetic resonance imaging of the cervical spine revealed intervertebral disc protrusions, ranging in size from 1-4 mm, at four separate segmental levels...
February 1998: Journal of Manipulative and Physiological Therapeutics
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