CERVICAL SPINOLAMINOPLASTY WITH NEWLY DESIGNED TITANIUM MINI-PLATES

2016 ◽  
Vol 16 (04) ◽  
pp. 1650050
Author(s):  
CAN YALDIZ ◽  
TOLGA TOLUNAY ◽  
ARSLAN KAĞAN ARSLAN ◽  
ONUR YAMAN ◽  
TEYFIK DEMIR
Keyword(s):  
Conventional Method ◽  
Cervical Vertebrae ◽  
Spinous Process ◽  
Fixation Method ◽  
Open Door ◽  
Compression Tests ◽  
New Construction ◽  
Construction Model ◽  
Mini Plate ◽  
Ultra High Molecular Weight

One of the complication of cervical laminoplasty is the restenosis of the opened laminae. Weakness of the screws placed on laminae may cause restenosis. Here, we describe a new technic ‘spinolaminoplasty (Turkish Open-door laminoplasty)’ with newly designed titanium mini plate that placed one side to lateral mass, and the other on spinous process to keep the laminae opened. Two different fixation materials were used for axial compression tests. One was Ultra high molecular weight polyethylene block with cervical vertebrae geometry and fresh ovine cervical vertebrae. In the first group, mini plates were fixed on laminae as in the conventional method described by Hirabayashi. In the second group, mini plates were fixed on spinous process to perform spinolaminoplasty with single and double screws. New fixation method with double screw provides 26% higher stiffness than the closest group, namely new fixation on polyethylene block. And new fixation method with double screw was exhibited significantly higher ([Formula: see text]) performance between the Ovine groups. As in the spinolaminoplasty technic fixing the mini plates to spinous process with longer screws instead of laminae, strengthens the system compared to the conventional method. This proves that rigidity of new construction model is more stable than the conventional method. Tight fixed laminae may prevent restenosis. Also applying the screw through spinous process instead of laminae may prevent the possible cord injuries.

The face and superficial neck

2013 ◽  
Author(s):  
Martin E. Atkinson
Keyword(s):  
Vertebral Column ◽  
Cervical Vertebrae ◽  
Small Body ◽  
Spinous Process ◽  
Odontoid Process ◽  
Cervical Vertebra ◽  
Intervertebral Discs ◽  
The Body ◽  
Thoracic Vertebrae ◽  
The Face

The surface anatomies of the face and neck and their supporting structures that can be palpated have been described in Chapter 20. It is now time to move to the structures that lie under the skin but which cannot be identified by touch starting with the neck and moving up on to the face and scalp. The cervical vertebral column comprises the seven cervical vertebrae and the intervening intervertebral discs. These have the same basic structure as the thoracic vertebrae described in Section 10.1.1. Examine the features of the cervical vertebra shown in Figure 23.1 and compare it with the thoracic vertebra shown in Figure 10.3. You will see that cervical vertebrae have a small body and a large vertebral foramen. They also have two distinguishing features, a bifid spinous process and a transverse foramen, piercing each transverse process; the vertebral vessels travel through these foramina. The first and second vertebrae are modified. The first vertebra, the atlas, has no body. Instead, it has two lateral masses connected by anterior and posterior arches. The lateral masses have concave superior facets which articulate with the occipital condyles where nodding movements of the head take place at the atlanto-occipital joints. The second cervical vertebra, the axis, has a strong odontoid process (or dens because of its supposed resemblance to a tooth) projecting upwards from its body. This process is, in fact, the body of the first vertebra which has fused with the body of the axis instead of being incorporated into the atlas. The front of the dens articulates with the back of the anterior arch of the atlas; rotary (shaking) movements of the head occur at this joint. The seventh cervical vertebra has a very long spinous process which is easily palpable. The primary curvature of the vertebral column is concave forwards and this persists in the thoracic and pelvic regions. In contrast, the cervical and lumbar parts of the vertebral column are convexly curved anteriorly. These anterior curvatures are secondary curvatures which appear in late fetal life. The cervical curvature becomes accentuated in early childhood as the child begins to support its own head and the lumbar curve develops as the child begins to sit up.

scholarly journals Anatomo-radiographic description of the axial skeleton of the crab-eating fox (Cerdocyon thous)

2012 ◽  
Vol 32 (suppl 1) ◽  
pp. 01-03 ◽  
Author(s):  
Janaína D. Barisson ◽  
Cristiane H. Louro ◽  
Sheila J.T. Dias ◽  
Flávio S. Jojima ◽  
Murilo S. Ferreira ◽  
...  
Keyword(s):  
Cervical Vertebrae ◽  
Spinous Process ◽  
Lumbar Vertebrae ◽  
Axial Skeleton ◽  
The Other ◽  
Domestic Dog ◽  
Thoracic Vertebrae ◽  
The Third ◽  
Caudal Vertebrae ◽  
Cerdocyon Thous

The aim of this study was to describe the axial skeleton of a wild Brazilian carnivorous, the crab-eating fox (Cerdocyon thous). Five specimens of crab-eating fox were previously unfrozen for radiographic exams and their bones went through dissection and chemical maceration. This animal presents seven cervical vertebrae, and from the third on, they become shorter and wider than the other ones e the spinous process was makeable from the fifth cervical vertebrae on. There are thirteen thoracic vertebrae and the spinous process of the lumbar vertebrae, which are seven, decreases from the fifth on. The sacrum is formed by two vertebrae and there are twenty or twenty one caudal vertebrae. It can be concluded that the crab-eating fox axial skeleton is similar to that of the domestic dog.

scholarly journals COMPARISON OF ANATOMICAL INFORMATION OF COLUMNA VERTEBRAE CERVICAL IN 15 TO 20-DEGREE RIGHT POSTERIOR OBLIQUE PROJECTION

2021 ◽  
Vol 1 (1) ◽  
pp. 8-12
Author(s):  
Zuzilla ◽  
T.Mohd Yoshandi ◽  
Danil Hulmansyah
Keyword(s):  
Intervertebral Disc ◽  
Quantitative Research ◽  
Vertebral Column ◽  
Cervical Vertebrae ◽  
Spinous Process ◽  
Long Bone ◽  
Oblique Projection ◽  
The Right ◽  
Anatomical Information ◽  
Radiological Examinations

Columna cervical vertebrae are a type of long bone that occurs on the back of the head. One of the radiological examinations most frequently performed in the hospital is the examination of the right posterior oblique projection cervical vertebrae (RPO). However, to see the cervical vertebrae column radiograph that is more optimal for cases of HNP, fractures, fissures, root symdrome. with a variation of the angle of 15 ° and 20 ° cranially. To find out which method is the most informative to display the right posterior oblique (RPO) projection with an angle of 15 ° and 20 ° cranially. This research is a type of quantitative research with statistical expansion. This research uses phantom. The research was conducted at the STIKes Awal Bros Pekanbaru in August 2020. The vertebral column results were used well, namely at an angle of 15 ° with clearly visible vertebral foramen, clearly visible intervertebral disc, visible C4 - C7, spinous process, clearly visible intervertebral disc.

Achievement and Future Prospects of ICT Construction in Japan

2016 ◽  
Vol 28 (2) ◽  
pp. 123-128 ◽  
Author(s):  
Kazuyoshi Tateyama ◽  
Keyword(s):  
Population Projections ◽  
Tax Revenue ◽  
Construction Technology ◽  
Future Prospects ◽  
Budget Cuts ◽  
Promising Tool ◽  
Complex Projects ◽  
Severe Reduction ◽  
New Construction ◽  
Construction Model

[abstFig src='/00280002/02.jpg' width=""300"" text='Unmanned construction system' ]Population projections for Japan suggest that the production-age population, ages 15 to 64, will be 70% or less in 2045 than that of today. In the field of construction, such rapid reductions in the production-age population will bring about a severe reduction in the number of workers as well as budget cuts in infrastructure investment due to the decrease of tax revenue. At the same time, infrastructure, which has already been constructed, is now due for maintenance and approaching its renewal dates. Therefore, the task of stably providing infrastructure for society into the future will be more difficult than ever. In the field of construction, more complex projects will have to be carried out with limited manpower and budgets. This problem will be addressed, not by an extension of existing means, but by innovations in construction technology. ICT (Intelligent Construction Technology) is expected to be a promising tool to meet these future needs. This article discusses current conditions and future prospects for a new construction model utilizing ICT in Japan.

scholarly journals Comparison of Spinous Process-Splitting Laminoplasty and En-Bloc Open Door Laminoplasty

2004 ◽  
Vol 53 (4) ◽  
pp. 725-728
Author(s):  
Tadashi Yonetake ◽  
Tetsuya Yara ◽  
Tomohiro Nakasone ◽  
Shinji Miyoshi ◽  
Ichiro Nakamura ◽  
...  
Keyword(s):  
Spinous Process ◽  
Open Door ◽  
En Bloc

Open Door Laminoplasty – Hinge Creation and Fracture Avoidance: 2-Dimensional Operative Video

2020 ◽  
Vol 19 (4) ◽  
pp. E419-E419
Author(s):  
Jeremy M V Guinn ◽  
Rory Mayer ◽  
Dean Chou
Keyword(s):  
Informed Consent ◽  
Postoperative Pain ◽  
Spinous Process ◽  
Open Door ◽  
Paraspinal Muscles ◽  
Surgical Video ◽  
Spinous Processes ◽  
Single Opening ◽  
Strong Attachment ◽  
Hinge Fracture

Abstract This surgical video demonstrates a technique for an open-door laminoplasty with its associated risks.1-3 The key to maintaining a strong hinge that can be opened without fracture lies in gradual, slow drilling of the hinge followed by sequential, progressively wider opening of the laminoplasty. This is in contradistinction to a single opening maneuver, which “cracks” the hinge and can result in fracture and disconnection of the lamina from the spine. We present our technique of C4-6 right-sided open-door laminoplasty. A C3 laminectomy is performed instead of a laminoplasty in order to prevent any muscular dissection of C2. This not only maintains the strong muscular attachment to C2, but it also helps alleviate postoperative pain since the muscles are maintained.4-6 The top of C7 is drilled to decompress the C6-7 level, and the C7 spinous process, along with its strong attachment to T1, is maintained to prevent kyphosis. The video highlights methods for maintaining key muscular and ligamentous attachments (C2 muscles and C7-T1 ligament) to decrease kyphosis risk, progressive hinge opening to help mitigate the risk of hinge fracture, and methods to help decrease postoperative pain (avoiding laminoplasty of C3, maintaining muscular and ligamentous attachments as stated above, and contouring the spinous processes in a manner that avoids protrusion into the paraspinal muscles). We have received informed consent of this patient to submit this video.

Morphological Investigations on Epistropheus in Ox and the Comparison of it with Resembling Bone in Horse, Dog, Sheep and Goat

2021 ◽  
Vol 9 (1.3) ◽  
pp. 7896-7900
Author(s):  
Kajal Rai ◽  
◽  
Rachna Soan ◽  
Balwant Meshram ◽  
Gajendra Singh ◽  
...  
Keyword(s):  
Cervical Vertebrae ◽  
Spinous Process ◽  
Bos Indicus ◽  
Odontoid Process ◽  
The Body ◽  
Ovis Aries ◽  
Capra Hircus ◽  
Cervical Region ◽  
Anatomical Studies ◽  
Anatomical Features

Background: The documentation of anatomical features of epistropheus, which is also called as axis (C2) in different animals is not abundantly available on record. The observance of this C2 bone in ox made and compared it with the similar bone in different species of animals as to Horse, Dog, Sheep and Goat. The axis of ox was positioning cranially with spout like odontoid process which called as the dens. It was projected from the body. Due to its tooth like process, it was also known as vertebra dentata. The blade like supraspinous cranial process had increasing height and thickness towards its caudal progression, however, its infraspinous process was observed as the median ridge. While knowing such differential anatomical characters of axis (C2) in different species of animals as to Horse, Dog, Sheep and Goat this study is undertaken for comparison with the axis of Ox. Aims: Present endeavour aiming to have the comparative anatomical studies of the epistropheus i.e. axis (C2) bone of Ox and its comparison with the similar bone of Horse, Dog, Sheep and Goat. Materials and Methods: Six dried samples of second cervical of Ox (Bos indicus) were collected and explored its anatomical features. The comparative anatomical studies of the similar bone were performed in different species including horse (Equus ferus), dog (Canidae canis), sheep (Ovis aries) and goat (Capra hircus). Results: In horses, epistropheus i.e. axis the axis had longer body than the ox. The dens was conical and narrow. The axis of dog had cylindrical longer dens. Large and heightened spine as the pendant was observed, which was terminating caudally by the tuberosity of two crests. The axis of sheep had small, blunt and convex dorsal spinous process without remarkable ventral spine. The axis of goat had thin and heighted dorsal spinous process that overlaps the adjacent cranial and caudal cervical vertebrae. Conclusion: The findings of present studies are not only bringing the expositions of axis, the important bone of cervical region in different animals but also this is sufficiently bringing the fullest use for radiographic anatomy. KEY WORDS: Anatomy, Axis, Epistropheus, Ox, Horse, Dog, Sheep, Goat.

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