Congenital absence of a pedicle in the cervical spine: A new approach with CT scan

1979 ◽  
Vol 17 (2) ◽  
pp. 121-125 ◽  
Author(s):  
E. Brugman ◽  
Y. Palmers ◽  
B. Staelens
Keyword(s):  
Cervical Spine ◽  
Ct Scan ◽  
Congenital Absence ◽  
New Approach

scholarly journals Misdiagnosing absent pedicle of cervical spine in the acute trauma setting

2015 ◽  
Vol 7 (3) ◽  
Author(s):  
Fahad H. Abduljabbar ◽  
Felipe Rossel ◽  
Anas Nooh ◽  
Peter Jarzem
Keyword(s):  
Cervical Spine ◽  
Ct Scan ◽  
University Hospital ◽  
Congenital Absence ◽  
Posterior Arch ◽  
Acute Trauma ◽  
Additional Imaging ◽  
Cervical Pedicle ◽  
Absent Pedicle ◽  
Cervical Abnormality

Congenital absence of cervical spine pedicle can be easily misdiagnosed as facet dislocation on plain radiographs especially in the acute trauma setting. Additional imaging, including computed tomography (CT)-scan with careful interpretation is required in order to not misdiagnose cervical posterior arch malformation with subsequent inappropriate management. A 39-year-old patient presented to the emergency unit of our university hospital after being trampled by a cow over her back and head followed by loss of consciousness, retrograde amnesia and neck pain. Her initial cervical CT-scan showed possible C5-C6 dislocation, then, it became clear that her problem was a misdiagnosed congenital cervical abnormality. Patient was treated symptomatically without consequences. The congenital absence of a cervical pedicle is a very unusual condition that is easily misdiagnosed. Diagnosis can be accurately confirmed with a CT-scan of the cervical spine. Symptomatic conservative treatment will result in resolution of the symptoms.

Atlantoaxial Instability

2018 ◽  
pp. 41-48
Author(s):  
Jonathan M. Parish ◽  
Domagoj Coric
Keyword(s):  
Cervical Spine ◽  
Ct Scan ◽  
Plain Film ◽  
Cord Compression ◽  
Atlantoaxial Instability ◽  
Cervical Cord ◽  
Screw Length ◽  
Cord Injury ◽  
Bony Anatomy ◽  
Atlantodental Interval

There are a number of different imaging modalities that can be used to confirm atlantoaxial instability. Plain film radiographs of the cervical spine can be used to assess the atlantodental interval (ADI). Cervical CT is necessary to assess the atlantoaxial bony anatomy as well as to assess the foramen transversarium at C1 and C2. In particular, CT scan should be used to estimate screw length, medial/lateral and cranial/caudal screw trajectory. MRI can also evaluate the extent of cervical cord compression or cord injury that has occurred due to atlantoaxial instability.

scholarly journals Impact of MRI on changing management of the cervical spine in blunt trauma patients with a ‘negative’ CT scan

2016 ◽  
Vol 1 (1) ◽  
pp. e000016 ◽  
Author(s):  
Mohamed A Mohamed ◽  
Karl D Majeske ◽  
Gul Sachwani-Daswani ◽  
Daniel Coffey ◽  
Karim M Elghawy ◽  
...  
Keyword(s):  
Cervical Spine ◽  
Ct Scan ◽  
Blunt Trauma ◽  
Trauma Patients

CT scan patterns of articular mass injuries of the lower cervical spine

2000 ◽  
Vol 7 (6) ◽  
pp. 361-368
Author(s):  
P. Eude ◽  
F. Deperetti ◽  
G. Eude ◽  
A. Ghabris ◽  
I. Hovorka ◽  
...  
Keyword(s):  
Cervical Spine ◽  
Ct Scan ◽  
Lower Cervical Spine

scholarly journals Percutaneous Screw Fixation and Cementoplasty to Stabilize Unstable Osteolytic Fracture of Odontoid Process

2021 ◽  
Author(s):  
Loïc Grange ◽  
Rémi Grange ◽  
Sylvain Bertholon ◽  
Stéphanie Morisson ◽  
Cécile Vassal ◽  
...  
Keyword(s):  
Cervical Spine ◽  
Ct Scan ◽  
Screw Fixation ◽  
Saline Water ◽  
Odontoid Process ◽  
The Body ◽  
Percutaneous Screw Fixation ◽  
Secondary Fracture ◽  
Anterior Cortex ◽  
Iodinated Contrast

Abstract Introduction: We relay a case of unstable lytic secondary fracture of odontoid process (C2) treated by screw fixation and cementoplasty, using a percutaneous approach. Case Presentation: A 62-year-old female patient followed for a breast neoplasia with bone concurrent metastases, suffered from diffuse cervical pain. A CT-scan showed a lytic fracture of C2. The procedure was performed using CT-scan guidance under general anesthesia. After a biphasic enhanced CT scan of the neck and cervical spine, a needle was slowly inserted to hydrodissect the jugulocarotid and prevertebral spaces up to the anterior cortex of C2 using an iodinated contrast agent solution diluted 5% with saline water. Under fluoroscopy guidance and intermittent CT monitoring, a bone pin was navigated though the anterior cortex of C2, and then advanced inside the vertebral body of C2. After checking for optimal positioning of the bone pin, a 34mm-long titanium screw was inserted into C2 until reaching the posterior cortex. The approach to the transverse fracture line of the body of the odontoid was tangential with no displacement of the bony parts. Cement injection was then performed. One month after the procedure, a CT scan showed no material displacement, and the patient had no visible skin scarring. The patient regained full mobility of the cervical spine, and the pain decreased from 7/10 before the procedure to 0/10 after the procedure according to the patient.Conclusion: Percutaneous screw fixation and cementoplasty to stabilize unstable osteolytic fracture of odontoid process is safe and feasible

scholarly journals Comparison of Dorsal-to-Ventral Ratios of the Cervical Paraspinal Musculature in French Bulldogs With and Without Cervical Intervertebral Disk Disease and Two Other Breeds Based on CT Scan Measurements

2021 ◽  
Vol 8 ◽  
Author(s):  
Julia Hart ◽  
Stefan Rupp ◽  
Katinka Hartmann ◽  
Carolin Fischer ◽  
Pia Düver ◽  
...  
Keyword(s):  
Cervical Spine ◽  
Ct Scan ◽  
Body Length ◽  
Vertebral Body ◽  
Influencing Factor ◽  
Intervertebral Disk ◽  
Ct Scans ◽  
Height Ratio ◽  
Significant Difference ◽  
Major Factors

Objective: To objectively assess the cervical paraspinal musculature of French bulldogs (FBs) using computed tomography (CT) scan-based measurements, outline differences in other breeds published in the literature, and investigate the potential influence of its cervical paraspinal musculature on predisposed sites for intervertebral disk disease.Animals: Thirty FBs that underwent CT scans of the cervical spine from the skull to C7/T1 were enrolled. Fifteen dogs were patients suffering from intervertebral disk herniation (IVDH group), and 15 dogs underwent CT scans due to brachycephalic obstructive airway syndrome (BOAS group).Methods: At the level of each cervical intervertebral disk from C2/C3 to C7/T1, measurements were performed and statistically analyzed. On the sagittal CT scan reconstruction, the height ratio of the dorsal to ventral paraspinal musculature and the angle of the disk axis to vertebral body length were assessed. On the transverse plane, the area ratio of the dorsal and ventral paraspinal musculature and the ratio of force moments were determined at each intervertebral disk level. Finally, ratios were compared to the values of Labrador retrievers and dachshunds published by Hartmann et al. (1).Results: Comparing the two FB groups, one significant difference was detected in the mean height ratio of the dorsal to ventral paraspinal musculature at the level of C5/C6 (P = 0.0092) and C6/C7 (P = 0.0076), with IVDH FBs having the more prominent dorsal paraspinal musculature. At the level of C3/C4, a significantly less prominent dorsal paraspinal musculature in FBs than in dachshunds (P = 0.0058) and a significantly steeper disk to vertebral body angulation were observed (P = 0.0005).Conclusion: Although some incidental differences were found, most parameters did not significantly differ between the BOAS and IVDH FBs. Significant conformational differences in the cervical paraspinal musculature and disk to vertebral body length angulation were found between FBs and two other breeds (chondrodystrophic and non-chondrodystrophic). This study's findings suggest that the paraspinal musculature is an additional biomechanical influencing factor on the preferential sites of IVDH in the cervical spine and that other major factors exist in IVDH development, especially in FBs.

scholarly journals Pedicle Morphometry of Sub Axial Cervical Spine using Computed Tomography Scans among Adult Ugandan Population

2021 ◽  
Author(s):  
Ssebuggwawo Jonathan ◽  
Wani Muzeyi ◽  
Erem Geoffrey ◽  
Waiswa Gonzaga ◽  
SSekitooleko badru ◽  
...  
Keyword(s):  
Cervical Spine ◽  
Ct Scan ◽  
Cervical Vertebrae ◽  
Pedicle Screws ◽  
Cross Sectional Study ◽  
Study Data ◽  
Cross Sectional ◽  
Level Of Significance ◽  
Pedicle Width ◽  
Ugandan Population

Abstract Background: Accurate placement of pedicle screws in the sub axial cervical spine requires precise understanding of vertebrae anatomy. Little is known about the morphometric characteristics of the sub axial cervical pedicle in the Ugandan population. The objective of the study was to determine the morphometric dimensions of pedicles in the sub axial cervical spine among the adult Ugandan population. Methods: We conducted a cross sectional study from March to November 2019 among adult Ugandans with a normal cervical CT scan at Nsambya hospital in Kampala. Eligible participants were consecutively recruited into the study. Data on baseline characteristics and pedicle dimensions from the CT scan findings were collected using a structured questionnaire and analysed using Stata 13.0. Pedicle dimensions for the different levels of sub axial cervical vertebrae were summarised as means and standard deviations, the Mann Whitney test was used to compare pedicle dimensions for the different vertebrae level among females and males on both right and left side and the level of significance was set at 0.05. Results: A total of 700 sub axial cervical pedicles (C3-C7) from 49 males and 21 female participants were studied. Pedicle width diameter showed cephalo-caudal gradual increment from C3 [1.65(0.63) mm] to [3.46(0.75) mm] at C7. Pedicle height also showed an increase caudally with smallest diameter at C3 [1.98(0.76) mm] and largest at C5 in females [3.67(6.42) mm] and at C7in males [3.83(0.76) mm]. The pedicle height was wider than the pedicle width at all levels. The pedicle chord length gradually increased caudally in both sexes ranging from [29.08(1.35) mm] at C3 to [32.53(3.19) mm] at C7. The axial angles were oriented medially and showed no consistent trend ranging between 500 and 530. The sagittal angles decreased as one moved from C3 to C7. The dimensions of females were significantly smaller than in males.Conclusion: Pedicle endosteal width was smaller than pedicle height dimensions at all levels. Pedicle cord length increased caudally. The pedicle dimensions except angulations, were smaller in females than in males.

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