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https://www.readbyqxmd.com/read/29663916/a-bag-of-marbles-a-fascinating-compound-odontoma-of-the-maxilla
#1
Aneesh Kalra, Evelyn C Sheehy, Joanna Johnson, Fraser McDonald
Odontomas are the most common odontogenic tumors, typically diagnosed during the first two decades of life. 1 The purpose of this paper was to report an interesting case of an eight-year-old Caucasian boy who presented with an asymptomatic, progressive, firm swelling of the right maxilla with no eruption of the permanent maxillary right lateral incisor. Radiographic investigation revealed a mixed radiolucent and radiopaque lesion measuring 28 by 24 by 17 mm with a corticated border causing expansion and thinning of the buccal cortical plate...
March 15, 2018: Pediatric Dentistry
https://www.readbyqxmd.com/read/29657134/early-mortality-and-morbidity-following-a-type-ii-odontoid-fracture-in-the-elderly
#2
Hassaan Q Sheikh, Michael Athanassacopoulos, Arpan B Doshi, Lee Breakwell, Ashley Cole, Antony Louis Rex Michael, Neil Chiverton
BACKGROUND: We aimed to analyse the rates of early and causes of death in patients aged over 65 years with a type II odontoid fracture. METHODS: A consecutive series of 93 patients with a type II fracture of the odontoid process was retrospectively identified. Data collected included patient demographics, co-morbidities, associated injuries, neurological injury, date of death and cause of death. Mean patient age was 81. Five patients (5%) were treated operatively while the rest were treated in a hard cervical collar...
April 12, 2018: Surgeon: Journal of the Royal Colleges of Surgeons of Edinburgh and Ireland
https://www.readbyqxmd.com/read/29644899/technical-notes-on-the-endoscopic-endonasal-approach-to-the-craniovertebral-junction-for-odontoidectomy
#3
Dennis Tang, Christopher Roxbury, Brian D'Anza, Varun Kshettry, Troy Woodard, Pablo Recinos, Raj Sindwani
INTRODUCTION: Odontoidectomy can help decompress ventral compression of the brainstem and upper cervical spinal cord in the presence of bony abnormalities of the craniovertebral junction (CVJ), e.g., an odontoid pannus. Endonasal approaches have been shown to be associated with lower morbidity compared with traditional transoral approaches. We demonstrated an entirely endonasal approach to the CVJ. MATERIALS AND METHODS: We presented our technique for performing an endoscopic endonasal odontoidectomy...
March 2018: American Journal of Rhinology & Allergy
https://www.readbyqxmd.com/read/29644037/obstructive-hydrocephalus-secondary-to-odontoid-pannus-case-report-and-review-of-literature
#4
Wai Cheong Soon, Gopiga Thanabalasundaram, Kyaw Zayar Thant, Ebere Sunny Ogbonnaya, Stuart Edward Harrisson
Odontoid pannus or periodontoid pseudotumour is associated with a variety of rheumatological conditions. We report a case of an 80-year old man who presented with acute hydrocephalus following an emergency operation to amputate his infected left big toe. Imaging revealed a large tissue mass causing severe compression at the cervico-medullary junction and obstruction of CSF flow. The acute hydrocephalus was presumed to be related to neck manoeuvring during general anaesthesia. Following an initial emergency CSF diversion through external ventricular drainage catheter insertion, the patient subsequently underwent ventriculo-peritoneal insertion and posterior spinal decompression and fixation...
April 2018: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/29627641/occiput-axis-crossing-translaminar-screw-fixation-technique-using-offset-connectors-an-in-vitro-biomechanical-study
#5
Jiyong Gu, Weiwei Lei, Zong Xin, Yi Wu, Lin Peng, Zhibin Li, Zize Feng, Minchan Zhao, Songtao Qi, Yuntao Lu
OBJECTIVE: Fixation with the axis vertebra (C2) using pedicle screws is commonly used to treat an unstable occipitocervical junction; however, it is accompanied by a risk of vertebral artery injury. The occiput-C2 (OC2) crossing translaminar screw fixation technique may avoid this risk, but rod implantation is difficult. Offset connectors can help facilitate this construct. This study aimed to evaluate the stability of a technique for OC2 crossing translaminar screw fixation using offset connectors (C2LAM + OF) in comparison with other methods...
April 3, 2018: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29626690/traumatic-postero-lateral-c1-c2-dislocation-complicated-with-locked-lateral-mass-and-type-ii-odontoid-fracture-a-5-year-follow-up-a-case-report
#6
Zhu Minyu, Wu Shiyang, Chandoo Suraj, Huang Kelun, Lin Chaowei, Teng Honglin
STUDY DESIGN: case report: Objective: To document our experience in managing a rare complex of traumatic postero-lateral atlantoaxial dislocation combined with locked lateral mass and type II odontoid fracture. SUMMARY OF BACKGROUND DATA: METHOD: A 30 years-old male patient was referred to the author's department. He complained of a decrease in neck range of motion following a traffic accident. Neurological examination was normal. Computed tomography (CT) and open mouth X-ray showed a type II odontoid fracture and a postero-lateral dislocation with laterally locked left lateral mass at the C1-C2 level...
April 4, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29616823/odontoid-fracture-depicted-on-a-panoramic-radiograph
#7
Galal Omami, Craig S Miller
A traumatic odontoid fracture was depicted incidentally on a panoramic radiograph of a 73-year-old male patient. This brief note sheds light on the importance of following a systematic visual interrogation of panoramic radiographs, ensuring all anatomic structures are carefully assessed and incidental findings are not overlooked.
April 4, 2018: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/29603011/post-operative-regression-of-retro-odontoid-pseudotumors-treated-with-and-without-fusion
#8
Kazuyoshi Kobayashi, Shiro Imagama, Kei Ando, Yoshihiro Nishida, Naoki Ishiguro
PURPOSE: Retro-odontoid pseudotumor is common in elderly people and is a cause of cervical myelopathy. The goal of the study was to investigate surgical procedures, outcomes, and post-operative spontaneous regression of posterior cervical retro-odontoid pseudotumors. METHODS: The subjects were 29 patients who underwent surgery for myelopathy due to a retro-odontoid pseudotumor around the craniocervical region at 9 facilities and were followed-up for an average of 54 months (range 12-96 months)...
March 30, 2018: European Spine Journal
https://www.readbyqxmd.com/read/29597016/a-cohort-study-of-the-natural-history-of-odontoid-pseudoarthrosis-managed-non-operatively-in-the-elderly
#9
Jennifer Hong, Rifat Zaman, Shannon Coy, David Pastel, Nathan Simmons, Perry Ball, Sohail Mirza, William Abdu, Adam Pearson, Stuart Lollis
OBJECTIVE: While the primary goal of treatment of type II odontoid fracture is bony union, some advocate continued non-surgical management of minimally symptomatic older patients who have fibrous union or minimal fracture motion. The risk of this strategy is unknown. We reviewed our long-term outcomes following dens nonunion in order to define the natural history of type II odontoid fractures in the elderly managed non-operatively. METHODS: Retrospective chart review of 50 consecutive adults aged 65 or older with type II odontoid fracture initially managed non-surgically from 1998-2012 at a single tertiary care institution was conducted...
March 26, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29548946/anomaly-related-pathological-atlantoaxial-displacement-in-pediatric-patients
#10
Olga M Pavlova, Sergey O Ryabykh, Alexander V Burcev, Alexander V Gubin
STUDY DESIGN: Case series, level 4 of evidence. OBJECTIVES: To analyze clinical and radiological features of pathological atlantoaxial displacement (PAAD) in pediatric patients. To compose treatment algorithm for anomaly-related PAAD. SUMMARY OF BACKGROUND DATA: Criteria of different types of PAAD and treatment algorithms have been widely reported in the literature, but difficulty applicable in patients with odontoid abnormalities, C2-C3 block, spina bifida C1 and children...
March 13, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29543214/-rheumatoid-atlanto-axial-dislocation-a-surgical-approach
#11
I Yu Lisitskiy, A M Kiselev, S E Kiselev
Pathological processes in the craniovertebral region (CVR) are usually accompanied by dislocation complications leading to gross neurological disorders. One of the diseases that affect the CVR and lead to atlanto-axial dislocation (AAD) is rheumatoid arthritis. Errors in the diagnosis of rheumatoid disease and in the choice of a treatment approach may cause adverse outcomes. OBJECTIVE: To define the approach for surgical treatment of AAD associated with rheumatoid disease of the CVR, with allowance for the rigidity of deformity...
2018: Zhurnal Voprosy Neĭrokhirurgii Imeni N. N. Burdenko
https://www.readbyqxmd.com/read/29543213/-ventral-decompression-techniques-in-patients-with-traumatic-and-non-traumatic-atlanto-axial-dislocations
#12
I S Lvov, A A Grin', M A Nekrasov, A Yu Kordonskiy, A V Sytnik
Compression of the caudal medulla oblongata and ventral portions of the spinal cord is the most dangerous complication of atlanto-axial dislocation (AAD). AIM: The study objective was to improve surgical management of patients with ventral compression of the spinal cord in the setting of AAD of various genesis. MATERIAL AND METHODS: We analyzed treatment outcomes in 250 patients with C1 and C2 injuries and diseases for the period between 2002 and 2016. Persistent ventral compression of the neural structures in the setting of AAD was detected in 34 (13...
2018: Zhurnal Voprosy Neĭrokhirurgii Imeni N. N. Burdenko
https://www.readbyqxmd.com/read/29538245/mortality-rates-following-posterior-c1-2-fusion-for-displaced-type-ii-odontoid-fractures-in-octogenarians
#13
Stephen Clark, Alysa Nash, Mark Shasti, Luke Brown, Julio J Jauregui, Katherine Mistretta, Eugene Koh, Kelley Banagan, Steven Ludwig, Daniel Gelb
STUDY DESIGN: Retrospective cohort study OBJECTIVE.: To assess 30-day and one-year mortality rates as well as the most common complications associated with posterior C1-2 fusion in an octogenarian cohort. SUMMARY OF BACKGROUND DATA: Treatment of unstable type II odontoid fractures in elderly patients can present challenges. Recent evidence indicates in patients older than 80 years, posterior C1-2 fusion results in improved survival as compared to other modes of treatment...
March 13, 2018: Spine
https://www.readbyqxmd.com/read/29538039/endoscopic-endonasal-approach-to-the-upper-cervical-spine-for-decompression-of-the-cervicomedullary-junction-following-occipitocervical-fusion
#14
Ibrahim Hussain, Theodore H Schwartz, Jeffrey P Greenfield
Basilar invagination is defined as abnormal upward and/or posterior displacement of the odontoid leading to ventral compression of the cervicomedullary junction. This condition leads to lower cranial neuropathies, sensorimotor deficits, and myelopathy. These symptoms can persist even after posterior decompression, which is an indication for ventral decompression. Transoral approaches to the upper cervical spine carry significant morbidity, limiting their utility. The endonasal approach to the upper cervical spine presents an alternative for patients with amenable anatomy...
March 13, 2018: Clinical Spine Surgery
https://www.readbyqxmd.com/read/29534386/-surgical-treatment-of-intractable-odontoid-fracture-with-atlantoaxial-dislocation-in-children-with-spinal-cord-injury
#15
W D Liang, Z L Ren, J Sheng, J Wang, Abulizi Yakefu, W B Sheng
Objective: To discuss the surgical treatment and its effectiveness of odontoid fracture complicated with atlantoaxial dislocation in children with spinal cord injury. Methods: From January 2010 to December 2014, 10 cases of children under 14 years old, with intractable odontoid fracture with atlantoaxial dislocation were enrolled. The mean duration between injury and admission was 8.5 d (range 1-30 d). The surgery was performed using posterior reduction and internal fixation or anterior release combined with posterior fixation...
February 27, 2018: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29530685/computed-topography-imaging-study-of-basilar-invagination-and-atlanto-axial-dislocation
#16
Zhi-Yuan Xia, Zan Chen, Wan-Ru Duan, Xing-Hua Zhao
OBJECTIVE: To analyze axis deformities and the biomechanics related to atlanto-axial dislocation in patients with basilar invagination. METHODS: Seventy-six patients were retrospectively analyzed, including 21 patients who had basilar invagination (group B), 32 patients with basilar invagination and atlanto-axial dislocation (group C), and 23 non-deformity control subjects (group A). Using 3D computed topography (CT) imaging the distance from the tip of the dens above the Chamberlain line in the sagittal plane, atlanto-dental interval (ADI), sagittal inclination, coronal inclination, craniocervical tilt, the height of the odontoid and the ratio of the height to the odontoid basal width was measured in each patient...
March 9, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29527889/the-limits-of-the-endoscopic-endonasal-transclival-approach-for-posterior-fossa-tumors
#17
Alexandre Bossi Todeschini, Alaa S Montaser, Douglas A Hardesty, Ricardo L Carrau, Daniel M Prevedello
Endoscopic endonasal approaches (EEA) have gained popularity and acceptance in skull base surgery over the last two decades. So-called expanded EEA allow access in the sagittal plane from the frontal sinus to the odontoid process. The endoscopic endonasal transclival approach allows a unique trajectory into the midline clivus and skull base that is unachievable from traditional craniotomy approaches to lesions such as chondrosarcomas, chordomas, and posterior fossa meningiomas. In this review, we will assess the benefits and drawbacks to using an endoscopic endonasal approach versus transcranial approach to these challenging lesions, assess the anatomical limits of endoscopic endonasal transclival surgery, and discuss the published literature on the topic...
March 8, 2018: Journal of Neurosurgical Sciences
https://www.readbyqxmd.com/read/29518219/spontaneous-regression-of-a-retroodontoid-transverse-ligament-cyst-a-case-report
#18
Soliman Oushy, Lucas P Carlstrom, William E Krauss
BACKGROUND AND IMPORTANCE: Transverse ligament cysts (TLC) are rare, surgically complex lesions arising posterior to the odontoid process of C2. Direct compression of the cervicomedullary junction is a devastating consequence of untreated lesions. We report the first case of spontaneous TLC regression without surgical intervention. CLINICAL PRESENTATION: A 75-yr-old woman presented to an outside hospital with acute episodes of left face and upper extremity numbness...
March 5, 2018: Neurosurgery
https://www.readbyqxmd.com/read/29517553/pseudotumor-of-the-odontoid-process-in-calcium-pyrophosphate-deposition-disease
#19
Nikita Khmelinskii, Joana da Silva Dinis, Vítor Teixeira, José Carlos Romeu
No abstract text is available yet for this article.
March 7, 2018: Journal of Clinical Rheumatology: Practical Reports on Rheumatic & Musculoskeletal Diseases
https://www.readbyqxmd.com/read/29489401/cervical-spine-injury-from-unrecognized-craniocervical-instability-in-severe-pierre-robin-sequence-associated-with-skeletal-dysplasia
#20
Xiao Zhu, Kelly N Evans, Areeg El-Gharbawy, Jonathan Y Lee, Jack E Brooker, Noel Jabbour, Elizabeth C Tyler-Kabara, Suneeta Madan-Khertarpal, Joseph E Losee, Jesse A Goldstein
Pierre Robin Sequence (PRS) can be associated with skeletal dysplasias, presenting with craniocervical instability and devastating spinal injury if unrecognized. The authors present the case of an infant with PRS and a type II collagenopathy who underwent multiple airway-securing procedures requiring spinal manipulation before craniocervical instability was identified. This resulted in severe cervical cord compression due to odontoid fracture and occipitoatlantoaxial instability. This case highlights the importance of early cervical spine imaging and cautious manipulation in infants with PRS and suspected skeletal dysplasia...
January 1, 2018: Cleft Palate-craniofacial Journal
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