3,854 results match your criteria Os Odontoideum


Os Odontoideum.

J Neurosci Rural Pract 2019 Jan-Mar;10(1):125

Department of Neurosurgery, Hospital of Sion, CHVR, Sion, Switzerland.

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http://dx.doi.org/10.4103/jnrp.jnrp_252_18DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6337978PMC
February 2019

[Recommendations for the Diagnostic Testing and Therapy of Atlas Fractures].

Z Orthop Unfall 2019 Feb 5. Epub 2019 Feb 5.

Unfall- und Wiederherstellungschirurgie, BG Klinikum Bergmannstrost Halle (Saale).

In a consensus process with four sessions in 2017, the working group on "the upper cervical spine" of the German Society for Orthopaedic and Trauma Surgery (DGOU) formulated "Therapeutic Recommendations for the Diagnosis and Treatment of Fractures to the Upper Cervical Spine", incorporating their own experience and current literature. The following article describes the recommendations for the atlas vertebra. About 10% of all cervical spine injuries include the axis vertebra. Read More

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http://dx.doi.org/10.1055/a-0809-5765DOI Listing
February 2019
2 Reads

Influence of Atlantoaxial Fusion on Sagittal Alignment of the Occipitocervical and Subaxial spines in Os Odontoideum with Atlantoaxial Instability.

Asian Spine J 2019 Jan 24. Epub 2019 Jan 24.

Department of Orthopedic Surgery, Busan Korea Hospital, Busan, Korea.

Study Design: Retrospective case analysis.

Purpose: We hypothesized that larger the C1-C2 fusion angle, greater the severity of the sagittal malalignment of C0-C1 and C2- C7.

Overview Of Literature: In our experience, instances of sagittal malalignment occur at C0-C1 and C2-C7 following atlantoaxial fusion in patients with Os odontoideum (OO). Read More

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http://dx.doi.org/10.31616/asj.2018.0154DOI Listing
January 2019

Wiring or Screwing at the Craniovertebral Junction in Childhood: Past and Present Personal Experience.

Acta Neurochir Suppl 2019 ;125:253-258

Institute of Neurosurgery, Catholic University School of Medicine, Rome, Italy.

Background: Craniovertebral junction (CVJ) instrumentation and fusion in childhood are frequently performed with either sublaminar wires or screws in lateral masses, and both are considered quite safe procedures.

Methods: Our experience deals with 12 children: six (mean age 9.5 years) harbouring a congenital instability associated with Down's or Morquio's syndromes and primary os odontoideum; and six (mean age 11. Read More

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http://dx.doi.org/10.1007/978-3-319-62515-7_36DOI Listing
January 2019
1 Read

Transoral Versus Transnasal Approach for Craniovertebral Junction Pathologies: Which Route Is Better?

Acta Neurochir Suppl 2019 ;125:181-186

Institute of Neurosurgery, Catholic University of Rome, Rome, Italy.

Background: Several pathologies that affect the craniovertebral junction (CVJ) can be treated by means of a microsurgical transoral approach (TOA) or, alternatively, with an endoscopic endonasal approach (EEA), which is potentially able to overcome some complications associated with the former approach. In this paper, after discussing updates in the recent literature, to which we add our own surgical experience, we critically analyse these procedures with the aim of demonstrating that the TOA still deserves to be considered a viable alternative and that, in selected cases, it can even be considered superior to the EEA.

Methods: Our experience involves 25 anterior procedures in 24 paediatric and adult patients (18 TOA and seven EEA). Read More

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http://dx.doi.org/10.1007/978-3-319-62515-7_27DOI Listing
January 2019
3 Reads

The role of soft tissue mobilization in reducing orofacial and general complaints in a patient with Kimmerle anomaly and temporomandibular joint disorder: A case report.

Cranio 2019 Jan 4:1-14. Epub 2019 Jan 4.

a Department of Prosthodontics , Medical University of Bialystok , Bialystok , Poland.

Background: Kimmerle anomaly belongs to the anatomic varieties of the first cervical vertebra. The clinical pattern is dominated by vascular- and neurogenic-type headaches, dizziness, decreased postural muscle tension, and vegetative symptoms.

Clinical Presentation: A 37-year-old woman who suffered from headache and pain in the left temporomandibular joint underwent clinical examination, electromyography of masticatory muscles, temporomandibular joint vibration analysis, cone beam computed tomography, and soft tissue mobilization. Read More

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http://dx.doi.org/10.1080/08869634.2018.1560616DOI Listing
January 2019
7 Reads

The Managment of cervical spine abnormalities in children with spondyloepiphyseal dysplasia congenita: Observational study.

Medicine (Baltimore) 2019 Jan;98(1):e13780

Department of Medical Chemistry, Medical University of Vienna, Vienna, Austria.

Spondyloepiphyseal dysplasia congenita (SEDC) is an autosomal dominant disorder, characterized by disproportionate dwarfism with short spine, short neck associated with variable degrees of coxa vara. Cervical cord compression is the most hazardous skeletal deformity in patients with SEDC which requires special attention and management.Ten patients with the clinical and the radiographic phenotypes of spondyloepiphyseal dysplasia congenita have been recognized and the genotype was compatible with single base substitutions, deletions or duplication of part of the COL2A1 gene (6 patients out of ten have been sequenced). Read More

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http://dx.doi.org/10.1097/MD.0000000000013780DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6344193PMC
January 2019
7 Reads
5.723 Impact Factor

Chronic posterior atlantoaxial subluxation associated with os odontoideum: a rare condition. A case report and literature review.

Spinal Cord Ser Cases 2018 19;4:110. Epub 2018 Dec 19.

Spine unit, Institute of Orthopaedics, Lerdsin Hospital, Bangkok, Thailand.

Introduction: Os odontoideum is a rare cervical lesion. This unusual condition is sometimes associated with atlantoaxial subluxation, which is mostly anterior subluxation. Posterior atlantoaxial subluxation due to os odontoideum is extremely rare. Read More

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http://www.nature.com/articles/s41394-018-0143-y
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http://dx.doi.org/10.1038/s41394-018-0143-yDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6300540PMC
December 2018
6 Reads

Post-traumatic os odontoideum - case presentation and literature review.

Trauma Case Rep 2018 Dec 27;18:46-51. Epub 2018 Nov 27.

Soroka University Medical Center, Department of Spine Surgery, Beer-Sheva, Israel.

Os odontoideum is a rare condition. Nevertheless this condition was described by Giacomini in 1886. It is defined radiologicaly as an oval or round-shaped ossicle of variable size with smooth circumferential cortical margins representing the odontoid process that has no continuity with the body of C2. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S23526440183003
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http://dx.doi.org/10.1016/j.tcr.2018.11.004DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6263090PMC
December 2018
10 Reads

Fatal atlantoaxial dislocation due to an odontoid synchondrosis fracture in a child with chromosome 9 abnormality: A case report.

J Forensic Leg Med 2019 Feb 29;61:92-96. Epub 2018 Nov 29.

Department of Legal Medicine, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba city, Chiba Prefecture, 260-8670, Japan; Department of Forensic Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.

A 5-year-old boy with a chromosome-9 abnormality and multiple external and visceral malformations was found in cardiopulmonary arrest during a regular visit to the hospital; he did not respond to cardiopulmonary resuscitation and died. An odontoid process fracture and calcification and fibrosis of the muscles around the superior cervical vertebra were observed during the autopsy. Postmortem computed tomography revealed an anterior dislocation of the atlas; odontoid synchondrosis fracture; and delayed, incomplete bony fusion of the odontoid process relative to his age. Read More

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http://dx.doi.org/10.1016/j.jflm.2018.11.011DOI Listing
February 2019
1 Read

The C2 Pedicle Width, Pars Length, and Laminar Thickness in Concurrent Ipsilateral Ponticulus Posticus and High-Riding Vertebral Artery: A Radiological Computed Tomography Scan-Based Study.

Asian Spine J 2018 Dec 7. Epub 2018 Dec 7.

Department of Orthopaedics, P D Hinduja National Hospital & MRC, Mumbai, India.

Study Design: Retrospective radiological study.

Purpose: We aimed to determine the prevalence of ponticulus posticus (PP) and high-riding vertebral artery (HRVA) occurring simultaneously on the same side (PP+HRVA) and in cases of PP+HRVA, to assess C2 radio-anatomical measurements for C2 pars length, pedicle width, and laminar thickness.

Overview Of Literature: PP and HRVA predispose individuals to vertebral artery injuries during atlantoaxial fixation. Read More

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http://asianspinejournal.org/journal/view.php?doi=10.31616/a
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http://dx.doi.org/10.31616/asj.2018.0057DOI Listing
December 2018
1 Read

Posterior Sublaminar Wiring and/or Transarticular Screw Fixation for Reducible Atlantoaxial Instability Secondary to Symptomatic Os Odontoideum: A Neglected Technique?

Asian Spine J 2018 Dec 7. Epub 2018 Dec 7.

Department of Orthopedic Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea.

Study Design: Retrospective case analysis.

Purpose: We retrospectively evaluated the clinical and radiological outcomes of posterior sublaminar wiring (PSLW) and/or transarticular screw fixation (TASF) for reducible atlantoaxial instability (AAI) secondary to os odontoideum.

Overview Of Literature: Limited information is available about the surgical outcomes of symptomatic os odontoideum with AAI. Read More

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http://asianspinejournal.org/journal/view.php?doi=10.31616/a
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http://dx.doi.org/10.31616/asj.2018.0155DOI Listing
December 2018
10 Reads

Posterior temporary C1-2 fixation for 3-part fractures of the axis (odontoid dens and Hangman fractures).

Medicine (Baltimore) 2018 Nov;97(48):e12957

Spine Center, Qilu Hospital of Shandong University.

Case series study.To report the clinical outcomes of posterior temporary C1-2 fixation for 3-part fracture of the axis (Type II odontoid fracture according to Grauer classification combined with Hangman fracture).The 3-part fracture of the axis is rare and the treatment is controversy. Read More

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http://dx.doi.org/10.1097/MD.0000000000012957DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6283111PMC
November 2018

Morphologic variations of the second cervical vertebra in Down syndrome compared with age-matched peers.

J Neurosurg Spine 2018 Nov 1:1-7. Epub 2018 Nov 1.

Departments of1Neurosurgery and.

OBJECTIVEAtlantoaxial instability is an important cause of pain and neurological dysfunction in patients with Down syndrome (DS), frequently requiring instrumented fusion of the upper cervical spine. This study provides a quantitative analysis of C2 morphology in DS patients compared with their peers without DS to identify differences that must be considered for the safe placement of instrumentation.METHODSA retrospective chart review identified age-matched patients with and without DS with a CT scan of the cervical spine. Read More

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http://dx.doi.org/10.3171/2018.8.SPINE18750DOI Listing
November 2018
11 Reads

Irreducible Posterior C1-2 Dislocation with Retrolisthesis of Dens: Hindsight from 10 Cases.

World Neurosurg 2018 Nov 23. Epub 2018 Nov 23.

Department of Neurosurgery, PGIMER, Chandigarh, India. Electronic address:

Objective: Posterior C1-2 dislocation secondary to fracture of the dens or os odontoideum is uncommon. Little is known about posterior dislocations in which close reduction fails, requiring intraoperative maneuvers. The objective of this retrospective study was to analyze clinical presentations, factors causing irreducibility, and nuances in the achievement of intraoperative reduction. Read More

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http://dx.doi.org/10.1016/j.wneu.2018.11.124DOI Listing
November 2018
1 Read

Evaluation of a combined approach to the correction of congenital cervical or cervicothoracic scoliosis.

Spine J 2018 Nov 15. Epub 2018 Nov 15.

Department of Orthopedics, Peking University Third Hospital, 49 North Garden Rd, Haidian District, Beijing 100191, China.

Background Context: An anteroposterior combined approach has been used for the treatment of congenital cervical or cervicothoracic scoliosis. However, its outcomes and surgical risks have not been clarified.

Purpose: We analyzed the characteristics of congenital cervical and cervicothoracic scoliosis and evaluated the outcomes of an anteroposterior combined approach for its treatment. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S15299430183122
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http://dx.doi.org/10.1016/j.spinee.2018.11.006DOI Listing
November 2018
15 Reads

Orthopaedic challenges for mucopolysaccharidoses.

Ital J Pediatr 2018 Nov 16;44(Suppl 2):123. Epub 2018 Nov 16.

Institute for Maternal and Child Health IRCCS Burlo Garofolo, Via dell'Istria, 65, 34137, Trieste, Italy.

Mucopolysaccharidoses (MPS) are a group of diseases characterized by abnormal accumulation of glycosaminoglycans (GAGs). Although there are differences among the various disease types, the osteoarticular system is always involved. The aim of the present study was to establish a framework for MPS-related orthopaedic manifestations and for their treatment. Read More

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https://ijponline.biomedcentral.com/articles/10.1186/s13052-
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http://dx.doi.org/10.1186/s13052-018-0557-yDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6238259PMC
November 2018
5 Reads

An intelligent wearable device for human's cervical vertebra posture monitoring.

Conf Proc IEEE Eng Med Biol Soc 2018 Jul;2018:3280-3283

Long-term abnormal cervical curvature may lead to irreversible pathological changes in the cervical spine and cause serious paralysis. However, early abnormal cervical curvature can be corrected via cervical vertebra posture monitoring and therapeutic intervention. Therefore, for physicians, an effective monitoring system is necessary for detecting the patient's disease as early as possible. Read More

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http://dx.doi.org/10.1109/EMBC.2018.8512896DOI Listing
July 2018
13 Reads

Morphologic Anomalies of Upper Cervical Vertebrae in Swedish Children Born with Nonsyndromic Cleft Lip and/or Palate Compared to Swedish Children without Cleft.

Cleft Palate Craniofac J 2018 Nov 1:1055665618808621. Epub 2018 Nov 1.

2 Department of Orthodontics, University of Athens, Athens, Greece.

Objective:: To examine and compare the prevalence of morphologic anomalies of the upper cervical vertebrae in Swedish children with nonsyndromic cleft lip and/or palate to Swedish children without cleft.

Design:: Retrospective study on lateral cephalograms.

Setting:: Division of Orthodontics, Department of Dental Medicine, Karolinska Institutet, Stockholm, Sweden. Read More

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http://dx.doi.org/10.1177/1055665618808621DOI Listing
November 2018
8 Reads

Atlantoaxial Subluxation Secondary to Unstable Os Odontoideum in a Patient With Arrested Hydrocephalus Due to Congenital Aqueductal Stenosis: A Case Report.

Int J Spine Surg 2018 Oct 15;12(5):549-556. Epub 2018 Oct 15.

Department of Spinal Surgery, Pars Advanced and Minimally Invasive Medical Manners Research Center, Pars Hospital, Tehran, Iran.

Background: In a small percentage of children born with congenital hydrocephalus, enlargement of the head and the presence of ventriculomegaly may halt and ultimately stabilize the condition designated as arrested hydrocephalus. Arrested hydrocephalus in children is typically due to congenital aqueduct stenosis, which can be described appropriately as a stasis existing within the channel between the third and fourth ventricles. Os odontoideum (OO) is an uncommonly occurring pathology at the craniovertebral junction. Read More

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http://ijssurgery.com/lookup/doi/10.14444/5067
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http://dx.doi.org/10.14444/5067DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6198626PMC
October 2018
12 Reads

Retroodontoid Pseudotumor Related to Development of Myelopathy Secondary to Atlantoaxial Instability on Os Odontoideum.

Case Rep Radiol 2018 30;2018:1658129. Epub 2018 Sep 30.

Department of Imaging and Medical Information Sciences, Division of Radiology, Geneva University Hospitals, Geneva, Switzerland.

Retroodontoid pseudotumor (ROP) is a nonneoplasic lesion of unknown etiology, commonly associated with inflammatory conditions, and the term of pannus is usually used. Less frequently, ROP formation can develop with other noninflammatory entities, with atlantoaxial instability as most accepted pathophysiological mechanism for posttraumatic or degenerative ROP. As it can clinically and radiologically mimic a malignant tumor, it is paramount for the radiologist to know this entity. Read More

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https://www.hindawi.com/journals/crira/2018/1658129/
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http://dx.doi.org/10.1155/2018/1658129DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6186371PMC
September 2018
7 Reads

Retro-Odontoid Pseudotumor without Radiologic Atlantoaxial Instability: A Systematic Review.

World Neurosurg 2019 Jan 11;121:100-110. Epub 2018 Oct 11.

San Diego Center for Spinal Disorders, La Jolla, California, USA.

Background: Retro-odontoid pseudotumor (RP) can be caused by several diseases, especially rheumatoid arthritis, and is usually associated with the presence of atlantoaxial instability. On the other hand, a different group of patients have been identified in whom RP is observed without radiologic findings of atlantoaxial instability. The pathophysiology, clinical characteristics, and prognosis of this latter group of patients are not well described in the literature. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S18788750183230
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http://dx.doi.org/10.1016/j.wneu.2018.10.011DOI Listing
January 2019
10 Reads

Coronal Imbalance in Adult Spinal Deformity Following Posterior Spinal Fusion With Instrument: A Related Parameters Analysis.

Spine (Phila Pa 1976) 2018 Oct 11. Epub 2018 Oct 11.

Spine Surgery, The Chinese PLA General Hospital, Beijing, China.

Study Design: A retrospective radiographic study.

Objective: To explore the radiological parameters which correlated to postoperative immediately coronal imbalance in adult spinal deformity (ASD) and to determine whether preoperative coronal imbalance affects postoperative coronal imbalance following posterior multi-level fusion with instruments and osteotomy operation.

Summary Of Background Data: There was paucity of literature paying attention to the postoperative immediately coronal imbalance after operation. Read More

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http://Insights.ovid.com/crossref?an=00007632-900000000-9482
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http://dx.doi.org/10.1097/BRS.0000000000002897DOI Listing
October 2018
2 Reads

A Rare Case of Simultaneous Multifocal Craniospinal Hemangiopericytomas.

Asian J Neurosurg 2018 Jul-Sep;13(3):885-887

Department of Neurosurgery, Fortis Memorial Research Institute, Gurgaon, Haryana, India.

First reported case of simultaneous occurrence of hemangiopericytomas(HCP) at multiple sites of craniospinal axis in a thirty four year male is presented. Patient presented with neck pain for 1 year, and one episode of simple partial seizure involving his left lower limb. He was diagnosed as having HCP in right middle one third parasagittal region, and C4,5 vertebral bodies. Read More

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http://dx.doi.org/10.4103/ajns.AJNS_356_16DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6159097PMC
October 2018
2 Reads

Three-Dimensional Motion Analysis of the 2nd Cervical Spinous Process at End Range Cervical Rotation in Different Scapular Positions Using 3D Digitizer.

Biomed Res Int 2018 26;2018:9835846. Epub 2018 Aug 26.

School of Physiotherapy and Exercise Science, Curtin University, Kent Street, Bentley, Perth, Western Australia 6102, Australia.

Objective: The study used a 3D digitizer to determine three-dimensional motion analysis of the 2nd cervical (C2) spinous process at end range cervical rotation with the scapula in different positions.

Methods: 30 healthy adults participated in this study. Different scapula positions were adopted bilaterally and positioned passively at normal resting, depression, adduction, and abduction. Read More

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http://dx.doi.org/10.1155/2018/9835846DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6129316PMC
January 2019

[Acute headache and neck pain caused by crowned dens syndrome].

Ned Tijdschr Geneeskd 2018 Jul 27;162. Epub 2018 Jul 27.

Canisius Wilhelmina Ziekenhuis, afd. Interne geneeskunde, Nijmegen.

Background: Crowned dens syndrome (CDS) is a rare cause of acute headache and neck pain, which is accompanied by fever and a stiff neck. It is caused by calcium deposits (pseudogout) around the dens axis (C2).

Case Description: A 61-year-old woman, with a history of migraine and of breast cancer 8 years previously, was referred to the accident and emergency department of our hospital with acute headache and neck pain. Read More

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July 2018
14 Reads

C1 Titanium Cables Combined with C2 Pedicle Screw-Rod Fixation for Atlantoaxial Instability Not Suitable for Placement of C1 Screws.

World Neurosurg 2018 Dec 24;120:e453-e456. Epub 2018 Aug 24.

Spine Center, the Department of Orthopedics, the 117th Hospital of PLA, Hangzhou, Zhejiang, China. Electronic address:

Objective: We sought to develop a new posterior fusion technique composed of bilateral C1 titanium cables and C2 pedicle screw-rods for treatment of atlantoaxial instability not suitable for C1 screw placement.

Methods: A study was conducted of 18 patients with atlantoaxial instability who had C1 broken screw trajectory or anatomic anomalies. All patients underwent posterior fixation with bilateral C1 titanium cables and C2 pedicle screws. Read More

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http://dx.doi.org/10.1016/j.wneu.2018.08.103DOI Listing
December 2018
3 Reads

Proposal of a New Safety Margin for Placement of C2 Pedicle Screws on Computed Tomography Angiography.

World Neurosurg 2018 Dec 23;120:e282-e289. Epub 2018 Aug 23.

Department of Neurosurgery, All India Institute of Medical Sciences, New Delhi, India.

Background: Screw diameters currently available are based on the literature available. No data are available for the safety margin available for C2 pedicle screw placement. The objective of this study was to define the average pedicle size available for placing C2 pedicle screws and to quantify the safety margin available in case of lateral breach of screw. Read More

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http://dx.doi.org/10.1016/j.wneu.2018.08.052DOI Listing
December 2018
1 Read

[Biomechanical study of different kinds of internal fixation for the typeⅠ Hangman fracture, type Ⅱ odontoid fracture and the C(2/3) disc injury: a finite-element analysis].

Zhonghua Yi Xue Za Zhi 2018 Aug;98(31):2489-2495

Department of Spinal Surgery, Ningbo No.6 Hospital, Ningbo 315040, China.

To analyze the biomechanical stability of four kinds of internal fixation for the type Ⅰ Hangman fracture, type Ⅱ odontoid fracture and the C(2/3) disc injury by finite element (FE) analysis. Thin-section spiral computed tomography (0.5 mm) was performed on C(1) to C(3) region of cervical vertebra in healthy male volunteers. Read More

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http://dx.doi.org/10.3760/cma.j.issn.0376-2491.2018.31.008DOI Listing
August 2018
6 Reads

Surgical vs. non-surgical management of displaced type-2 odontoid fractures in patients aged 75 years and older: study protocol for a randomised controlled trial.

Trials 2018 Aug 22;19(1):452. Epub 2018 Aug 22.

Department of Surgical Sciences, Uppsala University Hospital, Uppsala, Sweden.

Background: Displaced odontoid fractures in the elderly are treated non-surgically with a cervical collar or surgically with C1-C2 fusion. Due to the paucity of evidence, the treatment decision is often left to the discretion of the expert surgeon.

Methods: The Uppsala Study on Odontoid Fracture Treatment (USOFT) is a multicentre, open-label, randomised controlled superiority trial evaluating the clinical superiority of the surgical treatment of type-2 odontoid fractures, with a 1-year Neck Disability Index (NDI) as the primary endpoint. Read More

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https://trialsjournal.biomedcentral.com/articles/10.1186/s13
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http://dx.doi.org/10.1186/s13063-018-2690-8DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6106890PMC
August 2018
20 Reads

Fracture of the odontoid process in a male individual from the medieval necropolis of Maro (Málaga, Spain).

Int J Paleopathol 2018 09 16;22:158-162. Epub 2018 Feb 16.

Laboratory of Anthropology, Department of Legal Medicine, Toxicology and Physical Anthropology, University of Granada, 18016, Granada, Spain.

Traumatic injuries are commonly reported in paleopathology. However, fractures of the odontoid process in past populations are uncommon and therefore such injuries may be easily overlooked. This paper describes alterations of the first and second cervical vertebrae, the atlas and axis, of a male individual of advanced age from the medieval necropolis of Maro (Málaga, Spain). Read More

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http://dx.doi.org/10.1016/j.ijpp.2018.02.002DOI Listing
September 2018

Neurologic Comorbidities Predict Proximal Junctional Failure in Adult Spinal Deformity.

Spine Deform 2018 Sep - Oct;6(5):576-586

Norton Leatherman Spine Center, 210 East Gray Street, Suite 900, Louisville, KY 40204, USA.

Study Design: Retrospective case-control matched cohort from a single institution.

Objective: To examine the contribution of nonmechanical factors to the incidence of proximal junctional failure (PJF) after adult spinal deformity (ASD) surgery.

Summary Of Background Data: Multiple studies have reported on the prevalence of PJF following surgery for ASD. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S2212134X183001
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http://dx.doi.org/10.1016/j.jspd.2018.01.008DOI Listing
January 2019
17 Reads

An anatomical study of the spinous process of the seventh cervical vertebrae based on the three-dimensional computed tomography reconstruction.

Exp Ther Med 2018 Aug 31;16(2):511-516. Epub 2018 May 31.

Department of Orthopedics, Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, Sichuan 646600, P.R. China.

Palpation of the seventh cervical vertebra (C7) is important for the diagnosis and treatment of neck and chest conditions. However, the spinous process of C7 (C7-SP) displays an anatomical deviation among individuals. The present study aimed to clarify anatomic characteristics of C7-SP by using a three-dimensional (3D) computed tomographic (CT) reconstruction technique. Read More

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http://dx.doi.org/10.3892/etm.2018.6245DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6090245PMC
August 2018
12 Reads
0.940 Impact Factor

Vertebral artery dissection caused by atlantoaxial dislocation: a case report and review of literature.

Childs Nerv Syst 2019 Jan 14;35(1):187-190. Epub 2018 Aug 14.

Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, No. 45, Changchun Street, Xicheng District, Beijing, 100053, China.

Background: Atlantoaxial dislocation (AAD) is the most common craniovertebral junction malformation (CVJm) which are anomalies of the bones and soft tissues surrounding the foramen magnum. It usually leads to neurologic abnormalities because of instability of this mobile area. But vertebral artery dissection (VAD) caused by AAD is uncommon. Read More

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http://dx.doi.org/10.1007/s00381-018-3948-xDOI Listing
January 2019
5 Reads

Type II Fractures in Older Adults: Can They Be Treated Conservatively?: A Single-Center Experience and Review of the Literature.

World Neurosurg 2018 Oct 20;118:e938-e945. Epub 2018 Jul 20.

Division of Neurological Surgery, Azienda Universitaria Integrata di Trieste, Trieste, Trieste, Italy.

Background: Odontoid fractures are the most common acute cervical spinal fractures in the geriatric population. Their rate is increasing along with the rising age of the elderly population. Whereas conservative management with external immobilization is reported as the treatment of choice for type I and III odontoid fractures, there are no clear indications concerning the best treatment for type II fractures. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S18788750183158
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http://dx.doi.org/10.1016/j.wneu.2018.07.105DOI Listing
October 2018
8 Reads

Comparison of clinical and radiological outcomes between modified Gallie graft fusion-wiring technique and posterior cervical screw constructs for Type II odontoid fractures.

Medicine (Baltimore) 2018 Jul;97(29):e11452

Department of Spine Surgery, The Third Hospital of HeBei Medical University, Shijiazhuang, China.

The aim of this study was to compare clinical and radiological outcomes between modified Gallie graft fusion-wiring technique and posterior cervical screw constructs for Type II odontoid fractures, and hope to provide references in decision making and surgical planning for both spinal surgeons and surgically treated patients.This is a retrospective study. By retrieving the medical records from January 2005 to July 2015 in our hospital, 53 Type II odontoid fracture patients were reviewed. Read More

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http://dx.doi.org/10.1097/MD.0000000000011452DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6086456PMC
July 2018
5 Reads

Vertebral Arteriovenous Fistula: A Rare Complication Following Transpedicular Occipitocervical Fixation in a Patient with Atlantoaxial Dislocation.

J Neurol Surg A Cent Eur Neurosurg 2018 Nov 2;79(6):533-535. Epub 2018 Jul 2.

Department of Neurosurgery, Henan Provincial People's Hospital, Zhengzhou, China.

Vertebral arteriovenous fistula (AVF), a complication of a vertebral artery injury (VAI), is a rare but serious complication of upper cervical spine fixation surgery. We report a case of a 59-year-old female patient who had a vertebral AVF following transpedicular occipitocervical fixation surgery. Endovascular embolization of the AVF was successfully performed using ethylene vinyl alcohol. Read More

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http://dx.doi.org/10.1055/s-0038-1655771DOI Listing
November 2018
2 Reads

Analysis of Computed Tomography Scan After Anterior Odontoid Screw Fixation with the Herbert Screw: Is It Effective to Reduce Fracture Gap?

World Neurosurg 2018 Sep 22;117:e631-e636. Epub 2018 Jun 22.

Department of Biochemistry and Cell Biology, Kyungpook National University, School of Medicine, Daegu, Republic of Korea.

Objective: To assess computed tomography scans to evaluate the extent of reduction of fracture displacement and fracture gap after anterior odontoid screw fixation using the Herbert screw.

Methods: Thirty-seven odontoid fractures were reduced and treated by anterior odontoid screw fixation with the Herbert screw. There were 37 patients whose age ranged from 20 to 79 years. Read More

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http://dx.doi.org/10.1016/j.wneu.2018.06.102DOI Listing
September 2018
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Recommendations for Diagnosis and Treatment of Fractures of the Ring of Axis.

Z Orthop Unfall 2018 Dec 22;156(6):662-671. Epub 2018 Jun 22.

Unfall- und Wiederherstellungschirurgie, BG Klinikum Bergmannstrost Halle.

In a consensus process with four sessions in 2017, the working group "upper cervical spine" of the German Society for Orthopaedics and Trauma Surgery (DGOU) formulated "Therapeutic Recommendations for the Diagnosis and Treatment of Upper Cervical Fractures", taking their own experience and the current literature into consideration. The following article describes the recommendations for axis ring fractures (traumatic spondylolysis C2). About 19 to 49% of all cervical spine injuries include the axis vertebra. Read More

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http://dx.doi.org/10.1055/a-0620-9170DOI Listing
December 2018
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Elongated odontoid process in late Holocene skeletal remains from B6 archaeological site, Mendoza, Argentina.

Int J Paleopathol 2018 09 12;22:86-91. Epub 2018 Jun 12.

Grupo de Investigación en Bioarquelogía (GIB), Facultad de Ciencias Sociales, Universidad Nacional del Centro de la Provincia de Buenos Aires, Unidad de Enseñanza Universitaria Quequén, 508 Street No. 881, ZIP 7631, Quequén, Buenos Aires, Argentina.

The odontoid process of the axis can be affected by congenital or acquired pathologies. While abnormalities such as os odontoideum, agenesis, and fractures are reported in archaeological remains, the abnormality of an elongated length of the odontoid process has not been described in the paleopathological literature. The aim of this paper is to evaluate two individuals with elongated odontoid processes from a skeletal assemblage from the B6 archaeological site (Mendoza, Argentina), and to discuss the possible etiologies of the condition, with particular attention given to the relation to trauma and Crowned Dens Syndrome (CDS), a condition characterized by the ossification of ligaments of the odontoid process of the second cervical vertebra. Read More

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http://dx.doi.org/10.1016/j.ijpp.2018.06.001DOI Listing
September 2018
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Torticollis Caused by Nontraumatic Craniovertebral Junction Abnormalities.

J Craniofac Surg 2018 Jul;29(5):1266-1270

The Center for Torticollis, Department of Physical Medicine and Rehabilitation.

Torticollis could be the only symptom and sign of craniovertebral junction (CVJ) abnormality. It could be difficult to identify CVJ abnormality as a cause of torticollis due to their rarity, especially for the subjects with torticollis caused by nontraumatic CVJ abnormalities. There has been no report to focus on nontraumatic CVJ abnormalities as a cause of torticollis. Read More

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http://dx.doi.org/10.1097/SCS.0000000000004441DOI Listing
July 2018
19 Reads

[Pseudoluxation C2-C3 in childhood].

Rev Fac Cien Med Univ Nac Cordoba 2017 09 14;74(3):288-292. Epub 2017 Sep 14.

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Cervical spine injury is rare in children. It is seen primarily in those who sustain significant, severe blunt trauma, occurring in 1 to 2 percent of such cases. The interpretation of cervical spine radiographs and the clinical examination in children may be difficult. Read More

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https://revistas.unc.edu.ar/index.php/med/article/view/12863
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http://dx.doi.org/10.31053/1853.0605.v74.n3.12863DOI Listing
September 2017
3 Reads

New technique for C1-C2 fixation.

Surg Neurol Int 2018 7;9:94. Epub 2018 May 7.

Department of Neurosurgical, Klinikum Dortmund, Dortmund, Germany.

Background: There are several techniques for treating atlantoaxial instability, including the Magerl transarticular screw fixation and the Harms/Goel C1-C2 screw rod techniques. Here, we present a novel technique utilizing a polyaxial screw rod system and a combination of C1 lateral mass and C1-C2 transarticular screws.

Methods: We retrospectively reviewed 14 patients (7 women, 7 men; mean age 62) who underwent surgery for type II odontoid fractures ( = 7), pseudarthrosis after anterior odontoid screw placement ( = 3), Os odontoideum ( = 2), atlantoaxial instability after C3-C5 fusion ( = 1), and craniovertebral rheumatoid arthritis ( = 1). Read More

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http://surgicalneurologyint.com/surgicalint-articles/new-tec
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http://dx.doi.org/10.4103/sni.sni_10_18DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5961278PMC
May 2018
12 Reads

Evaluation of Soft Tissue Hypertrophy at the Retro-Odontoid Space in Patients with Chiari Malformation Type I on Magnetic Resonance Imaging.

World Neurosurg 2018 Aug 2;116:e1129-e1136. Epub 2018 Jun 2.

Department of Neurosurgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan.

Introduction: Chiari malformation type I (CM-I) is a well-known hindbrain disorder in which the cerebellar tonsils protrude through the foramen magnum. The soft tissues, including the transverse ligament and the tectorial membrane at the retro-odontoid space, can compress the cervicomedullary junction if they become hypertrophic.

Methods: Twenty-two symptomatic patients with CM-I (aged 5-19 years) were treated between 2007 and 2017 at our institute. Read More

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http://dx.doi.org/10.1016/j.wneu.2018.05.186DOI Listing
August 2018
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Odontoid Fracture in Patients Age >75 Years Surgically Managed by the Harms Technique: Bone Healing and 1-Year Mortality Rate in 57 Cases.

World Neurosurg 2018 Aug 1;116:e1087-e1091. Epub 2018 Jun 1.

Department of Neurosurgery, University Hospital Center of la Timone, Aix-Marseille University, Marseille, France.

Background: Odontoid fracture is the most common lesion of the cervical spine in persons age >70 years. Management of these fractures has become a public health issue. In this study, we evaluated bone fusion, early complications, and mortality in a cohort of patients age >75 years who underwent surgical management of odontoid fracture using the Harms technique. Read More

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http://dx.doi.org/10.1016/j.wneu.2018.05.172DOI Listing
August 2018
7 Reads

Pure Robotic Surgery for Odontoid Tumor: First Case.

World Neurosurg 2018 Aug 30;116:299-304. Epub 2018 May 30.

Department of Neurosurgery, School of Medicine, Ankara University, Ankara, Turkey.

Background: Transoral robotic surgery has been used successfully to assist many surgical procedures. Here, we report its first use as pure robotic surgery, applied to excise an odontoid metastatic mass.

Case Description: A 48-year-old woman was hospitalized due to a lesion consistent with metastasis that extended to the pharyngeal constrictor muscles and that had completely destroyed the odontoid bone. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S18788750183105
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http://dx.doi.org/10.1016/j.wneu.2018.05.105DOI Listing
August 2018
8 Reads

[Treatment of odontoid fracture combined with lower cervical spinal cord injuries without fracture or dislocation].

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2017 Aug;31(8):982-986

Department of Spinal Surgery, Fuyang City People's Hospital, Fuyang Anhui, 236000, P.R.China.

Objective: To discuss the clinical characteristics, mechanism, and treatment of odontoid fracture combined with lower cervical spinal cord injuries without fracture or dislocation.

Methods: According to the inclusion and exclusion criteria, 7 male patients aged 37-71 years (mean, 51.4 years), suffered from odontoid fractures combined with lower cervical spinal cord injuries without fracture or dislocation were analyzed retrospectively between June 2007 and October 2015. Read More

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http://dx.doi.org/10.7507/1002-1892.201703113DOI Listing
August 2017
3 Reads

Radiological Evaluation of Craniocervical Region in Patients with Basilar Invagination.

Spine (Phila Pa 1976) 2018 Nov;43(22):E1305-E1312

Department of Spinal Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China.

Study Design: A retrospective analysis of collected data.

Objective: Our study aims to present the morphology of cranial-cervical spinal canal in basilar invagination (BI) patients.

Summary Of Background Data: BI is characterized by protrusion of the odontoid process into the foramen magnum (C0), leading to compression of the cervicomedullary junction. Read More

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http://dx.doi.org/10.1097/BRS.0000000000002706DOI Listing
November 2018
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Surgical Treatment for Odontoid Fractures in Patients with Long-Standing Ankylosing Spondylitis: A Report of 3 Cases and Review of the Literature.

World Neurosurg 2018 Aug 17;116:88-93. Epub 2018 May 17.

Spine Center, Department of Orthopaedics, Changzheng Hospital, Second Military Medical University, Shanghai, China. Electronic address:

Background: Ankylosing spondylitis (AS) is classified as a chronic inflammatory seronegative rheumatic arthritis. Patients with AS are more likely to sustain a fracture of the cervical spine compared with the general population. Most fractures occur in the lower cervical spine and manifest at the level of the intervertebral disc. Read More

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http://dx.doi.org/10.1016/j.wneu.2018.05.055DOI Listing
August 2018
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Quality of Life After Combined Endonasal Endoscopic Odontoidectomy and Posterior Suboccipital Decompression and Fusion.

World Neurosurg 2018 Aug 7;116:e571-e576. Epub 2018 Jun 7.

Department of Neurosurgery, Weill Cornell Medical School, New York Presbyterian Hospital, New York, New York, USA; Department of Otolaryngology, Weill Cornell Medical School, New York Presbyterian Hospital, New York, New York, USA; Department of Neuroscience, Weill Cornell Medical School, New York Presbyterian Hospital, New York, New York, USA. Electronic address:

Background: Basilar invagination can result from systemic diseases that can weaken structural integrity of the craniocervical junction. Definitive treatment often requires ventral decompression and posterior decompression and fusion. Endonasal odontoidectomy is a relatively new minimal access procedure; quality of life (QOL) after this procedure has not been reported. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S18788750183099
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http://dx.doi.org/10.1016/j.wneu.2018.05.041DOI Listing
August 2018
11 Reads