3,884 results match your criteria Os Odontoideum


Superficial anterior atlanto-occipital ligament: Anatomy of a forgotten structure with relevance to craniocervical stability.

J Craniovertebr Junction Spine 2019 Jan-Mar;10(1):42-45

Seattle Science Foundation, Seattle, WA, USA.

Introduction: The superficial anterior atlanto-occipital ligament (SAAOL) is a narrowband located anterior to the anterior atlanto-occipital membrane. Nearly forgotten, it has not been well described in older anatomical textbooks and is missing in the current anatomical literature. As all of the binding structures of the craniocervical junction (CCJ) are important in maintaining stability, this study aims to clarify the anatomy and potential function of the SAAOL. Read More

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http://www.jcvjs.com/text.asp?2019/10/1/42/255720
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http://dx.doi.org/10.4103/jcvjs.JCVJS_110_18DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6469323PMC
April 2019
3 Reads

C1-C2 fusion with absence of C1 posterior arch and presence of C2 high-riding vertebral artery: Is it possible?

J Orthop Surg (Hong Kong) 2019 May-Aug;27(2):2309499019840763

1 Department of Orthopaedic Surgery (NOCERAL), Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia.

The presence of anatomical anomalies such as absence of C1 posterior arch and presence of C2 high-riding vertebral artery may not allow a conventional C1-C2 fusion, and this patient will require occipitocervical fusion. A 62-year-old lady presented with cervical myelopathy. CT scan demonstrated an os odontoideum with C1-C2 dislocation. Read More

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http://dx.doi.org/10.1177/2309499019840763DOI Listing

[One stage temporary atlantoaxial segmental fixation and reduction for Grauer type IIB dens fractures in teenagers].

Zhongguo Gu Shang 2019 Mar;32(3):254-259

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

Objective: To assess the clinical results of one stage temporary atlantoaxial segmental fixation and reduction for Grauer type IIB dens fractures in teenagers.

Methods: From February 2009 to April 2015, 19 teenagers with Grauer type IIB dens fractures not amenable to anteiror screw fixation were enrolled and treated using one stage temporary atlantoaxial segmental fixation and reduction without fusion. There were 14 males and 5 females, aged from 14 to 32 years with an average of (24. Read More

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http://dx.doi.org/10.3969/j.issn.1003-0034.2019.03.012DOI Listing
March 2019
3 Reads

C1-C2 pedicle screw fixation for adolescent with os odontoideum associated atlantoaxial dislocation and a compound reduction technique for irreducible atlantoaxial dislocation.

Chin Med J (Engl) 2019 Mar 22. Epub 2019 Mar 22.

Department of Orthopaedic Surgery, Spine Surgical Center, Changzheng Hospital, Second Military Medical University, Shanghai 200003, China.

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http://dx.doi.org/10.1097/CM9.0000000000000224DOI Listing
March 2019
2 Reads

Axis screws: results and complications of a large case series.

Rev Assoc Med Bras (1992) 2019 Feb;65(2):198-203

Assistant Professor - Neurosurgery Division - University of Campinas (UNICAMP), Campinas-SP, Brasil.

Objective: To present the surgical results of patients who underwent axis screw instrumentation, discussing surgical nuances and complications of the techniques used.

Methods: Retrospective case-series evaluation of patients who underwent spinal surgery with axis instrumentation using screws.

Results: Sixty-five patients were included in this study. Read More

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http://dx.doi.org/10.1590/1806-9282.65.2.198DOI Listing
February 2019

Occipitocervical or C1-C2 fusion using allograft bone in pediatric patients with Down syndrome 8 years of age or younger.

J Pediatr Orthop B 2019 Mar 6. Epub 2019 Mar 6.

Department of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan.

Sufficient internal fixation for occipitocervical (OC) or C1-C2 instability in pediatric patients with Down syndrome is difficult owing to small osseous structures, congenital deformities, and immature ossification. The purpose of this study was to evaluate the clinical outcomes of patients aged 8 years or younger with Down syndrome who underwent OC or C1-C2 fusion using freeze-dried allograft as bone graft substitute. The participants included seven consecutive patients aged 8 years or younger with Down syndrome who were treated for upper cervical disorders with posterior OC or C1-C2 fusion using freeze-dried allografts at our hospital between 2007 and 2016 and had a minimum follow-up of 1 year. Read More

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http://Insights.ovid.com/crossref?an=01202412-900000000-9891
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http://dx.doi.org/10.1097/BPB.0000000000000622DOI Listing
March 2019
5 Reads

Predictors of mortality in the elderly patient with a fracture of the odontoid process.

Bone Joint J 2019 Mar;101-B(3):253-259

Department of Spinal Surgery, Brighton and Sussex University Hospitals NHS Trust, Brighton, UK.

Aims: Fracture of the odontoid process (OP) in the elderly is associated with mortality rates similar to those of hip fracture. The aim of this study was to identify variables that predict mortality in patients with a fracture of the OP, and to assess whether established hip fracture scoring systems such as the Nottingham Hip Fracture Score (NHFS) or Sernbo Score might also be used as predictors of mortality in these patients.

Patients And Methods: We conducted a retrospective review of patients aged 65 and over with an acute fracture of the OP from two hospitals. Read More

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http://dx.doi.org/10.1302/0301-620X.101B3.BJJ-2018-1004.R1DOI Listing
March 2019
3 Reads

Isolated enchondroma of the atlas.

Authors:
Necati Ucler

J Craniovertebr Junction Spine 2018 Oct-Dec;9(4):283-285

Department of Neurosurgery, Education and Research Hospital, Adiyaman University, Adiyaman, Turkey.

Periosteal enchondromas located in the spine are rare. We reported an even more infrequent occurrence of a periosteal enchondroma in the cervical spine of a 19-year-old girl. During the operation, a giant (>8 cm × 5. Read More

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http://dx.doi.org/10.4103/jcvjs.JCVJS_101_18DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6364371PMC
February 2019

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
5 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
2 Reads

Radiological and Surgical Anatomy of Ventral C1-C2 Complex.

Turk Neurosurg 2019 ;29(2):222-228

Dokuz Eylul University, School of Medicine, Department of Anatomy, Izmir, Turkey.

Aim: To evaluate anatomical data of the bony structures during exploration of the C1-C2 complex.

Material And Methods: This study included six formalin-fixed cadaveric head and neck specimens. Radiological images and anatomical measurements included: C1-C2 distance, bony distance between C1 anterior tubercle-nares and superior incisors, height of C1 anterior arch, and height and width of odontoid articular surface. Read More

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http://www.turkishneurosurgery.org.tr/summary_en_doi.php3?do
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http://dx.doi.org/10.5137/1019-5149.JTN.23499-18.1DOI Listing
April 2019
5 Reads

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
8 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
15 Reads
5.723 Impact Factor

Management challenges of traumatic spondylolisthesis of the Axis with an unusual C2-C3 posterior subluxation in a paediatric patient: case report and literature review.

Afr Health Sci 2018 Jun;18(2):458-467

Department of Orthopaedic Surgery, Groote Schuur Hospital, Cape Town, South Africa.

Introduction: Paediatric cervical spine injuries are uncommon. Traumatic spondylolisthesis of the axis (TSA) is commonly encountered in the trauma setting. The management of TSA may be surgical or non-surgical. Read More

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http://dx.doi.org/10.4314/ahs.v18i2.31DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6306986PMC
June 2018
2 Reads

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
12 Reads

Management of Odontoid Cervical Fracture.

World Neurosurg 2019 03 19;123:246-247. Epub 2018 Dec 19.

Section of Neurosurgery, Department of Experimental Biomedicine and Clinical Neurosciences, University of Palermo, Palermo, Italy.

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http://dx.doi.org/10.1016/j.wneu.2018.12.038DOI Listing

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
15 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
5 Reads

The Most Influential Publications in Odontoid Fracture Management.

World Neurosurg 2019 Mar 5;123:41-48. Epub 2018 Dec 5.

Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA.

Objective: Management of odontoid fractures has improved and evolved due to advancing diagnostic guidelines and understanding of long-term outcomes. The aim of this study was to quantify the most frequently cited publications pertaining to odontoid fractures and determine their validity as a tool to practice evidence-based medicine.

Methods: A Clarivate Analytics Web of Science search was used to identify all articles related to odontoid fractures. Read More

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http://dx.doi.org/10.1016/j.wneu.2018.11.205DOI Listing
March 2019
3 Reads

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 2019 Apr 7;13(2):290-295. 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
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6454277PMC
April 2019
3 Reads

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

Asian Spine J 2019 Apr 7;13(2):233-241. 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
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6454275PMC
April 2019
14 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
1 Read

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

J Neurosurg Spine 2018 Nov;30(2):175-181

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
20 Reads

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

World Neurosurg 2019 Mar 23;123:e202-e210. 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
March 2019
1 Read

Splitting of the semispinalis capitis muscle as a less invasive approach for atlantoaxial fusion - A technical note.

J Clin Neurosci 2019 Apr 22;62:260-263. Epub 2018 Nov 22.

Department of Anatomy, Histology and Embryology, Medical University of Innsbruck, Innsbruck, Austria.

Purpose: Atlantoxial fusion with screw rod constructs traditionally requires subperiostal dissection of the C1/C2 muscle attachments, which may lead to postoperative axial neck pain and intraoperative blood loss. We evaluate a potentially less invasive, muscle splitting approach for atlantoaxial fusion in a cadaver model.

Methods: A technical feasibility study was performed in a human cadaveric specimen with standard surgical instruments and an operating microscope. Read More

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http://dx.doi.org/10.1016/j.jocn.2018.11.044DOI Listing
April 2019
3 Reads

Clinical Outcomes of Atlantoaxial Dislocation Combined with High-Riding Vertebral Artery Using C2 Translaminar Screws.

World Neurosurg 2019 Feb 22;122:e1511-e1518. Epub 2018 Nov 22.

Department of Orthopedics, Peking University Third Hospital, Beijing, China.

Objective: Atlantoaxial stabilization procedures in high-riding vertebral artery (HRVA) cases are challenging. C2 translaminar screws are rigid and pose no risk to the vertebral artery. The aim of this study was to present clinical outcomes of atlantoaxial dislocation combined with HRVA using C2 translaminar screws. Read More

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http://dx.doi.org/10.1016/j.wneu.2018.11.092DOI Listing
February 2019
12 Reads

Delayed Recurrent Laryngeal Nerve Palsy Following Anterior Cervical Discectomy and Fusion.

World Neurosurg 2019 Feb 19;122:380-383. Epub 2018 Nov 19.

Department of Neurological Surgery, UCSF Medical Center, University of California, San Francisco, San Francisco, California, USA. Electronic address:

Background: Vocal cord dysfunction resulting from recurrent laryngeal nerve palsy (RLNP) is a known complication following anterior cervical discectomy and fusion. RLNP occurs typically secondary to neurapraxia caused by intraoperative compression or traction on the nerve and less commonly from direct nerve injury intraoperatively in the setting of anterior cervical spine surgery. Patients with RLNP typically present with hoarseness immediately after surgery owing to unilateral vocal cord paralysis. Read More

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http://dx.doi.org/10.1016/j.wneu.2018.11.066DOI Listing
February 2019
33 Reads

Predictors of Failure of Nonoperative Management Following Subaxial Spine Trauma and Creation of Modified Subaxial Injury Classification System.

World Neurosurg 2019 Feb 15;122:e1359-e1364. Epub 2018 Nov 15.

Department of Neurosurgery, Pennsylvania Hospital, University of Pennsylvania, Philadelphia, Pennsylvania, USA.

Background: Subaxial cervical spine injuries may be treated with either nonoperative stabilization or surgical fixation. The subaxial injury classification (SLIC) provides 1 method for suggesting the degree of necessity for surgery. In the current study, we examined if the SLIC score, or other preoperative metrics, can predict failure of nonoperative management. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S18788750183259
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http://dx.doi.org/10.1016/j.wneu.2018.11.048DOI Listing
February 2019
14 Reads

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
16 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
11 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
18 Reads

[Anterior stabilization of the CI-CIII vertebrae after transoral removal of an aggressive aneurysmal bone cyst of the CII vertebra (a case report and literature review)].

Zh Vopr Neirokhir Im N N Burdenko 2018;82(5):111-118

Priorov National Medical Research Center of Traumatology and Orthopedics, Moscow, Russia.

Treatment of patients with atlantoaxial instability caused by various diseases of the skull base and craniovertebral junction combined with ventral compression of the brainstem is a complex issue that is ambiguously resolved in different ways. We present a case of stepped treatment, the most important component of which was successful transoral removal of an aggressive aneurysmal bone cyst of the CII vertebra with anterior CI-CIII segment stabilization using an individual system, which was performed through the same approach.

Clinical Case: A 31-year-old male patient presented with destruction of the CII body and odontoid process affected by an aggressive aneurysmal bone cyst causing disintegration of the CII posterior wall and odontoid process, which clinically manifested by constricted motion and pain in the cervical spine. Read More

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http://dx.doi.org/10.17116/neiro201882051111DOI Listing
April 2019
15 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
13 Reads

[A Case of Retro-Odontoid Pseudotumor in a Very Elderly Individual].

No Shinkei Geka 2018 Oct;46(10):889-893

Department of Neurosurgery, National Defense Medical College.

Retro-odontoid pseudotumors are mainly caused by aging or rheumatoid arthritis. We treated a very elderly patient with retro-odontoid pseudotumor. A 92-year-old man was admitted with the chief complaints of difficulty walking and progressive numbness in the right upper and lower extremities. Read More

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http://dx.doi.org/10.11477/mf.1436203835DOI Listing
October 2018
3 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
17 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
10 Reads

Mortality, complication, and fusion rates of patients with odontoid fracture: the impact of age and comorbidities in 204 cases.

Arch Orthop Trauma Surg 2019 Jan 13;139(1):43-51. Epub 2018 Oct 13.

Service de neurochirurgie C et chirurgie du rachis, Hôpital P Wertheimer, Hospices Civils de Lyon, Université Claude Bernard Lyon 1, 59 boulevard Pinel, 69003, Lyon, France.

Purpose: The French Society of Spine Surgery (SFCR) conducted a prospective epidemiologic multicenter study. The purpose was to investigate mortality, complication, and fusion rates in patients with odontoid fracture, depending on age, comorbidities, fracture type, and treatment.

Methods: Out of 204 patients, 60 were ≤ 70 years and 144 were > 70 years. Read More

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http://dx.doi.org/10.1007/s00402-018-3050-6DOI Listing
January 2019
2 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) 2019 Apr;44(8):550-557

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
April 2019
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
15 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
23 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