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[PMID]:29390372
[Au] Autor:Notani N; Miyazaki M; Yoshiiwa T; Ishihara T; Kanezaki S; Tsumura H
[Ad] Endereço:Department of Orthopaedic Surgery, Faculty of Medicine, Oita University, Oita, Japan.
[Ti] Título:Dynamic paraspinal muscle impingement causing acute hemiplegia after C1 posterior arch laminectomy: A case report.
[So] Source:Medicine (Baltimore);96(50):e9264, 2017 Dec.
[Is] ISSN:1536-5964
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:RATIONALE: Acute neurological deficits following spinal surgery commonly result from epidural hematoma, surgical trauma, vascular compromise, and graft or hardware impingement, with the cause identified by magnetic resonance imaging (MRI). We present a rare case of dynamic paraspinal muscle impingement after C1 posterior arch laminectomy, which was diagnosed by myelography, with no significant findings on MRI. PATIENT CONCERNS: An 81-year-old, severely obese male, was referred to our department for the treatment of vertebral disease of the lumbar spine. The patient presented with bilateral weakness and numbness of the upper extremities and gait disturbances. Based on MRI, a diagnosis of retro-odontoid pseudotumor was made, and C1 posterior arch laminectomy, in combination with C4 partial laminectomy and C5 to C6 laminoplasty, was performed. On postoperative day 3, the patient's neurological status deteriorated, with right upper extremity and right lower extremity weakness increasing with neck extension. Although there was no evidence of epidural hematoma formation on MRI, obstruction of the flow of contrast medium by an external posterior compression in neck extension at the level of C1 was identified by myelography. Revision surgery was performed and local muscle swelling at the surgical site identified with no hematoma formation. Occiput to C3 fixation, with instrumentation, was performed. OUTCOMES: Muscle strength of the right upper extremity and lower extremities recovered postsurgery, and the patient has continued to improve function 3 years after surgery, with no further neurological episodes. LESSONS: Dynamic paraspinal muscle impingement following C1 laminectomy in a muscular man was diagnosed by myelography, with no significant findings on standard MRI. CONCLUSION: The possibility of dynamic paraspinal muscle impingement should be considered in patients developing acute, progressive, neurological deficits after posterior cervical decompression, with myelography being the imaging method of choice for diagnosis.
[Mh] Termos MeSH primário: Vértebras Cervicais/cirurgia
Hemiplegia/etiologia
Processo Odontoide/cirurgia
Músculos Paraespinais/cirurgia
Complicações Pós-Operatórias/etiologia
Doenças da Medula Espinal/diagnóstico
Doenças da Medula Espinal/cirurgia
[Mh] Termos MeSH secundário: Idoso de 80 Anos ou mais
Seres Humanos
Laminectomia
Imagem por Ressonância Magnética
Masculino
Mielografia
Procedimentos Neurocirúrgicos
Recuperação de Função Fisiológica
[Pt] Tipo de publicação:CASE REPORTS; JOURNAL ARTICLE
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180301
[Lr] Data última revisão:
180301
[Sb] Subgrupo de revista:AIM; IM
[Da] Data de entrada para processamento:180203
[St] Status:MEDLINE
[do] DOI:10.1097/MD.0000000000009264


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[PMID]:29187946
[Au] Autor:Aldahak N; Richter B; Bemora JS; Keller JT; Froelich S; Abdel Aziz KM
[Ad] Endereço:Department of Neurosurgery, Allegheny General Hospital, Drexel University College of Medicine, 420 East North Avenue, Suite 302, Pittsburgh, PA, 15212, USA.
[Ti] Título:The endoscopic endonasal approach to cranio-cervical junction: the complete panel.
[So] Source:Pan Afr Med J;27:277, 2017.
[Is] ISSN:1937-8688
[Cp] País de publicação:Uganda
[La] Idioma:eng
[Ab] Resumo:We aim to establish a complete summary on the Endoscopic Endonasal Approach (EEA) to Cranio Cervical Junction (CCJ): evolution since first description, criteria to predict the feasibility and limitations, anatomical landmarks, indications and biomechanical evaluation after performing the approach. A comprehensive literature search to identify all available literature published between March 2002 and June 2015, the articles were divided into four categories according to their main purpose: 1- surgical technique, 2- anatomical landmarks and limitations, 3- literature reviews to identify main indications, 4- biomechanical studies. Thereafter, we demonstrate the approach step-by-step, using 1 fresh and 3 silicon injected embalmed cadaveric specimen heads. 61 articles and one poster were identified. The approach was first described on cadaveric study in 2002, and firstly used to perform odontoidectomy in 2005. The main indication is odontoid rheumatoid pannus and basilar invagination. The nasopalatine line (NPL), the superior nostril-hard palate Line (SN-HP), the naso-axial line (NAxL), the rhinopalatine Line (RPL) and other methods were described to predict the anatomical feasibility of the approach. The craniocervical fusion is potentially unnecessary after removal of < 75% of one occipital condyle. A recent cadaveric study stated the possibility of C1-C2 fusion via EEA. This paper reviews all available clinical and anatomical studies on the EEA to CCJ. The approach marked a significant evolution since its first description in 2002. Because of its lesser complications compared to the transoral approach, the EEA became when feasible, the approach of choice to the ventral CCJ.
[Mh] Termos MeSH primário: Endoscopia/métodos
Nariz
Fusão Vertebral/métodos
[Mh] Termos MeSH secundário: Vértebras Cervicais/cirurgia
Seres Humanos
Processo Odontoide/cirurgia
[Pt] Tipo de publicação:JOURNAL ARTICLE; REVIEW
[Em] Mês de entrada:1712
[Cu] Atualização por classe:171219
[Lr] Data última revisão:
171219
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171201
[St] Status:MEDLINE
[do] DOI:10.11604/pamj.2017.27.277.12220


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[PMID]:29095313
[Au] Autor:Zhu C; Wang L; Liu H; Song Y; Liu L; Li T; Gong Q
[Ad] Endereço:Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
[Ti] Título:Treatment of type II odontoid fracture with a novel technique: Titanium cable-dragged reduction and cantilever-beam internal fixation.
[So] Source:Medicine (Baltimore);96(44):e8521, 2017 Nov.
[Is] ISSN:1536-5964
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Surgical methods for type II odontoid fracture can be classified into 2 main groups: anterior or posterior approach. A more effective way to achieve bone fusion with the lowest possible surgical risk is needed. Therefore, the aim of our study was to describe and evaluate a novel technique, cable-dragged reduction/cantilever beam internal fixation for the treatment of type II odontoid fracture.This was a retrospective study enrolled 34 patients underwent posterior cable-dragged reduction/cantilever-beam internal fixation surgery. Medical records, rates of reduction, the location of the instrumentation and fracture healing during follow-up were analyzed. Once fracture healing was obtained, instrumentation was removed. Neck pain (scored using a visual analog scale [VAS]), neck stiffness, patient satisfaction, and neck disability index (NDI) were recorded before and after removing the instrumentation during follow-up.The mean duration of follow up was 22.8 ±â€Š5.3 months. There was no iatrogenic damage to nerves or blood vessels. Radiographic evaluation showed complete reduction in the 20 patients with fracture displacement and satisfactory fracture healing in all 34 cases. Titanium cable breakage was observed in 4 patients after fracture healing. After removal of instrumentation, significant improvements were seen in neck-pain VAS score, neck stiffness, patient satisfaction, and NDI (all P < .01).Posterior cable-dragged reduction/cantilever-beam internal fixation was an optimal salvage maneuver to conventional surgical methods such as anterior screw fixation and C1-C2 screw-rod system. The operative difficulty and incidence of nerve and vascular injury were reduced. Its major disadvantage is the exposure and screw-setting at C3, which is left intact in traditional surgery, and it is suitable only for patients with intact C1 posterior arches.
[Mh] Termos MeSH primário: Redução Fechada/instrumentação
Fixação Interna de Fraturas/instrumentação
Processo Odontoide/lesões
Terapia de Salvação/instrumentação
Fraturas da Coluna Vertebral/cirurgia
[Mh] Termos MeSH secundário: Adulto
Fios Ortopédicos
Redução Fechada/métodos
Feminino
Fixação Interna de Fraturas/métodos
Consolidação da Fratura
Seres Humanos
Masculino
Meia-Idade
Cervicalgia/etiologia
Cervicalgia/cirurgia
Processo Odontoide/cirurgia
Medição da Dor
Estudos Retrospectivos
Terapia de Salvação/métodos
Titânio
Resultado do Tratamento
Adulto Jovem
[Pt] Tipo de publicação:EVALUATION STUDIES; JOURNAL ARTICLE
[Nm] Nome de substância:
D1JT611TNE (Titanium)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171109
[Lr] Data última revisão:
171109
[Sb] Subgrupo de revista:AIM; IM
[Da] Data de entrada para processamento:171103
[St] Status:MEDLINE
[do] DOI:10.1097/MD.0000000000008521


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[PMID]:28799840
[Au] Autor:Martin JE; Bookland M; Moote D; Cebulla C
[Ad] Endereço:Division of Neurosurgery, Department of Surgery, Connecticut Children's Medical Center; and.
[Ti] Título:Standardized method for the measurement of Grabb's line and clival-canal angle.
[So] Source:J Neurosurg Pediatr;20(4):352-356, 2017 Oct.
[Is] ISSN:1933-0715
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:OBJECTIVE Grabb's line-the perpendicular distance from the basion-C2 line (pB-C2)-is a widely used radiographic measurement with significant clinical implications in patients with a complex Chiari malformation. Rigorous demonstration of the reproducibility of this measurement has not previously been reported. The authors report a standardized measurement technique with excellent inter- and intrarater reliability on T1-weighted sagittal MRI. METHODS The authors developed a standardized measurement technique that included specifications of midline slice selection, landmark and reference line definitions, and measurement technique on T1-weighted sagittal images. Twenty MR images were reviewed by 2 pediatric neurosurgeons, 1 pediatric radiologist, and 1 undergraduate student. Measurements were performed using the technique specified on 2 separate occasions. Intrarater and interrater reliabilities were calculated using the intraclass correlation coefficient. RESULTS A combined interrater reliability of 0.879 was achieved for the pB-C2, and 0.916 for the clival-canal angle, another measure of interest in patients with complex Chiari malformations. Intrarater reliability for these measurements exceeded 0.858 for all 4 reviewers. CONCLUSIONS Grabb's line-the pB-C2-can be measured with excellent reliability using a standardized measurement protocol. Individual clinicians and collaborative databases should consider using validated measurement techniques to guide clinical decision making in patients with craniocervical junction pathology.
[Mh] Termos MeSH primário: Malformação de Arnold-Chiari/diagnóstico por imagem
Fossa Craniana Posterior/diagnóstico por imagem
Imagem por Ressonância Magnética/métodos
Imagem por Ressonância Magnética/normas
Canal Vertebral/diagnóstico por imagem
[Mh] Termos MeSH secundário: Malformação de Arnold-Chiari/cirurgia
Vértebras Cervicais/diagnóstico por imagem
Fossa Craniana Posterior/cirurgia
Seres Humanos
Neurocirurgiões/psicologia
Variações Dependentes do Observador
Processo Odontoide/diagnóstico por imagem
Processo Odontoide/cirurgia
Valores de Referência
Canal Vertebral/cirurgia
Estudantes/psicologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171006
[Lr] Data última revisão:
171006
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170812
[St] Status:MEDLINE
[do] DOI:10.3171/2017.5.PEDS17181


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[PMID]:28522382
[Au] Autor:Lopes A; Andrade A; Silva I; Paiva W; Brock R; Teixeira M
[Ad] Endereço:Hospital das Clínicas FMUSP, São Paulo, Brazil. Electronic address: arthurjlopes@gmail.com.
[Ti] Título:Brain Abscess After Halo Fixation for the Cervical Spine.
[So] Source:World Neurosurg;104:1047.e7-1047.e11, 2017 Aug.
[Is] ISSN:1878-8769
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Halo fixation is one of the possible treatments for cervical spine fractures. However, improper use of these devices may lead to many complications, such as pin loosening, halo dislocation, pin site infection, and intradural penetration. CASE DESCRIPTION: We report the case of a 43-year-old man who first presented with a seizure and an altered level of consciousness 5 months after halo-vest placement for an odontoid fracture. Brain imaging showed a brain abscess, under the previous left parietal pin. The patient underwent abscess drainage and antibiotics were administered for 12 weeks. On hospital discharge, he presented with only mild impairments. CONCLUSIONS: Misapplication of halo fixation devices may lead to serious complications, including intracranial pin penetration and brain abscesses. Proper use of the recommended technique may decrease the risk for complications related to the procedure.
[Mh] Termos MeSH primário: Antibacterianos/uso terapêutico
Abscesso Encefálico/terapia
Drenagem
Fixadores Externos/efeitos adversos
Processo Odontoide/lesões
Complicações Pós-Operatórias/terapia
Infecções Relacionadas à Prótese/terapia
Fraturas da Coluna Vertebral/cirurgia
Infecções Estafilocócicas/terapia
[Mh] Termos MeSH secundário: Adulto
Abscesso Encefálico/diagnóstico por imagem
Abscesso Encefálico/etiologia
Fixação de Fratura
Seres Humanos
Imagem por Ressonância Magnética
Masculino
Complicações Pós-Operatórias/diagnóstico por imagem
Complicações Pós-Operatórias/etiologia
Infecções Relacionadas à Prótese/diagnóstico por imagem
Infecções Relacionadas à Prótese/etiologia
Convulsões/etiologia
Infecções Estafilocócicas/diagnóstico por imagem
Infecções Estafilocócicas/etiologia
Tomografia Computadorizada por Raios X
[Pt] Tipo de publicação:CASE REPORTS; JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Anti-Bacterial Agents)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170925
[Lr] Data última revisão:
170925
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170520
[St] Status:MEDLINE


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[PMID]:28512042
[Au] Autor:Alonso F; Iwanaga J; Chapman JR; Oskouian RJ; Tubbs RS
[Ad] Endereço:Swedish Neuroscience Institute, Seattle, Washington, USA; Department of Neurosurgery, University Hospitals of Cleveland, Cleveland, Ohio, USA. Electronic address: fea4@case.edu.
[Ti] Título:The Corona Dentis: Description of an Anatomic Variant with Technical Implications for Anterior Odontoid Screw Placement.
[So] Source:World Neurosurg;104:132-135, 2017 Aug.
[Is] ISSN:1878-8769
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Type 2 odontoid fractures are the most common cervical fractures among the elderly. Neurologic deficit is usually caused by myelopathy as a result of posterior dens migration. Direct anterior screw placement provides stabilization and can preserve C1-C2 movement. The presence of a bony excrescence on the anterior superior tip of the dens may lead to placement of a screw of incorrect length. METHODS: Twenty C2 dry specimens were examined for the presence of a corona dentis, which is a bony excrescence in the coronal plane near the apex of the dens. When identified, measurements of the corona dentis were performed using calipers and a ruler. In addition, anteroposterior (AP) and lateral fluoroscopy was performed on all specimens found to have a corona dentis. RESULTS: A corona dentis was found on 20% of our C2 specimens and had an average width of 9 mm and an average height of 4.5 mm. The average width of the dens did not vary as the normal tip of the dens transitioned into the coronae. In no specimen did the corona dentis seem to be composed of trabecular bone and it was seen as a superior projection of cortical bone on fluoroscopy. On fluoroscopy, the corona dentis could be identified on a true AP projection. In angulated AP views, fluoroscopic images overestimated the length of the corona dentis. CONCLUSIONS: We describe a new entity termed the corona dentis because of its crownlike feature. It is a superior cortical bone protrusion and should be noted as a variant of the dens during anterior odontoid screw placement. Its propensity to increase the height of the dens markedly can lead to higher rates of neurologic deficits during type 2 odontoid fractures if not appreciated. A true AP view is critical for correct screw size placement.
[Mh] Termos MeSH primário: Parafusos Ósseos
Fixação Interna de Fraturas/instrumentação
Fixação Interna de Fraturas/métodos
Processo Odontoide/anormalidades
Processo Odontoide/cirurgia
Fraturas da Coluna Vertebral/patologia
Fraturas da Coluna Vertebral/cirurgia
[Mh] Termos MeSH secundário: Cadáver
Seres Humanos
Processo Odontoide/patologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170925
[Lr] Data última revisão:
170925
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170518
[St] Status:MEDLINE


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[PMID]:28422889
[Au] Autor:Liu N; Tian L; Jiang RX; Xu C; Shi L; Lei W; Zhang Y
[Ad] Endereço:aDepartment of Orthopedics, Xijing Hospital, The Fourth Military Medical University bDepartment of Anesthesiology, Xijing Hospital, The Fourth Military Medical University, Xi'an cDepartment of Orthopedics, 62th Hospital of PLA, Puer, China.
[Ti] Título:An in vitro biomechanical evaluation of an expansive double-threaded bi-directional compression screw for fixation of type II odontoid process fractures: A SQUIRE-compliant article.
[So] Source:Medicine (Baltimore);96(16):e6720, 2017 Apr.
[Is] ISSN:1536-5964
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Odontoid process fracture accounts for 5% to 15% of all cervical spine injuries, and the rate is higher among elderly people. The anterior cannulated screw fixation has been widely used in odontoid process fracture, but the fixation strength may still be limited under some circumstances. This study aims to investigate the biomechanical fixation strength of expansive double-threaded bi-directional compression screw (EDBCS) compared with cannulated lag screw (CLS) and improved Herbert screw (IHS) for fixation of type II odontoid process fracture.Thirty fresh cadaveric C2 vertebrae specimens were harvested and randomly divided into groups A, B, and C. A type II fracture model was simulated by osteotomy. Then the specimens of the 3 groups were stabilized with a single CLS, IHS, or EDBCS, respectively. Each specimen was tested in torsion from 0° to 1.25° for 75 s in each of 5 cycles clockwise and 5 cycles anticlockwise. Shear and tensile forces were applied at the anterior-to-posterior and proximal-to-distal directions, respectively, both to a maximum load of 45 N and at a speed of 1 mm/min.The mean torsional stiffness was 0.309 N m/deg for IHS and 0.389 N m/deg for EDBCS, which were significantly greater compared with CLS, respectively (0.169 N m/deg) (P < .05 and P < .05). The mean shear stiffness for the EDBCS was 238 N/mm, which was significantly greater than CLS (150 N/mm) and IHS (132 N/mm) (P < .05 and P < .05). All 3 screws only partly restored tensile stiffness, but not significantly.Fixation with the EDBCS can improve the biomechanical strength for odontoid process fracture compared with CLS and IHS, especially in terms of torsional and shear stiffness.
[Mh] Termos MeSH primário: Parafusos Ósseos
Fixação Interna de Fraturas/métodos
Processo Odontoide/cirurgia
Fraturas da Coluna Vertebral/cirurgia
[Mh] Termos MeSH secundário: Fenômenos Biomecânicos
Feminino
Seres Humanos
Masculino
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1705
[Cu] Atualização por classe:170509
[Lr] Data última revisão:
170509
[Sb] Subgrupo de revista:AIM; IM
[Da] Data de entrada para processamento:170420
[St] Status:MEDLINE
[do] DOI:10.1097/MD.0000000000006720


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[PMID]:28419881
[Au] Autor:Ryu JI; Han MH; Cheong JH; Kim JM; Kim CH; Chun HJ; Bak KH
[Ad] Endereço:Department of Neurosurgery, Hanyang University Guri Hospital, Gyonggi-do, Republic of Korea.
[Ti] Título:The Effects of Clinical Factors and Retro-Odontoid Soft Tissue Thickness on Atlantoaxial Instability in Patients with Rheumatoid Arthritis.
[So] Source:World Neurosurg;103:364-370, 2017 Jul.
[Is] ISSN:1878-8769
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Rheumatoid arthritis (RA) is an autoimmune disease that often occurs in the atlantoaxial segment of the cervical spine and results in instability that can cause severe pain and neurologic symptoms. Thickening of soft tissue posterior to the odontoid process of the atlantoaxial segment is referred to as retro-odontoid soft tissue (ROST) thickness or pseudotumor. The mechanism of ROST thickness is still unknown. METHODS: Among patients diagnosed with RA, those with cervical radiographs and magnetic resonance imaging records were selected for investigation of their clinical symptoms, laboratory findings, radiologic evaluation, and RA medication history. RESULTS: A total of 199 patients were selected and divided into lower and upper median groups according to the ROST thickness value. In patients with RA, the median ROST thickness value was 2.3 mm (interquartile range, 1.4-3.4). The median value of the anterior atlanto-dens interval (ADI) was 2.4 mm, with a significant difference being observed between the lower and upper median ROST thickness groups (P = 0.001). Multivariable linear regression analysis revealed a correlation between Steinbrocker stage and the positivity of rheumatoid factor. For each unit increase in the Steinbrocker stage, the ROST thickness increased by 0.35 mm (ß, -0.349; 95% confidence interval -0.643 to -0.055; P = 0.020). For every 1-mm increase in the ADI, ROST thickness decreased by 0.16 mm (ß, -0.163; 95% confidence interval -0.264 to -0.062; P = 0.002). CONCLUSIONS: This study showed a statistical correlation between ROST thickness and ADI related to biomechanical changes in the dynamic atlantoaxial segment, thereby suggesting the value of a prospective study.
[Mh] Termos MeSH primário: Artrite Reumatoide/complicações
Articulação Atlantoaxial/patologia
Granuloma de Células Plasmáticas/patologia
Instabilidade Articular/etiologia
[Mh] Termos MeSH secundário: Artrite Reumatoide/patologia
Fenômenos Biomecânicos/fisiologia
Tecido Conjuntivo/patologia
Feminino
Seres Humanos
Instabilidade Articular/patologia
Imagem por Ressonância Magnética
Masculino
Meia-Idade
Processo Odontoide/patologia
Radiografia
Amplitude de Movimento Articular/fisiologia
Estudos Retrospectivos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170925
[Lr] Data última revisão:
170925
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170419
[St] Status:MEDLINE


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[PMID]:28399555
[Au] Autor:Song R; Fan D; Wu H; Zhang Z; Zhao L; Liu Y; Liao W; Tan H; Wang L; Wang W
[Ad] Endereço:Department of Orthopedic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China.
[Ti] Título:Management of Unusual Atlantoaxial Dislocation.
[So] Source:Spine (Phila Pa 1976);42(8):573-577, 2017 Apr 15.
[Is] ISSN:1528-1159
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:STUDY DESIGN: A case report and review of the literature. OBJECTIVE: The aim of this study was to describe the successful treatment of one posterior atlantoaxial dislocation without fracture and to review the relevant literature. SUMMARY OF BACKGROUND DATA: Posterior atlantoaxial dislocation without fracture of the odontoid process is extremely rare. Management of these patients is still unknown. METHODS: A posterior atlantoaxial dislocation without fracture in a 58-year-old man with incomplete quadriplegia was treated surgically with posterior atlantoaxial pedicle screws internal fixation and fusion after closed reduction. The images, treatment, and related literature are reviewed. RESULTS: The patient had complete recovery of neurologic deficit and bony fusion of the atlantoaxial joint was identified on the follow-up computed tomography taken 3 months after posterior fixation. To our knowledge, no case of posterior atlantoaxial dislocation with neurologic deficit has been previously reported in English medical literature. CONCLUSION: We described a rare case of posterior atlantoaxial dislocation with neurologic deficit. Treatment procedure of posterior atlantoaxial dislocation was presented. LEVEL OF EVIDENCE: 5.
[Mh] Termos MeSH primário: Articulação Atlantoaxial/lesões
Luxações Articulares/cirurgia
Quadriplegia/cirurgia
Fusão Vertebral
Traumatismos da Coluna Vertebral/cirurgia
[Mh] Termos MeSH secundário: Articulação Atlantoaxial/cirurgia
Fixação Interna de Fraturas
Seres Humanos
Luxações Articulares/complicações
Masculino
Meia-Idade
Processo Odontoide
Parafusos Pediculares
Quadriplegia/etiologia
Recuperação de Função Fisiológica
Traumatismos da Coluna Vertebral/complicações
[Pt] Tipo de publicação:CASE REPORTS; JOURNAL ARTICLE; REVIEW
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171017
[Lr] Data última revisão:
171017
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170412
[St] Status:MEDLINE
[do] DOI:10.1097/BRS.0000000000001872


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[PMID]:28344179
[Au] Autor:Sardi JP; Iwanaga J; Oskouian RJ; Tubbs RS
[Ad] Endereço:Department of Neurological Surgery, Hospital Universitario San Ignacio, Bogotá, Colombia. Electronic address: jsardi2@gmail.com.
[Ti] Título:First Gross Anatomic Findings of an Os Odontoideum.
[So] Source:World Neurosurg;101:813.e1-813.e3, 2017 May.
[Is] ISSN:1878-8769
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Os odontoideum is an uncommon abnormality of the craniovertebral junction where the tip of the odontoid process lacks continuity with the body of C2. The clinical presentation is variable, but severe neurologic impairment can result. CASE DESCRIPTION: We report the gross and radiologic findings of a cadaver found to harbor an os odontoideum. CONCLUSIONS: To our knowledge, there are no cadaveric reports in the literature regarding an os odontoideum. Such a case allows a rare window into the anatomy and relationships of this pathologic structure.
[Mh] Termos MeSH primário: Processo Odontoide/anormalidades
Processo Odontoide/patologia
Doenças da Coluna Vertebral/patologia
[Mh] Termos MeSH secundário: Idoso
Articulação Atlantoaxial/anormalidades
Articulação Atlantoaxial/patologia
Cadáver
Vértebras Cervicais/anormalidades
Vértebras Cervicais/patologia
Seres Humanos
Masculino
[Pt] Tipo de publicação:CASE REPORTS; JOURNAL ARTICLE
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170922
[Lr] Data última revisão:
170922
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170328
[St] Status:MEDLINE



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