Peripheral ameloblastoma. Report of two cases and review of literature.

Nakazawa, Mitsuhiro; Kawamoto, Tomoaki; Higuchi, Kohei; Tsujino, Motohiro; Yui, Shunpei; Sugahara, Toshio; Sakuda, Masayoshi; Ishida, Takeshi

doi:10.5794/jjoms.35.664

Cited by 10 publications

(10 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This technique is mainly promoted in Japanese articles and is based on the perception of a so-called duplicated ventral dura mater. The spinal cord is said to be herniated through a defect in this dura mater duplication (1,3,4,43,51,55,58,68,69,76,77,82,(84)(85)(86). Relief of the strangulated spinal cord can be obtained by resecting the dural ring around the cord, which at the same time results in a widening of the dura defect and also prevents reherniation and restrangulation of the cord.…”

Section: Neurosurgerymentioning

confidence: 99%

“…During the operation, release of the herniated part of the spinal cord and subsequent repositioning of the cord into the normal anatomic position is advocated as essential (10). To prevent reherniation/reincarceration of the spinal cord, enlargement of the ventral dura defect has been promoted by several authors (49,51,58,61,68,76,85,86). Others strongly advocate closure of the defect by direct suturing (15,34,42,86,89) or by insertion of a patch (8, 10, 17, 22, 24, 25, 43-45, 47, 48, 52, 53, 55, 56, 72, 78, 79).…”

Section: Groen Et Almentioning

confidence: 99%

See 1 more Smart Citation

Operative Treatment of Anterior Thoracic Spinal Cord Herniation

Groen

Middel

Meilof

et al. 2009

Operative Neurosurgery

View full text Add to dashboard Cite

Anterior thoracic spinal cord herniation is a rare cause of progressive myelopathy. Much has been speculated about the best operative treatment. However, no evidence in favor of any of the promoted techniques is available to date. Therefore, we decided to analyze treatment procedures and treatment outcomes of anterior thoracic spinal cord herniation to identify those factors that determine postoperative outcome. METHODS: An individual patient data meta-analysis was conducted, focusing on age, gender, vertebral segment of herniation, preoperative neurological status, operative interval, operative findings, operative techniques, intraoperative neurophysiological monitoring, postoperative imaging, neurological outcome and follow-up. Three cases from our own institution were added to the material collected. Bivariate analysis tests and multivariate logistic regression tests were used so as to define which variables were associated with outcome after surgical treatment of anterior thoracic spinal cord herniation. RESULTS: Brown-Séquard syndrome and release of the herniated spinal cord appeared to be strong independent factors, associated with favorable postoperative outcome. Widening of the dura defect is associated with the highest prevalence of postoperative motor function improvement when compared with the application of an anterior dura patch (P Ͻ 0.036). CONCLUSION: Most patients with anterior thoracic spinal cord herniation require operative treatment because of progressive myelopathy. Patients with Brown-Séquard syndrome have a better prognosis with respect to postoperative motor function improvement. In this review, spinal cord release and subsequent widening of the dura defect were associated with the highest prevalence of motor function improvement. D-wave recording can be a very useful tool for the surgeon during operative treatment of this disorder.

show abstract

Section: Neurosurgerymentioning

confidence: 99%

Section: Groen Et Almentioning

confidence: 99%

Operative Treatment of Anterior Thoracic Spinal Cord Herniation

Groen

Middel

Meilof

et al. 2009

Operative Neurosurgery

View full text Add to dashboard Cite

show abstract

“…However, this condition is often misdiagnosed and misinterpreted as a dorsal arachnoid cyst. 10,20,30,38,45 Atrophy of the spinal cord with signal change can also be seen, potentially confusing this condition for astrocytoma, disc herniation, extradural compression, and transverse myelitis. 13,17,46 Misdiagnosis may lead to erroneous surgery for decompression and resection, with no clinical improvement.…”

Section: Diagnostic Imagingmentioning

confidence: 99%

“…Pathological examination of the inner layer of dura mater was performed in 6 cases, showing similar histological findings to that of dorsal dura, without any evidence of inflammation. 25,30,31,39,43,44 Dorsal arachnoid cysts are also associated with ventral spinal cord herniation. Isu et al 20 hypothesized that the pressure of the dorsal arachnoid cyst causes thinning of the ventral dura until a tear occurs.…”

Section: Pathogenesismentioning

confidence: 99%

“…23 Another theory advocated by some authors is congenital duplication of the ventral dura mater, with a defect in the inner layer. 25,30,31,33 Nakazawa et al 30 suggested that a cavity caused by CSF pulsations forms between the layers of the dura, leading to herniation of the spinal cord and strangulation at the neck of the hernia. Opponents of this theory question the mechanism for disruption of this inner dural layer and the reason for fenestration.…”

Section: Pathogenesismentioning

confidence: 99%

See 1 more Smart Citation

Idiopathic ventral spinal cord herniation: a rare presentation of tethered cord

Shin¹,

Krishnaney²

2010

FOC

View full text Add to dashboard Cite

Idiopathic ventral spinal cord herniation is a rare condition that has been increasingly reported in the last decade. The natural history and optimal management have yet to be defined. Therefore, debate exists regarding the pathogenesis and surgical management of this condition. The purpose of this review article is to further educate neurosurgeons about the surgical techniques and outcomes associated with treating this rare and often misdiagnosed condition.

show abstract