Magnetic Resonance Imaging Abnormalities of Neural Axis in Lenke Type 1 Idiopathic Scoliosis

Benli, I. Teoman; Üzümcügil, Onat; Aydın, Erbil; Ateş, Bülent; Gürses, Levent; Hekįmoğlu, Baki

doi:10.1097/01.brs.0000227256.15525.9b

Cited by 30 publications

(31 citation statements)

References 12 publications

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“…In another study, Pahys et al [21] also reported an incidence in infantile IS as high as 13 %. In a study consisting of juvenile IS and AIS patients, the neural axis abnormalities occurred in 14.3 % juvenile IS patients, while no AIS patient was detected to have these abnormalities [16]. It seems that neural axis abnormalities are more frequently detected in young IS patients.…”

Section: Discussionmentioning

confidence: 93%

“…The incidences of neural axis abnormities in presumed IS patients vary from study to study, ranging from 2.9 to 37 % [16,[18][19][20][21]. The heterogeneities of these studies were mainly from four aspects.…”

Section: Discussionmentioning

confidence: 99%

“…Inoue et al evaluated 250 patients who were classified as having ''idiopathic'' scoliosis at first presentation and admitted for spinal surgery, finding that 26 (57 %) of 46 patients with abnormal neurologic signs and 18 (9 %) of 204 patients without abnormal neurologic signs had neural axis abnormalities on MRI [1]. Obviously, abnormal neurologic findings were highly related to neural axis abnormalities [16]. In our study, all the surgically treated patients had no abnormal neurologic findings, and the overall incidence of neural axis abnormalities was 7.8 % in patients with thoracolumbar or lumbar scoliosis.…”

Section: Discussionmentioning

confidence: 99%

“…Neural axis abnormalities were defined as the abnormalities affecting neural axis detected by the MRI, including Chiari, syrinx, tethered cord and so on [16]. The diagnosis of a Chiari 1 malformation was made when the herniation of the tonsils was below the foramen magnum by 5 mm or more [17].…”

Section: Methodsmentioning

confidence: 99%

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Indication for preoperative MRI of neural axis abnormalities in patients with presumed thoracolumbar/lumbar idiopathic scoliosis

Qiao

Zhu

et al. 2012

Eur Spine J

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Section: Discussionmentioning

confidence: 93%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Indication for preoperative MRI of neural axis abnormalities in patients with presumed thoracolumbar/lumbar idiopathic scoliosis

Qiao

Zhu

et al. 2012

Eur Spine J

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“…Neurologic deficit prior to the onset of treatment indicates an increased possibility of additional injury. This situation has been reported to be suggestive of brain stem and intraspinal anomalies [12][13][14][15][16][17][18]. In these patients, who have chronic ischemia and hypoxia of the spinal cord due to the spinal deformities, ''sick spinal cord'' which together with the abnormalities of the spinal cord or the canal, distraction or compression of the spinal cord following corrective maneuvers for the curve may lead to Fig.…”

Section: Clinical Factorsmentioning

confidence: 99%

The risk factors of neurologic deficits of one-stage posterior vertebral column resection for patients with severe and rigid spinal deformities

et al. 2013

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Purpose To determine the risk factors of neurologic deficits during PVCR correction, so as to help improve safety during and after surgery. Methods A consecutive series of 76 patients with severe and rigid spinal deformities who were treated with PVCR at a single institution between October 2004 and July 2011 were included in our study. Of the 76 patients, 37 were male and 39 female, with an average age of 17.5 years (range 10-48 years). There were 52 adolescent patients (with an age \18 years) and 24 adult patients (with an age C18 years). Preoperatively, postoperatively and 6 months after surgery, we performed systemically neurologic function evaluations of each patients through meticulous physical examination. Any new abnormality or deterioration in evaluation of neurologic function than preoperative is reckoned postoperative neurologic deficits. Ten variables that might affect the safety of neurologic deficits during PVCR procedures, including imaging factors, clinical factors and operational factors, were analyzed using univariate analysis. Then the variables with statistical difference were analyzed by using multi-factor unconditional logistic regression analysis. Results No patient in this series had permanent paraplegia and nerve root injury due to operation. Change of neurologic status was found in six patients after surgery. Results of single-factor comparison demonstrated that the following seven variables were statistically different (P \ 0.05): location of apex at main curve (X 3 ), Cobb angle at the main curve at the coronal plane (X 4 ), scoliosis associated with thoracic hyperkyphosis (X 5 ), level of vertebral column resected (X 6 ), number of segmental vessels ligated (X 7 ), preexisting neurologic dysfunction (X 8 ), and associated with intraspinal and brain stem anomalies (X 9 ). The multi-factor unconditional logistic regression analysis revealed that X 8 (OR = 49.322), X 9 (OR = 18.423), X 5 (OR = 11.883), and X 6 (OR = 8.769) were independent and positively correlated with the neurologic deficit. Conclusions Preexisting neurologic dysfunction, associated with intraspinal and brain stem anomalies, scoliosis associated with thoracic hyperkyphosis and level of vertebral column resected are independent risk factors for neurologic deficits during PVCR procedure.

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Asynchronous neuro-osseous growth in adolescent idiopathic scoliosis—MRI-based research

2010

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Adolescent idiopathic scoliosis (AIS) is a common worldwide problem and has been treated for many decades; however, there still remain uncertain areas about this disorder. Its involvement and impact on different parts of the human body remain underestimated due to lack of technology in imaging for objective assessment in the past. The advances in imaging technique and image analysis technology have provided a novel approach for the understanding of the phenotypic presentation of neuro-osseous changes in AIS patients as compared with normal controls. This review is the summary of morphological assessment of the skeletal and nervous systems in girls with AIS based on MRI. Girls with AIS are found to have morphological differences in multiple areas including the vertebral column, spinal cord, skull and brain when compared with age- and sex-matched normal controls. Taken together, the abnormalities in the skeletal system and nervous system of AIS are likely to be inter-related and reflect a systemic process of asynchronous neuro-osseous growth. The current knowledge about the anatomical changes in AIS has important implications with respect to the understanding of fundamental pathomechanical processes involved in the evolution of the scoliotic deformity.

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Magnetic Resonance Imaging Abnormalities of Neural Axis in Lenke Type 1 Idiopathic Scoliosis

Cited by 30 publications

References 12 publications

Indication for preoperative MRI of neural axis abnormalities in patients with presumed thoracolumbar/lumbar idiopathic scoliosis

Indication for preoperative MRI of neural axis abnormalities in patients with presumed thoracolumbar/lumbar idiopathic scoliosis

The risk factors of neurologic deficits of one-stage posterior vertebral column resection for patients with severe and rigid spinal deformities

Asynchronous neuro-osseous growth in adolescent idiopathic scoliosis—MRI-based research

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