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At least 433 records · Page 24Linked to original sources
PubMed1981

Total alleviation of downbeat nystagmus in basilar impression by transoral removal of the odontoid process.

The presence of primary position downbeat nystagmus indicates disease at the cervicomedullary junction where craniovertebral anomalies are commonly encountered. This paper reports a patient whose only symptom was disabling oscillopsia and downbeat nystagmus secondary to basilar impression and Arnold-Chiari malformation. He experienced total resolution of his symptoms following transoral removal of the odontoid process. In the past it was felt that ocular signs and symptoms did not improve with surgery for craniovertebral anomalies. In light of this report, the ocular symptoms of craniovertebral anomalies may be considered indications in themselves for surgical intervention.

Adult↗
PubMed1980

[Local anomalies and secondary degenerative-dystrophic damage in the craniovertebral region].

Clinical and x-ray studies of patients with focal anomalies of the osteoarticular apparatus of the craniovertebral area demonstrated that half of the cases showed early complications in the form of secondary degenerative-dystrophic lesions. This process is aggravated proportionally to the degree of pronounced interrelation disturbances and overstrain in the craniovertebral area. The secondary degenerative-dystrophic lesions indicate disordered compensation and significantly aggravate the clinical state and working capacity of the patients.

Adolescent↗
PubMed1983

[Syncopes and transitory neurologic manifestations revealing cervico-occipital joint malformations. Evidence of a vascular mechanism].

Two cases of cervico-occipital malformation revealed by syncopes are reported. The first patient has an Arnold-Chiari type I malformation and the second has a basilar impression. The paroxysmal clinical manifestations are triggered by head-turning or exertion. In the second case Doppler vertebral artery recordings show circulatory arrest during a moderate turning motion of the head. A vascular mechanism may explain the occurrence of paroxysmal symptoms in cervico-occipital malformations.

Adolescent↗
PubMed1978

[Bony malformations of the cranio-vertebral junction and its clinical relevance (author's transl)].

A statistical analysis is performed in 86 cases suffering from osseous malformation of the cranio-vertebral junction. The material consists of 71 cases with basilar impression, 8 cases with hypoplasia or absence of the odontoid process, and 7 cases with a congenital atlanto-epistropheal dislocation. The patients are clinically asymptomatic in 23 cases, and are marked by a para-respectively tetraparesis in 28 cases, by bulbar-pontine-cerebellar disorders in 24 cases, and by syringomyelia in 11 cases. A control group is included consisting of 30 cases without neurological symptoms and with a normal radiological finding of the cranio-vertebral region. The following measured values are taken in consideration to perform a statistical calculation using the simple variance analysis: The height of the odontoid process above of McGregor's line, the distance between the back of the odontoid process and the inner limit of the arch of C1, and, concerning the groups with hypoplasia of the odontoid process process and with atlanto-axial dislocation, the narrowing of the spinal canal at the level of C1 dependent on movements of the head. The measured values are referred to the different clinical syndromes and are described and divided according to its statistical significance related to the clinical groups.

Adolescent↗
PubMed1978

[The basilar impression and the Arnold-Chiari malformation. Techno-surgical considerations apropos of 13 cases].

The surgical technic for decompression of the posterior fossa in cases of basilar impression and malformation of Arnold-Chiari mainly based in (1) endotracheal intubation without any flexion of the head, (2) position of the head without anterior flexion during the surgery, (3) plastic of the posterior fossa with dura-mater of cadaver conserved in glicerina, was emploied in 13 patients. The plastic was made to create space at the craniocervical joint in order to avoid cerebrospinal fluid fistula and to restore the integrity of the dura. Infection was not observed.

Adolescent↗
PubMed1984

Basilar impression in children.

Ataxia is a common neurologic sign in childhood. Basilar impression due to bony abnormalities of the craniovertebral junction is an uncommon but readily treatable cause of ataxia in children. Two children who had neck stiffness, ataxia, nystagmus, and corticospinal tract signs are described. Basilar impression was recognized only after specific radiologic studies were performed. Both children were treated surgically with good results.

Ataxia↗