Basilar Impression

KANEKO, HIROSHI; Kimura, Kikuo; Kamei, Tamio; Noro, Hisakimi; Kawabuchi, J; Ushio, Akira; Kasahara, Kohji

doi:10.3950/jibiinkoka.68.230

Cited by 2 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A perpendicular line was drawn from the tip of the odontoid to the Chamberlain line in the midsagittal plane. The length was measured and recorded, as well as whether the odontoid tip was above or below the Chamberlain line (Kaneko et al, 1965;Kwong et el., 2011) (Fig. 1.B).…”

Section: Methodsmentioning

confidence: 99%

Evaluation of the Normal Craniocervical Junction Craniometry in 137 Asymptomatic Patients

et al. 2023

View full text Add to dashboard Cite

To our best knowledge, most of the craniometric studies on the normal craniocervical junction (CCJ), are still poorly studied and based on measurements taken from plain radiographs. In this study, the authors conducted a craniometric evaluation of the CCJ in a population without known CCJ abnormalities. The purpose of the study was to assess the normal CCJ craniometry based on measures obtained from CT scans. The authors examined 137 consecutive CCJ CT scans obtained in patients evaluated at their hospital for treatment of non-CCJ conditions between 2018 and 2019. Twelve craniometrical dimensions were conducted, including the relation of the odontoid with the cranial base, the atlantodental interval (ADI), the clivus length, and the clivus-canal angle (CCA).

show abstract

Section: Methodsmentioning

confidence: 99%

Evaluation of the Normal Craniocervical Junction Craniometry in 137 Asymptomatic Patients

et al. 2023

View full text Add to dashboard Cite

show abstract

“…Various diagnostic radiological values are described to define BI as the tip of odontoid located 2 mm or above chamberlain's line. 2,3 Different literature describes threshold to be 5 or 6.6 mm. 4,5 It is important here to distinguish a few confusing terminologies used in literature.…”

Section: Introductionmentioning

confidence: 99%

Surgical outcomes of posterior occipito-cervical decompression and fusion for basilar invagination: A prospective study

Patel

Solanki

Acharya

2021

Journal of Clinical Orthopaedics and Trauma

View full text Add to dashboard Cite

Study design: A Prospective Study.Objective: To assess results of posterior occipito-cervical decompression and fusion operated with intraoperative traction/manipulation and instrumented reduction in cases of Basilar Invagination(BI). Methods: Total 22 patients of 8e65 years with diagnosed BI were operated for posterior occipito-cervical fusion by intra-operative traction/manipulation and instrumented reduction. Fusion was done using autologous bone graft taken from iliac crest. Immediate post-operative, first month and then every 3 months' follow-up examination were done for minimum period of 2 years. Results: 22 patients (10 males,12 females) with mean age of 23.9 years having BI were included. 11 patients had C1 occipitalization, 4 had platybasia and 9 had atlanto-axial dislocation (AAD). 1 patient with os odontoideum with kyphotic deformity expired on 4th postoperative day due to respiratory insufficiency (mortality rate 4.54%). Neurological improvement by at least by one grade according to RANAWAT's and/or NURICK'S scale was observed in 17/21 patients (80.95%). 3 patients remained static and 1 had neuro-worsening. Mean mJOA score of 13.14 improved to 16.24. All had reduction of dens below foramen magnum according to McRae, chamberlain line and Ranawat index. Bone graft fused in all patients as confirmed with CT scan and dynamic X-rays. 1 wound dehiscence and 1 asymptomatic implant loosening were seen on follow-up. Conclusion: Surgical treatment of BI with intra-operative traction/manipulation, instrumented reduction and posterior occipito-cervical fusion can achieve good correction of radiology, functional performance and clinical neurology as well as excellent fusion rates without adverse effects of trans-oral surgery.

show abstract

Basilar Impression

Cited by 2 publications

References 0 publications

Evaluation of the Normal Craniocervical Junction Craniometry in 137 Asymptomatic Patients

Evaluation of the Normal Craniocervical Junction Craniometry in 137 Asymptomatic Patients

Surgical outcomes of posterior occipito-cervical decompression and fusion for basilar invagination: A prospective study

Contact Info

Product

Resources

About