Document Detail

Anatomical study of the relatively safe needling angle of minimally invasive treatment for trigeminal neuralgia.
MedLine Citation:
PMID:  23851892     Owner:  NLM     Status:  In-Data-Review    
Trigeminal neuralgia affects approximately 182 in 100,000 Chinese, and the number keeps increasing these years. The role of surgery for patients with medically refractory trigeminal neuralgia is well established. Computed tomographic images provided by the First Affiliated Hospital of Jilin University were used to reconstruct the 3-dimensional skull models. We measured the positional relationship between oval foramen and trigeminal impression to analyze the relatively safe puncture angle for the internal carotid artery protection. Point O, A, and B are the projection of 3 points on plane C: the center of oval foramen, the medial edge of trigeminal impression, and the lateral edge of trigeminal impression, respectively. The length of OA was 11.02 mm (95% confidence interval [CI], 10.64-11.40 mm), and OB was 13.59 mm (95% CI, 13.20-13.98 mm). Angle study included the angle contained by the median sagittal plane and OA or OB, angle α or β, and the angle contained by OA and OB, angle γ. Angle α was 50.74 degrees (95% CI, 48.60-52.88 degrees). Angle β was 6.62 degrees (95% CI, 4.02-9.22 degrees). Angle γ was 44.12 degrees (95% CI, 41.95-46.29 degrees). So the ideal horizontal angle between the needle axis and the median sagittal plane ranges between angle α and β, 6.62 to 50.74 degrees, and the best puncture angle should be 33.18 degrees. The depth of needling insertion after entering the oval foramen should be less than the minimum length of the 95% CI of OA and OB, 10.64 mm.
Ji Hang Yao; Di Yao; Liang Chen; Min Liu; Yi Qun Zhang; You Qiong Li
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Journal of craniofacial surgery     Volume:  24     ISSN:  1536-3732     ISO Abbreviation:  J Craniofac Surg     Publication Date:  2013 Jul 
Date Detail:
Created Date:  2013-07-15     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9010410     Medline TA:  J Craniofac Surg     Country:  United States    
Other Details:
Languages:  eng     Pagination:  e429-32     Citation Subset:  D    
From the *Department of Clinical Laboratory, The First Affiliated Hospital, Jilin University; †Department of Radiology; ‡Department of Ultrasound, Affiliated Hospital of Changchun University of Traditional Chinese Medicine; and §Department of Anatomy, Norman Bethune Medical School, Jilin University, Changchun, Jilin Province, People's Republic of China.
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