Novel classification and microsurgical anatomy of the basilar artery: a cadaveric study.

IF 1.4 4区医学 Q2 Medicine

Surgical and Radiologic Anatomy Pub Date : 2025-04-02 DOI:10.1007/s00276-025-03612-0

Maria Isabel Ocampo-Navia, Diego Armando Devia, Felipe Marín Navas, Pablo Harker, Roberto Díaz, Miguel Enrique Berbeo Calderón

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引用次数: 0

Abstract

Purpose: The trunk of the BA remains underrepresented in microsurgical studies. This study aims to address this gap by providing a detailed review of the BA's microsurgical anatomy, proposing a novel segmental classification of the artery and the significance of each segment in various surgical pathologies and approaches.

Methods: A total of 20 cadaveric adult brain specimens were meticulously examined under high magnification, following Institutional Review Board approval. The dissection focused on the BA and its branches, with morphometric data collected, including dimensions and anatomical variations.

Results: This study included 20 specimens. A novel classification was proposed base on the blood flow direction, including three segments. The inferior segment extended from the junction of the VA to the origin of the most rostral collateral artery, averaging 3.55 mm in diameter and lengths between 9.0 and 17.1 mm, with 3 to 4 caudal perforators. The middle segment, which ranged from the inferior border of the anterior inferior cerebellar artery (AICA) to the origin of the superior cerebellar artery, measured 3.44 mm in diameter and 15.2 mm in length, featuring 5-6 middle perforating branches. The superior segment ended at the bifurcation of the BA, with an average diameter of 4.2 mm and a length of 3.6 mm. The overall BA length averaged 30.7 mm, with a range of 23.5-38.2 mm.

Conclusion: A comprehensive understanding of the origin, course, branches and segments of the BA is crucial for mitigating vascular complications during both open and endovascular surgical procedures.

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基底动脉的新分类和显微外科解剖：尸体研究。

目的：在显微外科研究中，BA 干的代表性仍然不足。本研究旨在通过详细回顾 BA 的显微外科解剖，提出一种新的动脉节段分类法以及各节段在各种手术病理和方法中的重要性，来弥补这一空白：方法：经机构审查委员会批准后，在高倍放大镜下对 20 具成人尸体脑标本进行了细致检查。解剖重点是 BA 及其分支，并收集形态计量数据，包括尺寸和解剖变异：本研究包括 20 个标本。根据血流方向提出了一种新的分类方法，包括三个节段。下段从 VA 交界处延伸至最喙侧动脉的起源，平均直径为 3.55 毫米，长度在 9.0 至 17.1 毫米之间，有 3 至 4 个尾部穿孔。中段从小脑前下动脉（AICA）的下缘到小脑上动脉的起源，直径为 3.44 毫米，长度为 15.2 毫米，有 5-6 个中穿孔支。上段止于 BA 的分叉处，平均直径为 4.2 毫米，长度为 3.6 毫米。BA 总长度平均为 30.7 毫米，范围为 23.5-38.2 毫米：结论：全面了解 BA 的起源、走向、分支和节段对于在开放手术和血管内手术过程中减少血管并发症至关重要。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Surgical and Radiologic Anatomy Medicine-Pathology and Forensic Medicine

CiteScore

2.40

自引率

14.30%

发文量

期刊介绍： Anatomy is a morphological science which cannot fail to interest the clinician. The practical application of anatomical research to clinical problems necessitates special adaptation and selectivity in choosing from numerous international works. Although there is a tendency to believe that meaningful advances in anatomy are unlikely, constant revision is necessary. Surgical and Radiologic Anatomy, the first international journal of Clinical anatomy has been created in this spirit. Its goal is to serve clinicians, regardless of speciality-physicians, surgeons, radiologists or other specialists-as an indispensable aid with which they can improve their knowledge of anatomy. Each issue includes: Original papers, review articles, articles on the anatomical bases of medical, surgical and radiological techniques, articles of normal radiologic anatomy, brief reviews of anatomical publications of clinical interest. Particular attention is given to high quality illustrations, which are indispensable for a better understanding of anatomical problems. Surgical and Radiologic Anatomy is a journal written by anatomists for clinicians with a special interest in anatomy.