The posterior petroclinoid fold and petroclival ligament ossification patterns.

IF 1.4 4区医学 Q2 Medicine Surgical and Radiologic Anatomy Pub Date : 2025-01-03 DOI:10.1007/s00276-024-03563-y

George Triantafyllou, Panagiotis Papadopoulos-Manolarakis, George Tsakotos, Maria Piagkou

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Abstract

Background: The skull base ligaments have been extensively studied in the literature due to their clinical and surgical significance. The posterior petroclinoid fold (PPCNF) and petroclival ligament (PCVL) are two adjacent structures that have barely been studied and are frequently confused. The present study uses an innovative classification system to investigate the PPCNF and PCVL ossification patterns.

Materials: An archive of 164 computed tomography (CT) scans (328 sides) was evaluated. The sexes were distributed as follows: 86 females and 78 males. The mean age was 47.78 ± 15.64 years old. The ossification patterns were classified as follows: Type 0 (no ossification), Type 1 (incomplete ossification), Type 2 (complete ossification). The incomplete ossification was further classified as subtype 1a (ossification from the clival region), subtype 1b (ossification from the petrous region), and subtype 1c (ossification from both regions).

Results: No PPCNF ossification was observed in 72.6% (238/328 sides). Incomplete PPCNF ossification was identified in 25.8% (85/328 sides), and complete ossification in 1.5% (5/328 sides). A male predominance was determined for the PPCNF ossification. No PCVL ossification was observed in 85.4% (280/328 sides). Incomplete PCVL ossification was observed in 8.2% (27/328 sides) and complete ossification in 6.4% (21/328 sides). The age affected the PCVL ossification, with the older patients presenting with ossification. Simultaneous absence of PPCNF and PCVL ossification was observed in 215 sides (65.5%). The coexistence of incomplete PPCNF and PCVL ossified variants was identified in 13 sides (4%). Concomitant complete PPCNF and PCVL ossified variants were detected in 2 sides (0.6%).

Conclusions: The current study presents a detailed description of the PPCNF and PCVL. Knowledge of both structures' ossification is important for anatomists, radiologists, and clinicians due to their close relationship with neurovascular structures.

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后岩斜襞和岩斜韧带骨化模式。

背景：颅底韧带由于其临床和外科意义，在文献中被广泛研究。岩斜后襞（PPCNF）和岩斜韧带（PCVL）是两个相邻的结构，很少被研究并且经常被混淆。本研究使用一种创新的分类系统来研究PPCNF和PCVL的骨化模式。资料：对164个CT扫描（328侧）的档案进行评估。性别分布：女性86人，男性78人。平均年龄47.78±15.64岁。骨化模式分为：0型（无骨化）、1型（不完全骨化）、2型（完全骨化）。不完全骨化进一步分为1a亚型（来自斜坡区骨化）、1b亚型（来自岩区骨化）和1c亚型（来自两个区域的骨化）。结果：72.6%（238/328侧）未见PPCNF骨化。25.8%（85/328侧）的PPCNF不完全骨化，1.5%（5/328侧）的PPCNF完全骨化。确定了PPCNF骨化的男性优势。85.4%（280/328侧）未见PCVL骨化。PCVL不完全骨化占8.2%（27/328侧），完全骨化占6.4%（21/328侧）。年龄影响PCVL的骨化，以年龄大的患者表现为骨化。215侧（65.5%）出现PPCNF和PCVL同时缺失骨化。在13侧（4%）发现不完全PPCNF和PCVL骨化变异共存。在2侧（0.6%）检测到完全性PPCNF和PCVL骨化变异。结论：目前的研究对PPCNF和PCVL进行了详细的描述。这两种结构的骨化对解剖学家、放射科医生和临床医生都很重要，因为它们与神经血管结构有密切的关系。

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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.