Evaluation of the superior pubic ramus and supra acetabular corridors using statistical shape modelling.

IF 1.4 4区 医学 Q2 Medicine
Surgical and Radiologic Anatomy Pub Date : 2024-08-01 Epub Date: 2024-06-28 DOI:10.1007/s00276-024-03420-y
Stijn De Bondt, Yannick Carette, G Harry van Lenthe, Michiel Herteleer
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引用次数: 0

Abstract

Introduction: The incidence of osteoporotic pelvic fractures is increasing. The broken anterior pelvic ring is preferentially fixed with long intramedullary screws, which require a good understanding of the patient-specific anatomy to prevent joint perforation. The aim of this study was to assess the variability of the superior pubic ramus and the supra acetabular corridors' length and width using statistical shape modelling.

Materials and methods: A male and female statistical shape model was made based on 59 forensic CT scans. For the superior pubic ramus and the supra acetabular corridor the longest and widest completely fitting cylinder was created for the first 5 principal components (PC) of both models, male and female pelvises separately.

Results: A total of 59 pelvises were included in this study of which 36 male and 23 female. The first 5 principal components explained 75% and 79% of the pelvic variation in males and females, respectively. Within 3 PCs of the female statistical shape model (SSM) a superior pubic ramus corridor of < 7.3 mm was found, 5.5 mm being the narrowest linear corridor measured. Both corridors in all PCs of the male SSM measured > 7.3 mm.

Conclusion: Within females a 7.3 mm and 6.5 mm screw won't always fit in the superior pubic ramus corridor, especially if a flat sacrum, a small pelvis or a wide subpubic angle are present. The supra acetabular corridor did not seem to have sex-specific differences. In the supra-acetabular corridor there was always enough space to accommodate a 7.3 mm screw, both in males and females.

Abstract Image

利用统计形状建模评估耻骨上横突和髋臼上走廊。
简介骨质疏松性骨盆骨折的发病率正在上升。骨盆前环骨折首选用长髓内螺钉固定,这就需要充分了解患者的具体解剖结构,以防止关节穿孔。本研究旨在使用统计形状模型评估耻骨上横突和髋臼上走廊长度和宽度的可变性:根据 59 张法医 CT 扫描图像制作了男性和女性统计形状模型。对于耻骨上横突和髋臼上走廊,对两个模型的前 5 个主成分(PC)分别创建了最长和最宽的完全拟合圆柱体,男性和女性骨盆均是如此:本研究共包括 59 个骨盆,其中男性 36 个,女性 23 个。前 5 个主成分分别解释了男性和女性骨盆 75% 和 79% 的变化。在女性统计形状模型(SSM)的 3 个主成分中,耻骨上横纹走廊为 7.3 毫米:结论:在女性中,7.3 毫米和 6.5 毫米的螺钉并不总是适合耻骨上横突走廊,尤其是在骶骨较平、骨盆较小或耻骨下角较宽的情况下。髋臼上走廊似乎没有性别差异。无论是男性还是女性,髋臼上走廊总是有足够的空间容纳 7.3 毫米的螺钉。
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
Surgical and Radiologic Anatomy Medicine-Pathology and Forensic Medicine
CiteScore
2.40
自引率
14.30%
发文量
0
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.
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