Abstract

Purpose

The purpose of this study was to reveal the morphological correlation between the lateral wall of femoral intercondylar notch and the Blumensaat’s line.

Methods

Forty-one non-paired human cadaveric knees were included in this study (23 female, 18 male: median age 83). Knees were resected, and 3 dimensional computed tomography (3D-CT) was performed. In the axial CT image, bony protrusion (resident’s ridge) and cortical thickness in the lateral wall of the femoral intercondylar notch were detected. The length between the top of the ridge, or the most anterior, middle, and most posterior border of cortical thickness and posterior femoral condylar line was measured. Following Iriuchishima’s classification, the morphology of the Blumensaat’s line was classified into straight and hill types (small and large hill types). In the hill types, the length between the hilltop and the posterior border of the Blumensaat’s line or the posterior border of the femoral condyle was evaluated. Statistical correlation was calculated between the top of the ridge location, cortical thickness location in the notch, and hilltop location.

Results

There were 7 straight type knees and 34 hill type knees (9 small hill type knees and 25 large hill type knees). Only the hill types of knees were evaluated. The top of the ridge, anterior margin, middle, and posterior border of cortical thickness in the lateral wall of the femoral intercondylar notch existed at 61.8 ± 4.6%, 58.3 ± 12.3%, 42.1 ± 7.9%, and 25.5 ± 5.4% from the posterior condylar line, respectively. The hilltop existed at 24.9 ± 5.9% and 30.7 ± 5.0%, from the posterior border of the Blumensaat’s line and from the posterior border of the femoral condyle, respectively. Significant correlation was observed between resident’s ridge top, cortical thickness location and hilltop location.

Conclusion

In all cadaveric knees, cortical thickness was detected in the lateral wall of the femoral intercondylar notch. The resident’s ridge and cortical thickness location had significant correlation with the hill location in the Blumensaat’s line, indicating a continuation of the cortical bone from the posterior cortex of the femoral shaft via the hilltop of the Blumensaat’s line to the cortical thickness in the lateral wall of the femoral intercondylar notch. For clinical relevance, hilltop location in the Blumensaat’s line is a new bony landmark in anterior cruciate ligament surgery.

中文翻译：

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居民脊的形态以及股骨con间凹口侧壁的皮质厚度与蓝门氏线的形态变化相关。

摘要

目的

这项研究的目的是揭示股骨con间凹口侧壁与Blumensaat线之间的形态相关性。

方法

这项研究包括41个非配对的人尸体膝盖（23名女性，18名男性：中位年龄83岁）。切除膝盖，并进行3D计算机断层扫描（3D-CT）。在轴向CT图像中，检测到股骨con间凹口侧壁的骨突起（居民脊）和皮质厚度。测量between顶部或皮质厚度的最前，中和最后边界与股骨后line线之间的长度。根据Iriuchishima的分类，Blumensaat线的形态分为直线型和山型（小山型和大山型）。在丘陵类型中，评估了山顶与Blumensaat线的后边界或股骨dy的后边界之间的长度。

结果

有7个笔直型膝盖和34个山型膝盖（9个小山型膝盖和25个大山型膝盖）。仅评估了膝盖的丘陵类型。股骨con间凹口侧壁的thickness顶部，前缘，中部和后边界皮质厚度分别为61.8±4.6％，58.3±12.3％，42.1±7.9％和25.5±5.4％后con突线。从布鲁门萨特线的后缘和股骨con的后缘起，山顶分别以24.9±5.9％和30.7±5.0％存在。在居民的脊顶，皮层厚度位置和山顶位置之间观察到显着相关性。

结论

在所有尸体膝盖中，在股骨con间凹口的侧壁检测到皮质厚度。居民的脊线和皮质厚度位置与Blumensaat线中的丘陵位置具有显着相关性，表明皮质骨从股骨干后皮质经Blumensaat线的山顶延续到Blumenatat侧壁的皮质厚度股骨inter间凹口。对于临床相关性，布鲁门萨特（Blumensaat）线的山顶位置是前十字韧带手术的新骨标志。