Morphology of the resident's ridge, and the cortical thickness in the lateral wall of the femoral intercondylar notch correlate with the morphological variations of the Blumensaat's line
| Autor: | Takanori Iriuchishima, Shin Aizawa, Yoshiyuki Yahagi, Genki Iwama, Makoto Suruga |
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| Rok vydání: | 2019 |
| Předmět: |
Male
medicine.medical_specialty Morphology (linguistics) Knee Joint Anterior cruciate ligament Condyle 03 medical and health sciences 0302 clinical medicine Imaging Three-Dimensional Cadaver Medicine Humans Orthopedics and Sports Medicine Femur Anterior Cruciate Ligament Aged 80 and over 030222 orthopedics Anterior Cruciate Ligament Reconstruction business.industry 030229 sport sciences Anatomy Ridge (differential geometry) Blumensaat's line medicine.anatomical_structure Orthopedic surgery Surgery Cortical bone Female business Cadaveric spasm Tomography X-Ray Computed |
| Zdroj: | Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA. 28(8) |
| ISSN: | 1433-7347 |
| Popis: | The purpose of this study was to reveal the morphological correlation between the lateral wall of femoral intercondylar notch and the Blumensaat’s line. 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. 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. 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. |
| Databáze: | OpenAIRE |
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