Orthopaedic Cases Discussion - Tönnis angle on an anteroposterior pelvic radiograph in a left hip. Line 1 is the horizontal reference connecting the inferior portion of the acetabular teardrop with line 2,
![Frontiers | Acetabular Edge Loading During Gait Is Elevated by the Anatomical Deformities of Hip Dysplasia Frontiers | Acetabular Edge Loading During Gait Is Elevated by the Anatomical Deformities of Hip Dysplasia](https://www.frontiersin.org/files/Articles/687419/fspor-03-687419-HTML-r1/image_m/fspor-03-687419-g001.jpg)
Frontiers | Acetabular Edge Loading During Gait Is Elevated by the Anatomical Deformities of Hip Dysplasia
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Figure 8 from A Systematic Approach to Evaluating Hip Radiographs-A Focus on Osteoarthritis | Semantic Scholar
![Sourcil (Tönnis) angle. The right hip (green angle) represents normal... | Download Scientific Diagram Sourcil (Tönnis) angle. The right hip (green angle) represents normal... | Download Scientific Diagram](https://www.researchgate.net/publication/339664544/figure/fig2/AS:877892925943810@1586317392531/Sourcil-Toennis-angle-The-right-hip-green-angle-represents-normal-Sourcil-angle.png)
Sourcil (Tönnis) angle. The right hip (green angle) represents normal... | Download Scientific Diagram
![Reliability of the sourcil method of acetabular index measurement in developmental dysplasia of the hip - C. L. Maddock, S. Noor, A. Kothari, C. S. Bradley, S. P. Kelley, 2019 Reliability of the sourcil method of acetabular index measurement in developmental dysplasia of the hip - C. L. Maddock, S. Noor, A. Kothari, C. S. Bradley, S. P. Kelley, 2019](https://journals.sagepub.com/cms/10.1302/1863-2548.13.190015/asset/images/large/10.1302_1863-2548.13.190015-fig1.jpeg)
Reliability of the sourcil method of acetabular index measurement in developmental dysplasia of the hip - C. L. Maddock, S. Noor, A. Kothari, C. S. Bradley, S. P. Kelley, 2019
![Sourcil (Tönnis) angle. The right hip (green angle) represents normal... | Download Scientific Diagram Sourcil (Tönnis) angle. The right hip (green angle) represents normal... | Download Scientific Diagram](https://www.researchgate.net/profile/Khaled-Sarraf/publication/339664544/figure/fig3/AS:877892925923330@1586317392572/a-Fovea-on-the-right-red-depression-is-in-contact-with-the-Sourcil-and-represents-Fovea_Q320.jpg)
Sourcil (Tönnis) angle. The right hip (green angle) represents normal... | Download Scientific Diagram
![Sourcil (Tönnis) angle. The right hip (green angle) represents normal... | Download Scientific Diagram Sourcil (Tönnis) angle. The right hip (green angle) represents normal... | Download Scientific Diagram](https://www.researchgate.net/profile/Khaled-Sarraf/publication/339664544/figure/fig1/AS:877892925931521@1586317392486/a-Teardrop-sign-The-U-shaped-blue-line-teardrop-consists-of-ilioischial-line-red_Q320.jpg)