Academic literature on the topic 'Acetabular notch'
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Journal articles on the topic "Acetabular notch"
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Sachdeva, Kanika, Rajan Kumar Singla, Gurdeep Kalsey, and Preetika Sharma. "Sex Differences in Morphometry of North Indian Acetabula—Forensic and Orthopedic Consideration." National Journal of Clinical Anatomy 08, no. 04 (October 2019): 153–59. http://dx.doi.org/10.1055/s-0039-3400840.
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Abstract Background Acetabulum is a cup-shaped cavity of the hipbone. It constitutes the acetabular part of the hip joint. Its shape and position related to the head of the femur are crucial for the biomechanics of this joint. The knowledge of various acetabular dimensions is essential to diagnose various diseases of hip joint, to monitor patient recovery, to determine stability of the hip joint, to assess acetabular dysplasia, and also to create patient-specific acetabular implants in case of hip arthroplasty. Various parameters of acetabulum differ with respect to age, sex, race, and region. Thus, a region-specific knowledge of the acetabular dimensions will be helpful for surgical reconstruction and sex determination. Materials and Methods The current study was conducted on 100 adult os coxae (male:female = 80:20, right:left = 50:50). The various acetabular dimensions measured were (1) breadth of acetabulum, (2) vertical diameter of acetabulum, (3) maximum depth of acetabulum, (4) linear length of acetabular notch, (5) length of acetabular rim, and (6) total length of acetabular rim with notch. The values were statistically evaluated to find out the sex and side-related differences. Results All the parameters measured were larger in male bones as compared with female bones. Nevertheless, the difference in values was significant only for breadth of acetabulum, vertical diameter of acetabulum, length of acetabular rim, and total length of acetabular rim with notch. Also, the values were more on left side although results were insignificant. Conclusions The results of the present study will provide reference acetabular values for North India region.
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Portinaro, N. M. A., D. Murray, and M. K. D. Benson. "Acetabular Notch." Journal of Pediatric Orthopaedics B 6, no. 1 (January 1997): 48–51. http://dx.doi.org/10.1097/01202412-199701000-00010.
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Pullanna, Bollavaram, Gautham Kamble, and Jayalakshmi P. V. "Study of Morphometric Analysis of Acetabulum and Its Clinical Correlation in South Indian Population." International Journal of Anatomy and Research 10, no. 2 (June 5, 2022): 8352–58. http://dx.doi.org/10.16965/ijar.2022.125.
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Introduction: Acetabulum is a cup shaped cavity on the outer surface of the constricted central part of the hip bone, where three components meet and subsequently fuse. In modern world, orthopaedic surgeons and biomedical engineers are trying to make the best possible prosthesis for planning the total hip replacement. Body proportion and absolute dimension vary widely in respect to age, sex and racial groups. While partially due to variability in muscularity and adiposity, such variations are chiefly in skeletal system. Purpose of study: The main intention of this study was to obtain the morphometric data of acetabulum. This data suffices the mechanics of the hip joint so as to plan for suitable prosthesis and various surgical approaches. Material and method: The study was conducted in the department of Anatomy. Hundred hip bones of both sexes were used. In this study we included only healthy adult bones, deformed and eroded bones were excluded from the study. The osteometric parameters such as diameter, depth and capacity of acetabulum, notch width and shape of the anterior acetabular ridge were measured using digital Vernier calipers and measuring jar. The data was analysed statistically using SPSS software. Results: The mean diameter of acetabulum in males was found to be 5.03 cm and in females it was 4.44 cm, whereas on right side it was 4.70 cm and on left side it was 4.77 cm. The mean depth of acetabulum in males was 2.85 cm and in females it was 2.49 cm, whereas on the right side was 2.71 cm and 2.63 cm on the left. The mean notch width of the acetabulum in males was 2.07 cm and in females it was 1.71 cm, whereas on the right side it was 1.92 cm, and 1.85 cm on the left. Total range for the acetabular capacity was 22-30.68 ml. The curved shape anterior acetabular ridge was the most predominant type (39%) and the least type was irregular shaped (15%). Conclusion: The acetabular parameters such as acetabular diameter, depth, capacity and notch width of the acetabulum was greater in males compared to the females. Statistically the comparison was highly significant. Most common anterior acetabular ridge shape is curved type (39%), least was Irregular type (15%). Morphometric data of acetabulum is essential for clinical correlation and it also helps in the detection of disputed sex by Forensic experts. It also helps the orthopaedic surgeons for planning the total hip replacement KEY WORDS: Hip bone, Acetabular Diameter, Acetabular Depth, anterior ridge, Notch.
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Kabir, C., N. Sandiford, S. K. Muirhead-Allwood, and T. Nuthall. "A Displaced Acetabular Component Causing Femoral Neck Notching following Hip Resurfacing." HIP International 18, no. 4 (October 2008): 321–23. http://dx.doi.org/10.1177/112070000801800409.
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We describe the case of a patient who developed a notch on the femoral neck following a hip resurfacing operation as a result of a displaced acetabular component. The acetabular cup displaced in the coronal plane and impinged on the femoral neck leading to a large notch in the inferior femoral neck.
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Portinaro, NM, SJ Matthews, and MK Benson. "The acetabular notch in hip dysplasia." Journal of Bone and Joint Surgery. British volume 76-B, no. 2 (March 1994): 271–73. http://dx.doi.org/10.1302/0301-620x.76b2.8113290.
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Kalairajah, Yega, Jim M. Gray, Thomas O. Boerger, Lionel G. Ripley, and David M. Ricketts. "Sealing the Acetabular Notch: Does It Improve Cement Penetration in the Acetabulum?" Orthopedics 31, no. 5 (May 1, 2008): 463–66. http://dx.doi.org/10.3928/01477447-20110414-06.
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Yoo, Jeong Joon, Hee Joong Kim, Young Min Kim, Kang Sup Yoon, Kyung Hoi Koo, Kwang Woo Nam, and Yong Lae Kim. "Medial Placement of a Cementless Acetabular Component in a Modern Alumina-on-Alumina THA." Key Engineering Materials 330-332 (February 2007): 1243–46. http://dx.doi.org/10.4028/www.scientific.net/kem.330-332.1243.
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Medial placement of a cementless acetabular component into or beyond the medial wall of a shallow, dysplastic acetabulum is a technique to enhance its coverage during difficult total hip arthroplasty (THA). Dysplastic hips almost always need small size of acetabular component, so an accelerated polyethylene wear can occur when a conventional bearing surface is used. Modern alumina-on-alumina couplings can be an alternative for these patients. We evaluated the clinical results of 43 medially placed cementless acetabular components (PLASMACUP®SC) incorporating a modern alumina bearing surface (BIOLOX® forte). Acetabular components were inserted medially beyond the ilioischial line and, therefore, beyond the level of the cortical bone of the cotyloid notch, and followed up for more than 5 years (range, 60 – 93 months). In 14 hips, the medial acetabular wall was perforated purposefully and the medial aspect of the cup was placed beyond both the ilioischial and the iliopubic line on radiographs. The mean Harris hip score improved from 55.3 points preoperatively to 94.5 points postoperatively. Postoperatively, the hip center migrated 12.1 mm medially and 1.5 mm inferiorly. The average amount of cup protrusion beyond the ilioischial and the iliopubic line was 3.1 mm and 1.9 mm, respectively. The average superolateral coverage of the cup was 98.5 percent. During follow-up, no osteolysis or loosening of acetabular components was observed and no revision was required. Medial placement of a cementless acetabular component into or beyond the medial acetabular wall offers predictable clinical results and durable fixation in modern alumina-on-alumina THA.
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Meng, Huai, Zixue Guo, Lili Hou, Qin Liu, Chanyue Wang, and Ximing Zhou. "USING ACETABULAR NOTCH FOR ACETABULAR COMPONENT PLACEMENT INTRAOPERATIVELY IN TOTAL HIP ARTHOPLASTY." Journal of Biomechanics 40 (January 2007): S571. http://dx.doi.org/10.1016/s0021-9290(07)70561-4.
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DeFroda, Steven F., Thomas D. Alter, Floor Lambers, Philip Malloy, Ian M. Clapp, Jorge Chahla, and Shane J. Nho. "Quantification of Acetabular Coverage on 3-Dimensional Reconstructed Computed Tomography Scan Bone Models in Patients With Femoroacetabular Impingement Syndrome: A Descriptive Study." Orthopaedic Journal of Sports Medicine 9, no. 11 (November 1, 2021): 232596712110494. http://dx.doi.org/10.1177/23259671211049457.
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Background: Accurate assessment of osseous morphology is imperative in the evaluation of patients with femoroacetabular impingement syndrome (FAIS) and hip dysplasia. Through use of computed tomography (CT), 3-dimensional (3D) reconstructed hip models may provide a more precise measurement for overcoverage and undercoverage and aid in the interpretation of 2-dimensional radiographs obtained in the clinical setting. Purpose: To describe new measures of acetabular coverage based on 3D-reconstructed CT scan bone models. Study Design: Cross-sectional study; Level of evidence, 3. Methods: Preoperative CT scans were acquired on the bilateral hips and pelvises of 30 patients before arthroscopic surgical intervention for FAIS. Custom software was used for semiautomated segmentation to generate 3D osseous models of the femur and acetabulum that were aligned to a standard coordinate system. This software calculated percentage of total acetabular coverage, which was defined as the surface area projected onto the superior aspect of the femoral head. The percentage of coverage was also quantified regionally in the anteromedial, anterolateral, posteromedial, and posterolateral quadrants of the femoral head. The acetabular clockface was established by defining 6 o’clock as the inferior aspect of the acetabular notch. Radial coverage was then calculated along the clockface from the 9-o’clock to 5-o’clock positions. Results: The study included 20 female and 10 male patients with a mean age of 33.6 ± 11.7 years and mean body mass index of 27.8 ± 6.3. The average percentage of total acetabular coverage for the sample was 57% ± 6%. Acetabular coverages by region were as follows: anteromedial, 78% ± 7%; anterolateral, 18% ± 7%, posterolateral, 33% ± 13%, and posteromedial, 99% ± 1%. The acetabular coverage ranged from 23% to 69% along the radial clockface from 9 to 5 o’clock. Conclusion: This study demonstrated new 3D measurements to characterize acetabular coverage in patients with FAIS and elucidated the distribution of acetabular coverage according to these measurements.
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Mikula, Jacob D., Erik L. Slette, Jorge Chahla, Alex W. Brady, Renato Locks, Christiano A. C. Trindade, Matthew T. Rasmussen, Robert F. LaPrade, and Marc J. Philippon. "Quantitative Anatomic Analysis of the Native Ligamentum Teres." Orthopaedic Journal of Sports Medicine 5, no. 2 (February 1, 2017): 232596711769148. http://dx.doi.org/10.1177/2325967117691480.
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Background: While recent studies have addressed the biomechanical function of the ligamentum teres and provided descriptions of ligamentum teres reconstruction techniques, its detailed quantitative anatomy remains relatively undocumented. Moreover, there is a lack of consensus in the literature regarding the number and morphology of the acetabular attachments of the ligamentum teres. Purpose: To provide a clinically relevant quantitative anatomic description of the native human ligamentum teres. Study Design: Descriptive laboratory study. Methods: Ten human cadaveric hemipelvises, complete with femurs (mean age, 59.6 years; range, 47-65 years), were dissected free of all extra-articular soft tissues to isolate the ligamentum teres and its attachments. A coordinate measuring device was used to quantify the attachment areas and their relationships to pertinent open and arthroscopic landmarks on both the acetabulum and the femur. The clock face reference system was utilized to describe acetabular anatomy, and all anatomic relationships were described using the mean and 95% confidence intervals. Results: There were 6 distinct attachments to the acetabulum and 1 to the femur. The areas of the acetabular and femoral attachment footprints of the ligamentum teres were 434 mm2 (95% CI, 320-549 mm2) and 84 mm2 (95% CI, 65-104 mm2), respectively. The 6 acetabular clock face locations were as follows: anterior attachment, 4:53 o’clock (95% CI, 4:45-5:02); posterior attachment, 6:33 o’clock (95% CI, 6:23-6:43); ischial attachment, 8:07 o’clock (95% CI, 7:47-8:26); iliac attachment, 1:49 o’clock (95% CI, 1:04-2:34); and a smaller pubic attachment that was located at 3:50 o’clock (95% CI, 3:41-4:00). The ischial attachment possessed the largest cross-sectional attachment area (127.3 mm2; 95% CI, 103.0-151.7 mm2) of all the acetabular attachments of the ligamentum teres. Conclusion: The most important finding of this study was that the human ligamentum teres had 6 distinct points of attachment on the acetabulum (transverse, anterior, and posterior margins of the acetabular notch and cotyloid fossa attachments: ilium, ischium, and pubis) and 1 on the femur. On the acetabulum, the anterior attachment was substantially larger than the posterior attachment and was located at a mean clock face position of 4:53 o’clock. Clinical Relevance: These quantitative descriptions of the ligamentum teres can be used by clinicians to arthroscopically identify the attachments of the ligamentum teres, guiding arthroscopic surgical interventions designed to address ligamentum teres pathology.
Dissertations / Theses on the topic "Acetabular notch"
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Smith, Bjorn Nicholas. "Improved acetabular cementing techniques." Thesis, Queensland University of Technology, 2007. https://eprints.qut.edu.au/16560/1/Bjorn_N._Smith_Thesis.pdf.
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The most common cause for revision total hip replacement surgey is aseptic loosening of the acetabular component. This thesis explores the effect of three techniques to improve the depth and quality of cemented acetabular component fixation in primary total hip replacement. This may have beneficial effects on the longevity of cemented acetabular components and reduce the rate of revision surgery for aseptic loosening.
Aims: 1. Determine the effect of the rim cutter on cement pressure during cup insertion. 2. Examine the effect of the rim cutter on cement penetration distance. 3. Evaluate the effect of bone grafting of the acetabular notch. 4. Determine the effect of iliac suction during cement pressurisation. 5. Compare the behaviour of bone cement with Play Dough.
Materials and Methods: 1. Sawbones hemi pelvis models were fitted with pressure transducers at the rim and apex of the acetabulum. Peak pressure was measured upon insertion of cups with different flange sizes and when the acetabulum was prepared with the rim cutter. 2. Foam cavities were used to measure the depth of cement penetration when the same cups and rim cutter were used. 3. Hemi pelvis models were modified to simulate bone grafting of the acetabular notch. Again, pressure sensors were mounted at the apex and rim of the acetabulum. Intra-acetabular cement pressure was compared with native acetabulae. 4. A back bleeding model of the acetabulum was fitted with a suction catheter. The effect on cement penetration into cancellous bone was measured compared with no suction. 5. Play Dough pressurisation and penetration into hemi pelvises and foam was compared to bone cement.
Results: 1. Significant increase in peak apex and rim pressures when flanged cup inserted into an acetabulum prepared with the rim cutter compared with both flanged and unflanged cups alone. 2. Significant increase in cement penetration at the rim of the acetabulum when rim cutter used and flanged cup inserted when compared with flanged and unflanged cups alone. 3. Significant increase in intra-acetabular pressure when cement pressurised in presence of simulated acetabular notch bone grafting compared with normal acetabulae. 4. Significant increase in cement penetration distance when suction used compared with no suction. 5. Significant differences in the flow characteristics between bone cement and Play Dough.
Conclusion: The authors recommend preparation of the acetabular rim with the rim cutter and bone grafting of the acetabular notch to improve the depth and uniformity of the cement mantle in cemented primary THA. Play Dough at room temperature is not a suitable substitute for bone cement in in-vitro cementing studies.
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Smith, Bjorn Nicholas. "Improved acetabular cementing techniques." Queensland University of Technology, 2007. http://eprints.qut.edu.au/16560/.
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The most common cause for revision total hip replacement surgey is aseptic loosening of the acetabular component. This thesis explores the effect of three techniques to improve the depth and quality of cemented acetabular component fixation in primary total hip replacement. This may have beneficial effects on the longevity of cemented acetabular components and reduce the rate of revision surgery for aseptic loosening. Aims: 1. Determine the effect of the rim cutter on cement pressure during cup insertion. 2. Examine the effect of the rim cutter on cement penetration distance. 3. Evaluate the effect of bone grafting of the acetabular notch. 4. Determine the effect of iliac suction during cement pressurisation. 5. Compare the behaviour of bone cement with Play Dough. Materials and Methods: 1. Sawbones hemi pelvis models were fitted with pressure transducers at the rim and apex of the acetabulum. Peak pressure was measured upon insertion of cups with different flange sizes and when the acetabulum was prepared with the rim cutter. 2. Foam cavities were used to measure the depth of cement penetration when the same cups and rim cutter were used. 3. Hemi pelvis models were modified to simulate bone grafting of the acetabular notch. Again, pressure sensors were mounted at the apex and rim of the acetabulum. Intra-acetabular cement pressure was compared with native acetabulae. 4. A back bleeding model of the acetabulum was fitted with a suction catheter. The effect on cement penetration into cancellous bone was measured compared with no suction. 5. Play Dough pressurisation and penetration into hemi pelvises and foam was compared to bone cement. Results: 1. Significant increase in peak apex and rim pressures when flanged cup inserted into an acetabulum prepared with the rim cutter compared with both flanged and unflanged cups alone. 2. Significant increase in cement penetration at the rim of the acetabulum when rim cutter used and flanged cup inserted when compared with flanged and unflanged cups alone. 3. Significant increase in intra-acetabular pressure when cement pressurised in presence of simulated acetabular notch bone grafting compared with normal acetabulae. 4. Significant increase in cement penetration distance when suction used compared with no suction. 5. Significant differences in the flow characteristics between bone cement and Play Dough. Conclusion: The authors recommend preparation of the acetabular rim with the rim cutter and bone grafting of the acetabular notch to improve the depth and uniformity of the cement mantle in cemented primary THA. Play Dough at room temperature is not a suitable substitute for bone cement in in-vitro cementing studies.
Book chapters on the topic "Acetabular notch"
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Trinkaus, Erik, Alexandra P. Buzhilova, Maria B. Mednikova, and Maria V. Dobrovolskaya. "The Pelves of Sunghir 1, 2, and 3." In The People of Sunghir. Oxford University Press, 2014. http://dx.doi.org/10.1093/oso/9780199381050.003.0017.
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The pelvis forms the interface between the trunk and the lower limb, as well as supporting the pelvic viscera, and as such its size and morphology reflect a diversity of biological pressures. Aspects of the Sunghir pelvic remains relating to the assessment of sex (pubic morphology, greater sciatic notch shape) and age (auricular surface, epiphyses) are presented in chapter 6, and the features of the sacrum (and coccyx) that are more strictly axial are discussed in chapter 10. The discussion here is concerned with the overall configurations of the Sunghir pelvic remains and more detailed aspects related to function. Given the male sex of Sunghir 1 and the prepubescent ages of Sunghir 2 and 3, reproductive issues beyond those related to sex assessment are not relevant to these remains. Unfortunately, the pelvis for which comparative data and biomechanical models of function exist, that of the adult male Sunghir 1, is the least complete, sufficiently so as to prevent the articulation of the elements. In contrast, the two immature pelves are quite complete, despite problems with reassembly given their immature status. Yet assessing their proportions is inhibited by issues of growth and development. The pelvis of Sunghir 1, as with most of its trunk (chapter 10), suffered extensively from vertical compression in situ. The pubic bones are absent, and the ilia and ischia sustained considerable damage, much of which has been restored in wax. For example, the left acetabular rim is largely intact, but the lunate surface and acetabular notch are blended together with wax, obscuring details. The sacrum retains neither of its alae intact to the auricular surface. The Sunghir 2 and 3 pelves, in contrast, are largely present, with varying degrees of edge damage and loss of the thinner cortical bone, especially within the iliac fossae of Sunghir 3. However, both pelves retain their more cranial sacra, at least one intact sacroiliac articulation, and variable portions of the ischia and pubic bones. The primary difficulties in assessing the Sunghir 2 and 3 pelves derive from their immature status.
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Haeusler, Martin, and Christopher B. Ruff. "Pelvis." In Hominin Postcranial Remains from Sterkfontein, South Africa, 1936-1995, 187–209. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780197507667.003.0011.
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The hominin pelvis is a remarkable structure that plays a central role in many critical biological processes, most notably bipedal locomotion and parturition. Here we describe each pelvic element from Sterkfontein and reconstruct the pelvis of the partial skeletons of Sts 14 and StW 431. Based on preserved contours, if human sexing methods can be accurately applied to australopiths, it is likely that Sts 14 represents a female individual, with the larger size, narrower greater sciatic notch of Sts 65 and StW 431 and other morphologies suggesting that these individuals were male. Some degenerative defects of the StW 431 acetabulum also suggest this may have been an older adult. This chapter also presents complete pelvic reconstructions of all of these fragmentary hipbone fossils.
Conference papers on the topic "Acetabular notch"
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Untaroiu, Costin D., Robert S. Salzar, Herve´ Guillemot, and Jeff R. Crandall. "The Strain Distribution and Force Transmission Path Through Pubic Rami During Lateral Pelvic Impacts." In ASME 2008 International Mechanical Engineering Congress and Exposition. ASMEDC, 2008. http://dx.doi.org/10.1115/imece2008-67791.
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The pubic rami fracture is a common pelvic injury for vehicle occupants as well as for pedestrians struck during side impacts. While many studies have investigated the structural properties of the pelvis in lateral loading, relatively few investigations have compared the applied loads with local response of the pubic rami. The aims of this study are to investigate the force transmission paths and strain distribution for the anterior (i.e., rami) and posterior (i.e., sacrum) regions of the pelvis under acetabular impact loading. Eight male postmortem human surrogate pelves were tested to failure in quasi-static (n = 2) and dynamic (n = 6) conditions using an Instron test machine and a drop-tower, respectively. The denuded pelves were potted and then cut along a line connecting the greater sciatic notch and the middle of anterior iliac spine. Lateral loading was applied at the site of the acetabulum using a custom-fit femoral head surrogate made of steel. An acoustic emission (AE) sensor and uniaxial strain gages were affixed to the four rami (anterior and posterior) to assess the time of fracture as well as the regional strain distribution. In addition to measuring the impacting force, the loads transmitted through the pelvis were recorded on the non-struck side using load cells at the inferior and superior potting attachment points. To better understand the load path and strain distribution through the rami a finite element model of a human pelvis was developed from computer tomography data and validated based on available published test data. Then, the lateral impact test was numerically simulated and the model responses were mostly within the min-max ranges of the test data. The test data and FE simulations showed that prior to the fracture the pubic symphysis joint transmitted the higher percentage of load (about 66% in dynamic tests). The strain distribution analysis of the impact pelvic tests showed that the pubic rami are subjected predominantly to compressive stress on the anterior side and tensile stress on the posterior side. While the anterior pubic side of the non-impact part of the pelvis was always subjected to compressive stress, some test variability was observed on other regions of the non-impact sides. In addition to providing validation data for computational models, the results highlight the vulnerability of pubic rami structure in carrying lateral load in acetabular impacts and may lend insight into the development of injury countermeasures.