Atlas d’anatomie humaine

Martin, Vigué; Vicari, Fernand

doi:10.1007/bf03006357

Cited by 29 publications

(4 citation statements)

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“…Non‐fractured external geometries of one hipbone and the sacrum were later imported into HyperMesh 12.0 (Altair Engineering, Troy, Michigan, USA) for both surface cleaning and mirroring to obtain a fully symmetrical intact pelvis considered suitable by experienced surgeons for conducting the study. Because of the difficulty in distinguishing soft tissues with Computed Tomography scans, both sacroiliac joints and the pubic symphysis were constructed in this very same software by linking the articular surfaces of bones according to anatomical observations from literature (Netter 2007, Becker et al 2010). Two spheres were created to represent each femoral head.…”

Section: Methodsmentioning

confidence: 99%

“…Each force acting on the pelvis computed by inverse dynamics was decomposed into three components along space direction. These components were implemented into an ANSYS Workbench FE model as direct or remote forces applied on surfaces of the geometries of bones for muscles (according to anatomical muscles attachments (Netter 2007, Drake et al 2014)) and to femoral heads as direct forces for left and right hip joint reaction forces. The global magnitudes are reported in Table 2 for information.…”

Section: Methodsmentioning

confidence: 99%

“…The osseous pelvis is a complex circular structure. The left and right ilium and the sacrum are linked at the level of the pubic symphysis anteriorly and by two sacroiliac joints posteriorly (Netter 2007). This pelvic ring, reinforced by muscles and ligaments (Schatzker & Tile 2005), enables load transfer from the lumbar spine to the lower extremities.…”

Section: Introductionmentioning

confidence: 99%

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Finite element analysis of the pelvis including gait muscle forces: an investigation into the effect of rami fractures on load transmission

et al. 2018

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BackgroundThe objective of the study is to investigate the load transmission within the pelvic ring under physiological loading during gait and to correlate these results with clinical findings. In a second approach, we analysed how load distribution is altered by fractures of the anterior pelvic ring.MethodsMuscle forces and joint reaction forces are calculated by inverse dynamics and implemented in a finite element pelvis model including the joints.ResultsWith the intact configuration and according to the moment of the gait, left and right superior and inferior rami show the highest stresses of the model, corresponding to the typical location of an anterior pelvic ring fracture. A superior ramus fracture induces larger stresses to the lower ramus and a slight increase of stresses on the posterior structures. A total disruption of anterior rami redirects the loads to the back of the pelvis and introduces significantly higher stresses on the posterior structures.ConclusionsThis investigation enhances the understanding of the biomechanics of the pelvis and highlights the important role of the rami in load carrying and in maintaining integrity of the pelvic ring.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Finite element analysis of the pelvis including gait muscle forces: an investigation into the effect of rami fractures on load transmission

et al. 2018

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“…The ligations caused a decrease in the medullar blood flow and consequent cord ischemia. Some segmental arteries branch in anterior radiculomedullary arteries, which supply the anterior spinal artery (ASA) [10][11][12]. The terminal perforating capillaries from the ASA supply the grey matter's anterior horn and the white matter's anteromedial part, forming the vertical medullary network [10].…”

Section: Introductionmentioning

confidence: 99%

The Associative Pattern Between Segmental Arterial Damage and Complete Neurological Disorder After Spinal Cord Injury: A Case-Control Study

Boukebous¹,

Serfaty²,

Hodges-Tai³

et al. 2023

Cureus

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Introduction: The prevalence of vascular trauma surrounding the thoracic spine following Spinal Cord Injury (SCI) is unknown. The potential for neurologic recovery is uncertain in many cases; in some cases, neurologic assessment is not possible, for example, in severe head injury or early intubation, and detection of segmental artery injury may help as a predictive factor.Objective: To assess the prevalence of segmental vessel disruption in two groups, with and without neurologic deficit.Material and methods: This is a retrospective cohort study, with a group SCI American Spinal Injury Association (ASIA) E and a group SCI ASIA A. All patients had a high-energy thoracic or thoracolumbar fracture from T1 to L1. Patients were matched 1:1 (one ASIA A matched with one ASIA E) according to the fracture type, age, and level. The primary variable was the assessment of the presence/disruption of the segmental arteries, bilaterally, around the fracture. Analysis was performed twice by two independent surgeons in a blinded fashion.Results: Both groups had 2 type A, 8 type B, and 4 type C fractures. The right segmental artery was detected in 14/14 (100%) of the patients with ASIA E and in 3/14 (21%) or 2/14 (14%) of the patients with ASIA A, according to the observers, p=0.001. The left segmental artery was detectable in 13/14 (93%) or 14/14 (100%) of the patients ASIA E and in 3/14 (21%) of the patients ASIA A for both observers. All in all, 13/14 of the patients with ASIA A had at least one segmental artery undetectable. The sensibility varied between 78%to 92%, and the specificity from 82% to 100%. The Kappa Score varied between 0.55 and 0.78. Conclusion: Segmental arteries disruption was common in the group ASIA A. This may help to predict the neurological status of patients with no complete neurological assessment or potential for recovery postinjury.

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Syndromes douloureux posturaux et auriculothérapie

Meas¹

2007

Auriculothérapie

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Atlas d’anatomie humaine

Cited by 29 publications

References 0 publications

Finite element analysis of the pelvis including gait muscle forces: an investigation into the effect of rami fractures on load transmission

Finite element analysis of the pelvis including gait muscle forces: an investigation into the effect of rami fractures on load transmission

The Associative Pattern Between Segmental Arterial Damage and Complete Neurological Disorder After Spinal Cord Injury: A Case-Control Study

Syndromes douloureux posturaux et auriculothérapie

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