Abstract
Since childbirth presents a significant risk factor for pathology occurrence of the pelvic floor, analysis of the phenomena involved during a vaginal delivery is a major issue in obstetrics and gynecology researches. Computational biomechanics tool dedicated to the delivery could help to understand the causes of injuries and predict the perineal lesion. From MRI images of four women at different terms of pregnancy, a parametric FE model is generated and allows to analyze the potential damage areas during childbirth, related to strain rate of anatomical structures. The influence of the geometry of levator ani muscle, head size, terms, and cephalic presentations are investigated. The geometrical refinement of anatomical structures influences the strain levels and helps to localized more precisely the most injured areas. Posterior cephalic presentation presents higher injury risk than the anterior one. Maternal geometry at different terms brings equivalent results contrary to the fetal head sizes that have an influence on the strain level and the potential damage induced. This multi-parametric investigation allows us to have a customizable and predictive tool evaluating the potential damages on the pelvis during delivery.
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References
Mayeur O, Witz JF, Lecomte-Grosbras P, Brieu M, Cosson M, Miller K (2016) Influence of geometry and mechanical properties on the accuracy of patient-specific simulation of women pelvic floor. Ann Biomed Eng 44(1):202–212
Samuelsson EC, Arne Victor FT, Tibblin G, Svardsudd KF (1999) Signs of genital prolapse in a Swedish population of women 20 to 59 years of age and possible related factors. Am J Obstet Gynecol 180(2):299–305
Rortveit G, Brown JS, Thom DH, Van Den Eeden SK, Creasman JM, Subak LL (2007) Symptomatic pelvic organ prolapse: prevalence and risk factors in a population-based, racially diverse cohort. Obstet Gynecol 109(6):1396–1403
O’Boyle AL, O’Boyle JD, Ricks RE, Patience TH, Calhoun B, Davis G (2003) The natural history of pelvic organ support in pregnancy. Int Urogynecol J Pelvic Floor Dysfunct 14(1): 46–49
Rahn DD, Ruff MD, Brown SA, Tibbals HF, Word RA (2008) Biomechanical properties of the vaginal wall: effect of pregnancy, elastic fiber deficiency, and pelvic organ prolapse. Am J Obstet Gynecol 198(5):590–596
Sultan AH (1999) Clinical focus: obstetric perineal injury and faecal incontinence after childbirth – editorial: obstetrical perineal injury and anal incontinence. Clin Risk 5(6): 193–196
Kettle C, Tohill S (2008) Perineal care. BMJ Clin Evidence 2008:1–18
Dietz HP, Lanzarone V (2005) Levator trauma after vaginal delivery. Obstet Gynecol 106(4):707–712
Dietz HP, Gillespie AV, Phadke P (2007) Avulsion of the pubovisceral muscle associated with large vaginal tear after normal vaginal delivery at term. ANZJOG 47(4):341–344
DeLancey JOL, Kearney R, Chou Q, Speights S, Binno S (2003) The appearance of levator ani muscle abnormalities in magnetic resonance images after vaginal delivery. Obstet Gynecol 101(1):46–53
Chen L, Ashton-Miller JA, DeLancey JOL (2009) A 3d finite element model of anterior vaginal wall support to evaluate mechanisms underlying cystocele formation. J Biomech 42(10): 1371–1377
Parente MPL, Natal Jorge RM, Mascarenhas T, Fernandes AA, Martins JAC (2009) The influence of the material properties on the biomechanical behavior of the pelvic floor muscles during vaginal delivery. J Biomech 42(9):1301–1306
Ashton-Miller JA, Delancey JOL (2009) On the biomechanics of vaginal birth and common sequelae. Annu Rev Biomed Eng 11:163–176
van Delft K, Thakar R, Sultan AH, Schwertner-Tiepelmann N, Kluivers K (2014) Levator ani muscle avulsion during childbirth: a risk prediction model. BJOG 121(9):1155–1163
Li X, Kruger JA, Nash MP, Nielsen PMF (2010) Anisotropic effects of the levator ani muscle during childbirth. Biomech Model Mechanobiol 10(4):485–494
Li X, Kruger JA, Nash MP, Nielsen PMF (2010) Effects of nonlinear muscle elasticity on pelvic floor mechanics during vaginal childbirth. J Biomech Eng 132(11):111010–111015
Rubod C, Boukerrou M, Brieu M, Jean-Charles C, Dubois P, Cosson M (2008) Biomechanical properties of vaginal tissue: preliminary results. Int Urogynecol J Pelvic Floor Dysfunct 121(9):811–816
Chantereau P, Brieu M, Kammal M, Farthmann J, Gabriel B, Cosson M (2014) Mechanical properties of pelvic soft tissue of young women and impact of aging. Int Urogynecol J 25(11):1547–1553
Yeoh OH (1993) Some forms of the strain energy function for rubber. Rubber Chem Technol 66(5):754–771
Rubod C, Brieu M, Cosson M, Rivaux G, Clay JC, Gabriel B (2012) Biomechanical properties of human pelvic organs. J Urol 79(4):1346–1354
Salameh C, Canoui-Poitrine F, Cortet M, Lafon A, Rudigoz RC, Huissoud C (2011) Does persistent occiput posterior position increase the risk of severe perineal laceration? Gynecol Obstet Fertil 39(10):545–548
Pergialiotis V, Vlachos D, Protopapas A, Pappa K, Vlachos G (2014) Risk factors for severe perineal lacerations during childbirth. Int J Gynaecol Obstet 125(1):6–14
Ponkey SE, Cohen AP, Heffner LJ, Lieberman E (2003) Persistent fetal occiput posterior position: obstetric outcomes. Obstet Gynecol 101(5):915–920
Berardi M, Martinez-Romero O, Elías-Zúñiga A, Rodríguez M, Ceretti E, Fiorentino A, Donzella G, Avanzini A (2014) Levator ani deformation during the second stage of labour. Proc Inst Mech Eng 228:501–508
Dejun J, Ashton-Miller JA, DeLancey JOL (2012) A subject specific anisotropic visco-hyperelastic finite element model of female pelvic floor stress and strain during the second stage of labor. J Biomech 45(3):455–460
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This research is a part of the project « MAMAN » financially supported by the University of Lille 2.
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Mayeur, O. et al. (2017). Evaluation of Strains on Levator Ani Muscle: Damage Induced During Delivery for a Prediction of Patient Risks. In: Wittek, A., Joldes, G., Nielsen, P., Doyle, B., Miller, K. (eds) Computational Biomechanics for Medicine. Springer, Cham. https://doi.org/10.1007/978-3-319-54481-6_12
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DOI: https://doi.org/10.1007/978-3-319-54481-6_12
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