1Dietz, H, Lanzarone, V. Levator trauma after vaginal delivery. Obstet Gynecol 2005; 106: 707–712.
2Kearney, R, Miller, J, Ashton-Miller, J, Delancey, J. Obstetric factors associated with levator ani muscle injury after vaginal birth. Obstet Gynecol 2006; 107: 144–49.
3Dietz, HP, Steensma, AB. The prevalence of major abnormalities of the levator ani in urogynaecological patients. BJOG 113: 225–30.
4Lien, KC, Mooney, B, DeLancey, JO, Ashton-Miller, JA. Levator ani muscle stretch induced by simulated vaginal birth. Obstet Gynecol 2004; 103: 31–40.
5Svabik, K, Shek, KL, Dietz, HP. How much does the puborectalis muscle have to stretch in childbirth? Int Urogynecol J 1951; S76.
6Lanzarone, V, Dietz, H. 3Dimensional ultrasound imaging of the levator hiatus in late pregnancy and associations with delivery outcomes. Aust NZ J Obstet Gynaecol 2007; 47: 176–80.
7Balmforth, J, Toosz- Hobson, P, Cardozo, L. Ask not what childbirth can do to your pelvic floor but what your pelvic floor can do in childbirth. Neurourol Urodyn 2003; 22: 540–42.
8Dietz, H, Gillespie, A, Phadke, P. Avulsion of the pubovisceral muscle associated with large vaginal tear after normal vaginal delivery at term. Aust NZ J Obstet Gynaecol 2007; 47: 341–44.
9Swash, M, Snooks, SJ, Henry, MM. Unifying concept of pelvic floor disorders and incontinence. J R Soc Med 1985; 78: 906–11.
10Allen, RE, Hosker, GL, Smith, AR, Warrell, DW. Pelvic floor damage and childbirth: a neurophysiological study. BJOG 1990; 97: 770–79.
11Dietz, HP, Hyland, G, Hay-Smith, J. The assessment of levator trauma: A comparison between palpation and 4D pelvic floor ultrasound. Neurourol Urodyn 2006; 25: 424–27.
12Kearney, R, Miller, JM, Delancey, JO. Interrater reliability and physical examination of the pubovisceral portion of the levator ani muscle, validity comparisons using MR imaging. Neurourol Urodyn 2006; 25: 50–54.
13Dietz, HP, Shek, KL. Validity and reproducibility of the digital detection of levator trauma. Int Urogynecol J 2008; 19: 1097–1101.
14Dietz, HP, Shek, C. Levator avulsion and grading of pelvic floor muscle strength. Int Urogynecol J 2008; 19: 633–36.
15Laycock, J. Assessment and treatment of pelvic floor dysfunction [PhD]. University of Bradford, 1992.
16Devreese, AM, Staes, F, De Weerdt, W, Feys, H, Van Assche, A, Penninckx, F et al. Clinical evaluation of pelvic floor muscle function in continent and incontinent women. Neurourol Urodyn 2004; 23: 190–97.
17Mantle, J. Urinary function and dysfunction. In: Mantle, J, Haslam, J, Barton, S, (eds). Physiotherapy in Obstetrics and Gynaecology. Edinburgh: Butterworth Heinemann, 2004.
18Gainey, HL. Post-partum observation of pelvic tissue damage. Am J Obstet Gynecol 1943; 46: 457–66.
19DeLancey, JO, Kearney, R, Chou, Q, Speights, S, Binno, S. The appearance of levator ani muscle abnormalities in magnetic resonance images after vaginal delivery. Obstet Gynecol 2003; 101: 46–53.
20Debus-Thiede, G. Magnetic Resonance Imaging (MRI) of the Pelvic Floor. In: Schuessler, B, Laycock, J, Norton, P, Stanton, SL, (eds). Pelvic Floor Reeducation- Principles and Practice. London: Springer, 1994: 78–82.
21Toozs- Hobson, P, Athanasiou, S, Khullar, V, Boos, K, Anders, K, Cardozo, LD. Does vaginal delivery damage the pelvic floor? Neurourol Urodyn 1997; 16: 385–86.
22Athanasiou, S, Chaliha, C, Toozs-Hobson, P, Salvatore, S, Khullar, V, Cardozo, L. Direct imaging of the pelvic floor muscles using two-dimensional ultrasound: a comparison of women with urogenital prolapse versus controls. Br J Obstet Gynaecol 2007; 114: 882–88.
23Dietz, H. Ultrasound Imaging of the Pelvic Floor: 3D aspects. Ultrasound Obstet Gynecol 2004; 23: 615–25.
24Dietz, H. Quantification of major morphological abnormalities of the levator ani. Ultrasound Obstet Gynecol 2007; 29: 329–34.
25Dietz, H, Shek, K. Tomographic ultrasound of the pelvic floor: which levels matter most? Neurourol Urodyn 2008; 27: 639–40.
26Dietz, H, Shek, K. Levator trauma can be diagnosed by 2D translabial ultrasound (In Press) Int Urogynecol J; 2009.
27DeLancey, J, Morgan, D, Fenner, D, Kearney, R, Guire, K, Miller, J, et al. Comparison of levator ani muscle defects and function in women with and without pelvic organ prolapse. Obstet Gynecol 2007; 109: 295–302.
28Dietz, H. Levator trauma in labour: a challenge for obstetricians, surgeons and sonologists. Ultrasound Obstet Gynecol 2007; 29: 368–71.
29Abdool, Z, Shek, K, Dietz, H. The effect of levator avulsion on hiatal dimensions and function. Am J Obstet Gynecol 2008; in press.
30Krofta, L, Kasikova, E, Otcenasek, M, Feyereisl, J. Pubococcygeus- puborectalis trauma after instrumental delivery: the use of 4D ultrasound in the evaluation of levator ani muscle. Ultrasound Obstet Gynecol 2007; 30: 446.
31Dietz, H, Simpson, J. Does delayed childbearing increase the risk of levator injury in labour? Aust NZ J Obstet Gynaecol 2007; 47: 491–95.
32Otcenasek, M, Krofta, L, Baca, V, Grill, R, Kucera, E, Herman, H, et al. Bilateral avulsion of the puborectal muscle: magnetic resonance imaging-based three-dimensional reconstruction and comparison with a model of a healthy nulliparous woman. Ultrasound Obstet Gynecol 2007; 29: 692–96.
33Dietz, H, Simpson, J. Levator trauma is associated with pelvic organ prolapse. Br J Obstet Gynaecol 2008; 115: 979–84.
34Dietz, H, De Leon, J, Shek, K. Ballooning of the levator hiatus. Ultrasound Obstet Gynecol 2008; 31: 676–80.
35DeLancey, JO. Anatomy. In: Cardozo, L, Staskin, D, editors. Textbook of Female Urology and Urogynaecology. London, UK: Isis Medical Media, 2001: 112–24.
36Shek, K, Dietz, H. The effect of vaginal childbirth on levator hiatal dimensions. Int Urogynecol J 2008; 19: S130.
37Dietz, H, Shek, K, Clarke, B. Biometry of the pubovisceral muscle and levator hiatus by three-dimensional pelvic floor ultrasound. Ultrasound Obstet Gynecol 2005; 25: 580–85.
38Wilson, PD, Hay Smith, EJ, Nygaard, IE, Wyman, JF, Yamanishi, T, Berghmans, B, et al. Adult conservative management. In: Abrams, P, Cardozo, L, Khoury, S, Wein, A, editors. Incontinence: Third International Consultation on Incontinence. Paris: Health Publications Ltd, 2005: 855–964.
39Adekanmi, OA, Freeman, R, Puckett, M, Jackson, S. Cystocele: Does anterior repair fail because we fail to correct the fascial defects? A clinical and radiological study. Int Urogynecol J 2005; 16: S73.
40Kovacs, G, Heath, P, Heather, C. First Australian trial of the pirth- training device Epi-No: A highly significantly increased chance of an intact perineum. Aust NZ J Obstet Gynaecol 2004; 44: 347–48.