
John O. L. DeLancey
Training and career
- Current position Norman F. Miller Legacy Professor of Gynecology and professor of obstetrics and gynecology and urology, University of Michigan Medical School.1
- Medical school University of Michigan Medical School.2
- Residency Obstetrics and gynecology, University of Michigan Health System.2
- Leadership Past president, American Urogynecologic Society, Society of Gynecologic Surgeons, and American Gynecological and Obstetrical Society.2
Key Publications
His cited work examines pelvic floor support, including apical and perineal structures, levator ani injury, and MRI models of prolapse. It also addresses urethral support and closure in stress urinary incontinence, including the hammock hypothesis.P4P5P6P7P8
- DeLancey JOL. "Anatomie aspects of vaginal eversion after hysterectomy." American Journal of Obstetrics and Gynecology. 1992;166(6):1717–1728. doi
Three levels of vaginal support (1992). Described distinct apical, lateral and distal vaginal support attachments through cadaveric dissection.
- DeLancey JOL. "Structural support of the urethra as it relates to stress urinary incontinence: The hammock hypothesis." American Journal of Obstetrics and Gynecology. 1994;170(6):1713–1723. doi
Urethral support hammock hypothesis (1994). Proposed that the anterior vaginal wall and endopelvic fascia provide a supportive layer against which abdominal pressure compresses the urethra.
- DeLancey J. "The appearance of levator ani muscle abnormalities in magnetic resonance images after vaginal delivery." Obstetrics & Gynecology. 2003;101(1):46–53. doi
MRI demonstration of levator ani defects after vaginal delivery (2003). Documented levator ani defects on MRI in women after vaginal delivery and their absence in nulliparous controls.
Cited on: The Perineum - DeLancey JO, Pipitone F, Masteling M, et al. "Functional Anatomy of Urogenital Hiatus Closure: The Perineal Complex Triad Hypothesis." Int Urogynecol J. 2024;35(2):441–449. doi
- Ramanah R, Berger MB, Parratte BM, DeLancey JO. "Anatomy and Histology of Apical Support: A Literature Review Concerning Cardinal and Uterosacral Ligaments." Int Urogynecol J. 2012;23(11):1483–1494. doi
- DeLancey JOL, Mastrovito S, Masteling M, et al. "Hiatus and Pelvic Floor Failure Patterns in Pelvic Organ Prolapse: A 3D MRI Study of Structural Interactions Using a Level III Conceptual Model." Am J Obstet Gynecol. 2025;233(1):47.e1-47.e12. doiCited on: Perineorrhaphy
- DeLancey JO, Mastrovito S, Masteling M, et al. A unified pelvic floor conceptual model for studying morphological changes with prolapse, age, and parity. Am J Obstet Gynecol. 2024;230(5):476-484.e2. doiCited on: Iliococcygeus Fascia Suspension
- Kieserman-Shmokler C, Swenson CW, Chen L, Desmond LM, Ashton-Miller JA, DeLancey JO. From molecular to macro: the key role of the apical ligaments in uterovaginal support. Am J Obstet Gynecol. 2020;222(5):427-436. doiCited on: Apical Prolapse
Other Publications Cited on WARWIKI
28 additional publications with John O. L. DeLancey as a listed author are cited on WARWIKI, ordered by the number of pages that cite them. Papers whose author list is shortened to "et al." before this name are not included.
- Arenholt LTS, Pedersen BG, Glavind K, Glavind-Kristensen M, DeLancey JOL. "Paravaginal defect: anatomy, clinical findings, and imaging." Int Urogynecol J. 2017;28(5):661–673. doi
- Elkins TE, DeLancey JO, McGuire EJ. "The Use of Modified Martius Graft as an Adjunctive Technique in Vesicovaginal and Rectovaginal Fistula Repair." Obstet Gynecol. 1990;75(4):727–733. PMID 2314794.
- Kieserman-Shmokler C, Sammarco AG, English EM, Swenson CW, DeLancey JO. "The Latzko: a high-value, versatile vesicovaginal fistula repair." Am J Obstet Gynecol. 2019;221(2):160.e1–160.e4. doi
- Betschart C, Kim J, Miller JM, Ashton-Miller JA, DeLancey JOL. "Comparison of muscle fiber directions between different levator ani muscle subdivisions: in vivo MRI measurements in women." Int Urogynecol J. 2014;25(9):1263–1268. doi
- Ashton-Miller JA, DeLancey JO. "Functional Anatomy of the Female Pelvic Floor." Ann N Y Acad Sci. 2007;1101:266–296. doi
- DeLancey JO. "Structural Anatomy of the Posterior Pelvic Compartment as It Relates to Rectocele." Am J Obstet Gynecol. 1999;180(4):815-823. doi
- Fitzpatrick CC, Elkins TE, DeLancey JO. "The surgical anatomy of needle bladder neck suspension." Obstet Gynecol. 1996;87(1):44–9. doi
- Morley GW, DeLancey JO. Full-thickness skin graft vaginoplasty for treatment of the stenotic or foreshortened vagina. Obstet Gynecol. 1991;77(3):485–9. PMID 1992422.
- DeLancey JOL. "Structural aspects of the extrinsic continence mechanism." Obstet Gynecol. 1988;72(3 Pt 1):296–301. PMID:3405547.
- DeLancey JOL. Anatomy. In: Cardozo L, Staskin D, eds. Textbook of Female Urology and Urogynecology. Vol 1: Clinical Perspectives. 5th ed. CRC Press; 2023:164–178. doiCited on: The Bladder
- Chen L, Schmidt P, DeLancey JOL, Swenson CW. "Analysis of long-term structural failure after native tissue prolapse surgery: a 3D stress MRI-based study." Int Urogynecol J. 2022;33(10):2761-2772. doiCited on: Anterior Compartment Prolapse
- Pipitone F, Sadeghi Z, DeLancey JOL. "Urethral Function and Failure: A Review of Current Knowledge of Urethral Closure Mechanisms, How They Vary, and How They Are Affected by Life Events." Neurourol Urodyn. 2021;40(8):1869–1879. doiCited on: Female Urethra