(646) 355-8777

Herman & Wallace Blog

Pelvic Organ Prolapse and Levator Avulsion

What's the evidence, and what's the answer?

In getting ready to teach my Menopause course in Minneapolis next month, I always like to do a review of the evidence, to see what’s new, or what’s changed. What has changed over the past few years – more and more evidence to support the role of skilled rehab providers, using evidence based assessment techniques to gauge the grade of pelvic organ prolapse and assess the risk of levator avulsion. What hasn’t changed enough – the level of awareness of the benefits of pelvic rehab in managing, or in some cases even reversing, the effects and symptoms of prolapse.

Dr Peter Dietz, from the University of Sydney, writes ‘…although clinical anecdote suggests some physiotherapists recognize other characteristics suggesting muscle dysfunction (e.g. holes, gaps, ridges, scarring) or pelvic floor dysfunction (e.g. width between medial edges of pelvic floor muscle) with palpation it is difficult to find any literature describing the techniques needed to do this or their accuracy or repeatability. Mantle (in 2004) noted that with training and experience a physiotherapist might be able to discern muscle integrity, scarring, and the width between the medial borders of the pelvic floor muscles, with palpation. It is not clear to what extent physiotherapists are able to do this reliably or how such characteristics are to be recorded.’

Dr Dietz describes a palpation technique to assess the integrity of the pubovisceral muscle insertion, by checking the gap between the urethra centrally and the pubovisceral muscle laterally. On levator contraction this gap should be little wider than your index finger, otherwise an avulsion injury is very likely.

There is another aspect of levator assessment that can yield important information on clinical examination. The size of the levator hiatus can be estimated by determining the sum of the genital hiatus (gh) and perineal body (pb) in the context of the ICS POP-Q examination. Gh + pb, ie., the distance between the external urethral meatus and the centre of the anus, when measured on maximal Valsalva with a simple ruler, is highly predictive of symptoms and signs of prolapse, and it is very strongly correlated with hiatal area on Valsalva (Khunda et al., 2011).

Using this research, in the lab sessions of the Menopause course, we will review these palpation and measurement skills to give therapists the skills they need to confidently assess risk of levator avulsion and its impact on pelvic organ prolapse, and to use this information to devise a functionally appropriate rehab program.

Come and join the conversation in my course, Menopause Rehabilitation and Symptom Management!


Khunda A1, Shek KL, Dietz HP., Am J Obstet Gynecol. 2012 Mar;206(3):246.e1-4. doi: 10.1016/j.ajog.2011.10.876. Epub 2011 Nov 7. Can ballooning of the levator hiatus be determined clinically?

Pudendal entrapment or a tumor?
An Interview with Lee Sowada, PT, DPT, PRPC

Upcoming Continuing Education Courses

Oct 19, 2019 - Oct 21, 2019
Location: Lee Memorial Health System

Oct 25, 2019 - Oct 27, 2019
Location: Core 3 Physical Therapy

Oct 26, 2019 - Oct 27, 2019
Location: Texas Children’s Hospital

Nov 1, 2019 - Nov 3, 2019
Location: Adena Rehabilitation and Wellness Center

Nov 1, 2019 - Nov 3, 2019
Location: Asante Rogue Valley Medical Center

Nov 1, 2019 - Nov 3, 2019
Location: Cancer Treatment Centers of America - Chicago, IL

Nov 1, 2019 - Nov 3, 2019
Location: Upper Chesapeake Health

Nov 2, 2019 - Nov 3, 2019
Location: University Hospitals

Nov 2, 2019 - Nov 3, 2019
Location: Griffin Hospital

Nov 3, 2019 - Nov 5, 2019
Location: Touro College: Bayshore

Nov 8, 2019 - Nov 10, 2019
Location: Washington Regional Medical Center

Nov 9, 2019 - Nov 11, 2019
Location: Comprehensive Therapy Services

Nov 9, 2019 - Nov 10, 2019
Location: Summa Health Center

Nov 9, 2019 - Nov 10, 2019
Location: STI PT and Rehab

Nov 9, 2019 - Nov 10, 2019
Location: Providence Holy Cross Medical Center of Mission Hills

Nov 15, 2019 - Nov 17, 2019
Location: Banner Physical Therapy and Rehabilitation

Nov 15, 2019 - Nov 17, 2019
Location: Ability Rehabilitation

Nov 15, 2019 - Nov 17, 2019
Location: Huntington Hospital

Nov 16, 2019 - Nov 17, 2019
Location: Princeton Healthcare System

Dec 6, 2019 - Dec 7, 2019
Location: Swedish Covenant Hospital

Dec 6, 2019 - Dec 8, 2019
Location: Swedish Covenant Hospital

Dec 6, 2019 - Dec 8, 2019
Location: Franklin Pierce University

Dec 6, 2019 - Dec 8, 2019
Location: Florida Hospital - Wesley Chapel

Jan 10, 2020 - Jan 12, 2020
Location: Dominican Hospital - Physical Therapy

Jan 17, 2020 - Jan 19, 2020
Location: Spooner Physical Therapy

Jan 17, 2020 - Jan 19, 2020
Location: Banner Physical Therapy and Rehabilitation

Jan 17, 2020 - Jan 19, 2020
Location: Our Lady of the Lake Children's Hospital

Jan 24, 2020 - Jan 26, 2020
Location: Nova Southeastern University

Feb 1, 2020 - Feb 2, 2020
Location: Evergreen Hospital Medical Center

Feb 1, 2020 - Feb 2, 2020
Location: Ochsner Health System