(646) 355-8777

Herman & Wallace Blog

Complex Regional Pain Syndrome of the Foot Following a Prostatectomy

The following is a guest submission from Alysson Striner, PT, DPT, PRPC. Dr. Striner became a Certified Pelvic Rehabilitation Practitioner (PRPC) in May of 2018. She specializes in pelvic rehabilitation, general outpatient orthopedics, and aquatics and treats at Carondelet St Joesph’s Hospital in the Speciality Rehab Clinic located in Tucson, Arizona.

Recently, I had a patient present with Complex Regional Pain Syndrome (CRPS) on his right foot. He stated that the pain had started about 10 days after his prostatectomy when someone had fallen onto his right foot. He reported a bunionectomy on that foot 7 years prior and noted an episode of plantar facilities before his prostatectomy. CRPS is defined as “chronic neurologic condition involving the limbs characterized by severe pain along with sensory, autonomic, motor, and trophic impairments” in a 2017 article "Complex regional pain syndrome; a recent update" by Goh, En Lin. The article goes on to discuss how CRPS can set off a cascade of problems including altered cutaneous innervation, central and peripheral sensitization, altered sympathetic nervous system function, circulating catecholamines, changes in autoimmunity, and neuroplasticity.

Homunculus representing how much of the cerebral cortex is devoted to sensing each part of the bodyA recent persistent pain theory to explain the relationship between pelvic floor and his foot could be overflow or ‘smudging’ in his homunculus. The homunculus is the map of our physical body in our brain where the feet are located next to the genitals. Possibly when one has pain, there can be ‘smudging’ of our mental body map from one area into another. I have heard this explained as though a chalk or charcoal drawing has been swipes their hand through the picture. A recent study by Schrabrun, SM et al “Smudging of the Motor Cortex is Related to the Severity of Low Back Pain” found that people with chronic low back pain had a loss of cortical organization which and that this loss was associated with the severity and location of LBP.

There are many ways to improve the organization of the homunculus and create neuroplasticity. One such way was suggested is with Transcutaneous electrical nerve stimulation (TENS) to the bottom of the foot to affect bladder spasms and pain. In recent study, “Transcutaneous electrical stimulation of somatic afferent nerves of the foot relieved symptoms related to postoperative bladder spasms,". Zhang, C et al. 2017 found that participates that had either a bladder surgery or a prostate surgery had improvement in bladder spasm symptoms and VAS scores on day two and three. Their protocol was to use two electrodes over the bottom of the foot at 5 Hz with 0.2 millisecond pulse width until a muscle twitch was achieved and was increased, but still comfortable for an hour (there is a picture of electrode placement in the article). The authors note that this neuromodulation of the foot sensory nerves may inhibit interactions between the somatic peripheral neuropathway and autonomic micturition reflex to calm the bladder and pain.

No matter what we do to help calm nervous systems from the top down; pain neuroscience education, mindful based relaxation, graded motor imagery, or from the bottom up; de-sensitization, biofeedback, or good old-fashioned TENS. The result is the same; a cortical organization and happier patients.


En Lin Goh†, Swathikan Chidambaram† and Daqing Ma. "Complex regional pain syndrome: a recent update". Burns & Trauma 2017 5:2.https://doi.org/10.1186/s41038-016-0066-4"
Schabrun SM, Elgueta-Cancino EL, Hodges PW. "Smudging of the Motor Cortex Is Related to the Severity of Low Back Pain." Spine (Phila Pa 1976). 2017 Aug 1;42(15):1172-1178. doi: 10.1097/BRS.0000000000000938
Chanjuan Zhang, et al. "Transcutaneous electrical stimulation of somatic afferent nerves in the foot relieved symptoms related to postoperative bladder spasms". BMC Urol. 2017; 17: 58. doi: 10.1186/s12894-017-0248-9

People with Parkinson disease can MOVE!
Improving Sexual Function in Women with Cognitive ...

Upcoming Continuing Education Courses

Mobilization of Visceral Fascia: The Gastrointestinal System - Arlington, VA (RESCHEDULED)

Jul 10, 2020 - Jul 12, 2020
Location: Virginia Hospital Center

Mobilization of Visceral Fascia: The Gastrointestinal System

Jul 10, 2020 - Jul 12, 2020
Location: Replacement Remote Course

Postpartum Rehabilitation - Remote Course (SOLD OUT)

Jul 11, 2020 - Jul 12, 2020
Location: Replacement Remote Course

Pelvic Floor Level 1 Part 1 - Remote Course (SOLD OUT)

Jul 11, 2020 - Jul 12, 2020
Location: Short Form Remote Course

Athletes & Pelvic Rehabilitation - Remote Course

Jul 11, 2020 - Jul 12, 2020
Location: Replacement Remote Course

Bowel Pathology and Function - Remote Course (SOLD OUT)

Jul 11, 2020 - Jul 12, 2020
Location: Replacement Remote Course

Pelvic Floor Level 1 - Newark, NJ (Rescheduled)

Jul 12, 2020 - Jul 14, 2020
Location: Rutgers University - Doctoral Programs in Physical Therapy

Pregnancy Rehabilitation - Remote Course

Jul 16, 2020 - Jul 17, 2020
Location: Replacement Remote Course

Postpartum Rehabilitation - Foothill Ranch, CA (RESCHEDULED)

Jul 18, 2020 - Jul 19, 2020
Location: Intercore Physical Therapy

Pelvic Floor Level 1 - Colorado Springs, CO (SOLD OUT)

Jul 18, 2020 - Jul 19, 2020
Location: Manual Edge Physiotherapy

Postpartum Rehabilitation - Remote Course

Jul 18, 2020 - Jul 19, 2020
Location: Replacement Remote Course

Pelvic Floor Level 1- Bangor, ME (Rescheduled)

Jul 18, 2020 - Jul 19, 2020
Location: Husson University

Pelvic Floor Level 1 - Columbus, OH

Jul 18, 2020 - Jul 19, 2020
Location: Fitness Matters

Pelvic Floor Level 1 Part 1 - Remote Course (SOLD OUT)

Jul 21, 2020 - Jul 22, 2020
Location: Short Form Remote Course

Nutrition Perspectives for the Pelvic Rehab Therapist - Columbia, MO (Rescheduled)

Jul 24, 2020 - Jul 26, 2020
Location: University of Missouri-Smiley Lane Therapy Services

Pelvic Floor Level 1 - Chicago, IL (RESCHEDULED)

Jul 25, 2020 - Jul 26, 2020
Location: Advocate Illinois Masonic Medical Center

Pelvic Floor Level 1 - Fayetteville, NC (SOLD OUT)

Jul 25, 2020 - Jul 26, 2020
Location: Methodist University School of Health Sciences

Nutrition Perspectives for the Pelvic Rehab Therapist - Remote Course

Jul 25, 2020 - Jul 26, 2020
Location: Replacement Remote Course

Pelvic Floor Level 2A - Glenwood Springs, CO (SOLD OUT)

Jul 25, 2020 - Jul 26, 2020
Location: Valley View Hospital

Pudendal Neuralgia and Nerve Entrapment - Maywood, IL (RESCHEDULED)

Jul 25, 2020 - Jul 26, 2020
Location: Loyola University Health System

Pelvic Floor Level 2B - Los Angeles, CA (RESCHEDULED)

Jul 25, 2020 - Jul 26, 2020
Location: Mount Saint Mary’s University

Manual Therapy for the Abdominal Wall - Remote Course

Jul 31, 2020
Location: Short Form Remote Course

Parkinson Disease and Pelvic Rehabilitation - Remote Course

Jul 31, 2020 - Aug 1, 2020
Location: Short Form Remote Course

Neurologic Conditions and Pelvic Floor Rehab - Washington, DC

Jul 31, 2020 - Aug 2, 2020
Location: George Washington University Hospital Outpatient Rehabilitation Center

Restorative Yoga for Physical Therapists - Remote Course

Aug 1, 2020 - Aug 2, 2020
Location: Replacement Remote Course

Pelvic Floor Level 2A - Chicago, IL (SOLD OUT)

Aug 1, 2020 - Aug 2, 2020
Location: Midwestern Regional Medical Center

Pelvic Floor Level 2A - Washington, DC (SOLD OUT)

Aug 1, 2020 - Aug 2, 2020
Location: The George Washington University

Pelvic Floor Level 1 - New York City, NY (RESCHEDULED)

Aug 2, 2020 - Aug 3, 2020
Location: Touro College

Pelvic Floor Level 1 - Birmingham, AL (SOLD OUT)

Aug 8, 2020 - Aug 9, 2020
Location: Shelby Baptist Medical Center