What is Urinary Sphincter Replacement: Overview, Benefits, and Expected Results

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What ​Is Urinary Sphincter⁣ Replacement: Overview, Benefits,⁢ and‍ Expected Results

The bladder is ‍the organ responsible⁣ for storing ⁤urine prior to its excretion through ‍the⁣ body. When a dysfunction occurs that ‍prevents the proper regulation of this ‌process, it is known ⁢as urinary sphincter incontinence, which can cause leakage‌ and other‌ problems. Urinary sphincter replacement is an effective treatment option for people who suffer from urinary sphincter incontinence,⁢ as it can ‍help them regain control over ⁤their​ bladder ⁢function. Here we will⁤ discuss what‍ a urinary sphincter replacement is, its benefits, and its potential ‍results.

Overview of Urinary Sphincter Replacement

A urinary sphincter replacement is a ‌surgical procedure ​which is used to repair the urethra ‌or urinary sphincter, a ⁢group ‌of muscles ​located at the​ base of‍ the bladder, which controls the flow of urine. These muscles can be‌ damaged due to age or‍ from some medical conditions, leading to urinary incontinence. The⁢ goal of a urinary sphincter replacement is to restore the functioning of the urethral muscles and thereby reduce the symptoms ⁣of urinary incontinence.

The surgery typically involves replacing the damaged urethral muscles ⁣with a synthetic muscle or⁣ an artificial material. During the‌ surgery, ⁤an incision is ⁣made near the sphincter muscle and synthetic muscle or artificial⁢ material is then carefully inserted ‍and sutured into place. For additional support, ‌the muscles surrounding the ‌urethral sphincter⁤ can⁣ also ⁤be tightened.

Potential Benefits of Urinary Sphincter Replacement

Urinary sphincter replacement surgery carries the potential for‍ various beneficial effects. It can reduce the symptoms of urinary incontinence, such as involuntary leaking, and improve a patient’s quality of life. It can also help to ⁣decrease the risk⁤ of repeated urinary tract infections, as well as reduce the​ need for catheterization and the use of absorbent⁤ pads ⁤for incontinence.

Expected Results of the⁢ Surgery

The outcome of​ urinary sphincter replacement surgery⁤ varies from person to⁢ person, depending on their underlying medical condition ⁤and other factors. Generally speaking, ⁤the surgery is successful ‌in ⁢about 80-90%​ of cases, with patients noticing a ⁤significant reduction or even ⁤elimination of their urinary incontinence symptoms.

Recovery time ⁢also​ varies for each ​person, depending on ⁣the ⁤the type of surgery ⁤they receive. While some people may need a few weeks to recover, others may⁤ need up to six months⁤ or⁤ longer. Additionally, many ⁤patients benefit from therapies such as pelvic floor exercises and biofeedback techniques, which helps them ‍strengthen their muscles and regain bladder⁢ control.

Final Thoughts

Urinary sphincter replacement ​is an‌ effective treatment for those who suffer ​from urinary‌ incontinence due to‌ weakened urethral muscles. It can serve to reduce⁣ or eliminate ​the symptoms of urinary⁤ incontinence, as well as reduce the risk of ⁣repeated urinary tract ‍infections.⁤ Although the results of the surgery vary from person to person, it has been successful in⁣ helping many ⁣people ⁢regain bladder control and improve their quality of life.

Definition & Overview

Urinary sphincter replacement is a surgical procedure that replaces the non-functioning biological urinary sphincter with an artificial one. The new artificial urinary sphincter (AUS) installed functions just like the natural sphincter to allow normal urination.

The urinary sphincter is a circular muscle structure responsible for controlling the flow of urine. A normal functioning sphincter can prevent urine from leaking and control the flow until the brain signals it for voluntary voiding. As the bladder is filled with urine, nerve signals instruct the sphincter to stay contracted while the bladder is relaxed. When the bladder is full, nerve signals then instruct the muscles in the bladder walls to squeeze, allowing urine out of the bladder towards the urethra. However, there are cases when the sphincter fails to function, leading to urinary incontinence (UI), a condition characterised by uncontrolled leakage of urine.

Urinary incontinence due to sphincter malfunction is a distressing condition that may be classified into:

  • Stress incontinence – This is linked to prostate gland removal or radical prostatectomy surgery (such as in the treatment of Prostate cancer). The surgery can damage the sphincter or nearby nerves that can lead to the weakening of sphincter. Any added pressure such as coughing, sneezing or straining may lead to leakage of urine.

  • Total incontinence – A condition when the urinary sphincter muscle no longer works causing the urine to leak from the bladder all the time.

Who Should Undergo and Expected Results

The most important body part in urinary continence is the urinary sphincter. When it is damaged as a result of treatment or due to age, ongoing incontinence will happen.

The main treatment available for this condition is sphincter replacement. AUS is recommended for patients whose urinary incontinence can no longer be managed with non-surgical means including conveens or sheaths and incontinence pads.

It is a relatively quick procedure with high success rates. However, before the procedure is recommended, doctors have to evaluate whether incontinence is indeed linked to sphincter problems.

How is the Procedure Performed?

An artificial sphincter used for this procedure is a balloon-like device made of silicone rubber. It consists of three parts: a balloon reservoir, a cuff, and a pump. Once turned on, the fluid inside the balloon flows out into the cuff. Once filled, it exerts pressure on the urethra to prevent urine from leaking out. Once ready to urinate, the pump is pressed to relax the cuff and allow urine to fall out.

Before surgery, prior preparations are usually done which include the administration of antibiotics and advising the patient to avoid fluid intake hours before the procedure. A general or spinal anaesthesia is then administered.

Once the anaesthesia is in full effect, an incision will be made to access the urethra. For men, the incision is made in the perineum (the area between the anus and penis) or the scrotum. For women, it is either in the vaginal area or abdomen. The surgeon will then make necessary measurements to determine the correct the cuff size of the AUS before placing it around the urethra. The balloon reservoir may be placed inside the lower abdomen through a small incision. The pump is positioned afterwards. For men, it will be placed in the scrotum, while for women, in the labia through a small cut. Once in place, the tubing from the cuff and balloon reservoir will be joined together with the pump. The surgeon will test to determine whether the pump works properly before the stitches are sutured and covered with a bandage.

The procedure takes about an hour to complete. After surgery, a Foley catheter will be temporarily placed to drain urine until the AUS can be used. Pain medications and antibiotics are also administered to help prevent infection. The AUS will not be used until about 6 to 8 weeks after surgery, when the area has completely healed.

Possible Risks and Complications

Urinary sphincter replacement is a safe procedure with high success and satisfaction rates. However, in some cases, complications do occur. These include:

  • Infection
  • Failure of artificial sphincter to work as expected
  • Bleeding
  • Difficulty urinating after surgery
  • Damage to the urethra, bladder, or nearby tissues
  • Bruising or swelling of the treatment area
  • The possibility of another surgery to fix or replace AUS


  • Magera JS Jr, Inman BA, Elliott DS. Does preoperative topical antimicrobial scrub reduce positive surgical site culture rates in men undergoing artificial urinary sphincter placement?. J Urol. 2007 Oct. 178(4 Pt 1):1328-32; discussion 1332.

  • Henry GD, Graham SM, Cleves MA, Simmons CJ, Flynn B. Perineal approach for artificial urinary sphincter implantation appears to control male stress incontinence better than the transscrotal approach. J Urol. 2008 Apr. 179(4):1475-9; discussion 1479.


One comment

  1. Great article. Very informative.
    amandashine25: Wow! I’ve been researching this topic lately and this post clarifies the info so much!

    Great post – I’m definitely more informed after reading it!

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