@Jonno It seems there is limited information on this surgery... that I can find. I found a study in NICE by Cancer Research UK whereby men were given 2 options, the artificial sphincter or urethral sling. The trial is in phase 4 now and finished in 2017. I guess they are compiling their findings now to release the results. Here is what I borrowed from their site...
Doctors can help men in this situation by doing more surgery to fit a device that helps men control their flow of urine. This device is called an artificial urinary sphincter. It involves putting an inflatable ring around the tube that carries the urine from the bladder to the outside of the body (urethra). The ring is attached to a small pump in your scrotum that you use to deflate the ring when you want to pass urine.
Artificial sphincter for trial
There is another device called the male sling. The male sling is a flexible net that is put around the urethra. It acts like a hammock providing support for the urethra. The male sling doesn’t need a pump to work.
Sling around urethra diagram
The surgery needed to put the male sling in place is a little simpler than to put the artificial urinary sphincter in. But at the moment there isn’t enough evidence to say if the male sling is as good as the artificial urinary sphincter. The researchers want to compare the 2 devices to find out if the male sling is as good as the artificial urinary sphincter. The National Institute for Health and Care Excellence (NICE) has said that because of the uncertainty about the male sling, it should only be used in a trial like MASTER.
Please see the following link to the study...
This trial compared 2 devices to help men with urine leakage (urinary incontinence) after having surgery for prostate cancer.
www.cancerresearchuk.org
Hope some of that might help you and best suggestion is to get a referral to see a urologist from your GP and discuss with them.