Reservoir site?!

[Mangotin]

What is the difference between placing the reservoir of a Coloplast implant inside the pelvis versus behind the abdominal muscles? And does placing it behind the abdominal muscles cause a visible bulge in a thin person?

[ElbowRoom]

Placing the reservoir in the HSM (High Submuscular) position is less common than in the space of Retzius in the pelvic region. It’s possible to have the reservoir visible and/or palpable in the HSM position, but skilled placement can avoid that usually. It’s also possible that when engaging the abdominal muscles that the check valve to the reservoir could be overcome, leading to auto-inflation to some degree.

Space of Retzius placement isn’t perfect either, there is chance of interference with the bladder and pelvic vasculature.