This study is about a surgery called Rectus Abdominis Detrusor Myoplasty (RADM). In this surgery, a small piece of the belly muscle is moved and wrapped around your bladder to help it squeeze and empty urine. Doctors are studying this surgery because current treatments, like catheters or nerve implants, don't always work for people whose bladders don't contract on their own. This study monitors the patients' progress for a year following this surgery.