Urine retention postoperative (POUR) is often seen after lower back surgery but also in patients undergoing orthopaedic alloplastic surgery. It can be due to the anaesthesia during the operation or the treatment with Opioids postoperatively.  Urine retention can however also be aggravated if the patient for example due to BPH has a large amount of residual urine preoperatively.

All male patients undergoing lower-back surgery, a hip-or knee alloplastic will have a bladder scan pre- and postoperatively. Patients with residual urine below 150 ml pre-and postoperatively (group 1) will be signed out of the department without further urologic examination. Patients with residual urine between 150 and 300 ml (group 2) will be recommended to visit their GP for follow-up. Patients with residual urine above 300 ml (group 3) will be referred to Department of Urology.

6 months after surgery, patients from group 2 and 3 fulfill questions concerning their urological health, ICIQ Male LUTS questionnaire and a questionnaire concerning Quality of life.

The project is done as a collaboration between Center for elective surgery, Silkeborg and Department of Urology, Gødstrup