Mathew M, Ragsdale TD, Pharr ZK, et al. - Researchers assumed whether the frequency of postoperative urinary retention (POUR) following outpatient total hip arthroplasty in the ASC is low compared to previously reported rates and that management can be effective in the perioperative period when it is encountered. They distinguished 377 total hip arthroplasty patients (409 hips) who had arthroplasties in the ambulatory surgery center over a 5-year period. They recorded intraoperatively, albumin volume administered and estimated blood loss. The results showed that POUR was infrequent but the reported inability to urinate was not (9.8%) and can be safely managed when it does occur and they observed that elevated age and albumin volume over 500ml may increase the risk for a prolonged length of stay due to the inability to urinate.