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Preoperative Bladder Scanning Can Predict Postoperative Urinary Retention Following Total Joint Arthroplasty. | LitMetric

AI Article Synopsis

  • The study investigated the risk factors for postoperative urinary retention (POUR) during same-day discharge for patients undergoing total joint arthroplasties (TJA), focusing on the effectiveness of preoperative symptom surveys and bladder scanning.
  • Conducted at a high-volume orthopedic hospital, it analyzed 507 patients who completed an AUA symptom index and underwent bladder scanning before their surgeries.
  • The findings revealed a 37% rate of POUR in total knee arthroplasty (TKA) and 23% in total hip arthroplasty (THA), with preoperative post-void residual volume (PVRV) being a key predictor of POUR, while the AUA symptom survey did not correlate with the condition.

Article Abstract

Background: As total joint arthroplasty (TJA) moves to the outpatient setting, it is becoming clear that postoperative urinary retention (POUR) is a potential impediment to same-day discharge. Although risk factors for POUR have been widely studied, the lack of their clinical utility warrants investigation of specific preoperative factors that can assist in surgical planning and patient optimization. The purpose of the current study was to determine whether preoperative symptom surveys and bladder scanning are useful tools in identifying POUR risk.

Methods: We performed a prospective analysis of patients undergoing total hip arthroplasty (THA) and total knee arthroplasty (TKA) at a high-volume orthopaedic hospital between December 1, 2020, and September 30, 2021. A total of 507 patients (324 female and 183 male) undergoing TJA completed the American Urological Association (AUA) symptom index preoperatively and then again at 14 and 64 days postoperatively. Post-void bladder scans were obtained in the immediate preoperative setting. POUR was defined as a bladder volume of >500 mL that required catheterization. Chi-square and quintile analysis were used to compare bladder scanning volumes, and Student t tests were used to compare AUA scores.

Results: The rate of POUR was 37% (66 female and 34 male) and 23% (37 female and 19 male) in the TKA and THA groups, respectively. Increasing post-void residual volume (PVRV) measured on preoperative bladder scanning was found to be predictive of POUR. Among the TKA cohort, younger age and lower body mass index were also associated with increased catheterization, although age was not statistically significant. The AUA symptom survey was not found to correlate with POUR in either population.

Conclusions: There was a predictable and exponential increase in the rate of catheterization as preoperative PVRV increased from 50 to 200 mL. The AUA symptom score showed no utility in predicting POUR in our study population. We propose that preoperative bladder ultrasonography become standard practice in TJA, especially among patients scheduled for same-day discharge.

Level Of Evidence: Prognostic Level II . See Instructions for Authors for a complete description of levels of evidence.

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Source
http://dx.doi.org/10.2106/JBJS.23.00841DOI Listing

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