• E Charles Osterberg, Mohannad A Awad, Thomas W Gaither, Thomas Sanford, Amjad Alwaal, Lindsay A Hampson, Jennie Yoo, Jack W McAninch, and Benjamin N Breyer.
• Department of Urology, University of California - San Francisco, San Francisco, CA, United States. Electronic address: charles.osterberg@ucsf.edu.
• Injury. 2017 Jan 1; 48 (1): 153-157.

BackgroundEpidemiological studies have shown that bicycle trauma is associated with genitourinary (GU) injuries. Our objective is to characterize GU-related bicycle trauma admitted to a level I trauma center.Materials And MethodsWe queried a prospective trauma registry for bicycle injuries over a 20-year period. Patient demographics, triage data, operative interventions and hospital details were collected.ResultsIn total, 1659 patients were admitted with major bicycle trauma. Of these, 48 cases involved a GU organ, specifically the bladder (n=7), testis (n=6), urethra (n=3), adrenal (n=4) and/or kidneys (n=36). The median age of cyclists with GU injuries was 29 (range 5-70). More men were injured versus women (35 versus 13). GU-related bicycle trauma involved a motor vehicle in 52% (25/48) of injuries. The median injury severity score for GU-related bicycle trauma was 17 (range 1-50). The median number of concomitant organ injuries was 2 (range 0-6), the most common of which was the lungs (13/48, 27%) and ribs (13/48, 27%). The majority of GU injured cyclists were admitted to an ICU (15/48, 31%) or hospital floor (12/48, 25%). Operative intervention for a GU-related trauma was low (12/48, 25%). The most common GU organ injured was the kidney (36/48, 75%) however most were managed nonoperatively (33/36, 92%). Bladder injuries most often required operative intervention (6/7, 86%). Mortality following GU-related bicycle trauma was low (2/48, 4%).ConclusionsIn a large series of bicycle trauma, GU organs were injured in 3% of cases. The majority of cases were managed non-operatively and mortality was low.Published by Elsevier Ltd.

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