Incidence and immediate management of genitourinary injuries in pelvic and acetabular trauma: a 10-year retrospective study.

Objective: To report the incidence of genitourinary (GU) injuries in pelvic and acetabular (P + A) fractures, to investigate associations between P + A fractures and GU injury patterns, and, as a secondary objective, to evaluate prospectively P + A fracture referrals with regard to adherence to the British Orthopaedic Association Standards for Trauma (BOAST) guidelines over a 12-month period.

Methods: A retrospective review of GU injuries associated with P + A fractures was performed for the period January 2006 to December 2016 in a national pelvic trauma centre in Ireland. Patient demographics, mechanism of injury and details of injuries were recorded. In addition, P + A fracture referrals were prospectively monitored in 2016 and reviewed for adherence to guidelines.

Results: The incidence of urological trauma in P + A fractures was 2.4% (n = 28/1 141). The median (range) patient age was 45 (19-85) years and the male to female ratio was 2.1:1. Urethral injuries occurred most frequently (n = 12, 43%), followed by bladder (n = 9, 32%), combined bladder and urethral (n = 3, 11%) and kidney (n = 4, 14%). Bladder and urethral injuries were associated with high-energy pelvic trauma. Renal injuries were associated with acetabular fractures in isolation and in combination with pelvic trauma (P = 0.01). In 2016, there were 175 P + A fracture referrals and 19 patients had suspected urotrauma (visible haematuria, n = 5; non-visible haematuria, n = 2; trauma imaging, n = 11); 9 of these 19 patients had no urological investigations performed.

Conclusion: In P + A trauma cases GU injuries may be underreported because of inadequate evaluation and diagnostic investigations in these patients. We advocate robust, uniform and guideline-based evaluation of GU injuries in P + A trauma to avoid the significant long-term morbidities that are associated with misdiagnosis.