Question 1

Q: Pelvic fracture is most commonly associated with which type of bladder injury?

Extraperitoneal bladder rupture. ***Extraperitoneal bladder rupture*** - **Pelvic fractures** are most commonly associated with **extraperitoneal bladder ruptures** (85-90% of bladder injuries from pelvic fractures). The tear in the bladder often occurs at the neck or anterior wall. These ruptures result from bone fragments from the pelvic fracture directly puncturing the bladder or from shearing forces. - Urine extravasates into the **retropubic space** and other extraperitoneal pelvic tissues, causing symptoms like suprapubic pain, hematuria, and difficulty voiding. - **Posterior urethral injuries** are also commonly associated with pelvic fractures (particularly pubic rami fractures), but among bladder injuries specifically, extraperitoneal rupture is most characteristic. *Intraperitoneal bladder rupture* - **Intraperitoneal bladder ruptures** are less common with pelvic fractures (10-15% of pelvic fracture-related bladder injuries) and typically occur from a direct blow to a **distended bladder**, causing rupture of the bladder dome. - Urine extravasates into the **peritoneal cavity**, leading to generalized abdominal pain, peritonitis, and potentially a larger volume of fluid accumulation. *Anterior urethral injury* - **Anterior urethral injuries** (e.g., bulbous or pendulous urethra) are usually caused by a **straddle injury** or direct trauma to the perineum. - They are generally **not associated with pelvic fractures**, which typically affect the **posterior urethra** (membranous portion) in males, particularly with pubic rami fractures.

Question

Pelvic fracture is most commonly associated with which type of bladder injury?

Accepted Answer

Extraperitoneal bladder rupture

Answer

Intraperitoneal bladder rupture

Answer

Anterior urethral injury

Answer

Posterior urethral injury

Urology — MCQs

Urology — MCQs

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