- Bladder Injury.

Bladder Injury

Aetiology:-

1. Blunt trauma : 10% of pelvic fractures.
2. Penetrating trauma :gunshots or stap wounds.
3. Iatrogenic:-
• Obestetric :- 0.3% with caeserean section.
• Gynaecological e.g.during a vaginal or abdominal hysterectomy.
• Urological e.g during cystescopy.
• Orthopaedic e.g. pins and screws can commonly perforate the urinary bladder, particularly during internal fixation of pelvic fractures.
4. Idiopathic:- due to presence of a previous scar.

Classification(Pathophysiology):-

1. Extraperitoneal rupture bladder:
Usually due to fracture pelvis,and Extravasation occur at the perivesical space and may extend up to the anterior abdominal wall,If the urogenital membrane is injuried.
2. Intraperitoneal rupture bladder:(The most dangerous)
Usually due to direct trauma when the bladder is full,associated with electrolyte disturbance and may passed unnoticed for along time.

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