Inject a 50-mL bolus of intravenous contrast agent followed in exactly 10 minutes by a flat plate of the abdomen on the operating room table.

Inject a 100-mL bolus of intravenous contrast agent followed in exactly 10 minutes by a flat plate of the abdomen on the operating room table.

Inject 100╯mL of intravenous contrast and obtain a kidney, ureter, bladder (KUB) film 20 minutes following injection.

Determine the patient’s serum creatinine level before administration of intravenous contrast agent to make sure that he or she will not experience renal failure as a result of reaction to the contrast agent.

Inject a 50-mL bolus of intravenous contrast agent followed by a full IVP series including abdominal compression to evaluate the ureters.

Transureteroureterostomy

Nephrectomy

Boari flap

Cutaneous ureterostomy

Ureteroureterostomy

Spatulated, watertight repair

Postoperative retroperitoneal penrose drain

Nonabsorbable sutures

Postoperative nephrostomy drain

Intraperitonealization of the ureteral anastomosis

Ureteroscopy without dilating the ureteral orifice first

Persistence in stone basketing attempts in the face of a ureteral tear

Use of the holmium laser

Ureteroscopy in nondilated systems

Pulsatile saline irrigation to assist visualization

Obesity

History of urolithiasis

Neurogenic bladder

Spinal fracture

History of ureteral trauma

Observation

Oversewing the contusion with healthy ureteral tissue

Transureteroureterostomy

Ureteral stent placement

Ureteroureterostomy

CT without use of contrast material

CT with the use of contrast material, obtained 20 minutes after injection of the contrast agent

Furosemide (Lasix) renography

Intravenous pyelography

CT with use of contrast agent, obtained immediately after injection of the contrast agent

Bipolar cautery use during tubal ligation eliminates risk.

Surgery for endometriosis greatly increases the risk.

Most ureteral injuries are recognized immediately.

The total number of injuries has stayed steady over the years.

Indigo carmine dye eliminates the risk of injury.