Abstract
IN recent years the surgical approach to trauma of the urinary tract has become more conservative. In 86 per cent of renal injuries recovery will ultimately be so complete that no residual deformity can be detected on intravenous pyelography six months or more after the injury. Excluding cases with associated abnormalities, such as a hydronephrosis discovered by pyelography at the time of injury, the nephrectomy rate today is less than 3.3 per cent.1 The indications for exploring a renal injury are limited to rapid deterioration of the patient's general condition or a penetrating wound that converts the surrounding hematoma into . . .

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