The patient will be asked to participate in a research project designed to determine the best way to prevent bleeding and promote patient comfort after having kidney stones removed. Two standard methods for ending the surgery are being compared to a newer method. In one standard method, the patient will have a tube draining urine from the kidney after the procedure. This tube may also prevent bleeding from the kidney. In another standard method the patient will have a tube left internally that drains urine from the kidney to the bladder and a stitch will be used to close the incision and deeper tissues in the back. In the third potential option, a tube would be left internally to drain urine from the kidney to the patient's bladder and the surgical site would be filled with a clot promoting agent (FloSeal) which is a FDA approved agent specifically formulated to stop bleeding during surgical procedures.

Inclusion Criteria:

• The patient has kidney stones that require treatment (tx) with percutaneous stone removal
• 18 years of age or over

Exclusion Criteria:

• Patient mentally impaired, have a chronic pain syndrome or disorder, or any condition that might alter the sensation of pain
• Patient taking coumadin
• Pre-existing percutaneous nephrostomy