الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
Abstract
percutaneous nephrolihotomy is the first choice for treatment of multiple and staghorn renal stones. The prone position is the classical position preferred by most surgeons. In 1987, Validivia developed the supine position for percutaneous nephrolithotomy. It was linked to obese patients, cardiac and chest patients that were contraindicated for the prone position.
As the position was used more by urosurgeons, studies have compared the two positions regarding stone free rate, operative time, complications and shorter hospital stay.
This study was designed to evaluate outcomes between prone and supine PCNL in multiple and stag horn stones.
The patients were randomly selected, all having multiple stone, stone size more than 2 cm, or staghorn stones. They were 80 patients divided into two groups, group (A) prone and group (B) supine.
The study excluded patients with renal anomalies, uncontrolled coagulopathy, pregnancy, immunosuppression, and ages less than10 years.
The study demonstrated a high significant difference in operation time between the supine and prone position, with shorter operation time in the supine than the prone.
The study has also demonstrated shorter hospital stay in the supine group than the prone group by 1 day. There was no statistically significant difference as regarding complications and hemoglobin DROP between the two groups.
Our study showed there was a high significant difference between supine and prone groups regarding stone free rates, as the supine position had a better outcome than the prone position