Percutaneous nephrolithotomy (PCNL) is one of the important options in the management of large (>2 cms) and complex renal calculi. Traditionally the prone position has been used to access the pelvicaliceal system as well as to remove renal calculi. Several modifications to this position have been suggested and reported by several urologists. We performed PCNL in an elderly female with a severe kyphoscoliosis by modifying the classical prone position.