The lifetime prevalence of kidney stone disease is estimated at 1% to 15% with the probability of having a stone varying according to age, gender, race and geographical location (Margeret S. pearle et al 2007)⁸. In Indian scenario urolithiasis constitutes one of the commonest reason requiring surgical intervention and approximately about 5-7 million patients suffer from calculus disease.

Aims and Objectives: To evaluate two levels of renal access in PCNL one supracostal and other infracostal and will evaluate  their outcomes in terms of:

• Number of access puncture sites required for complete stone clearance
• Stone clearance rates
• Safety
• Efficacy (Stone free status post op KUB)
• Complications

Materials and Methods: This study entitled “To Study the Outcomes of Supracostal and Infracostal Access Approach in Treating Renal Calculi using PCNL (Percutaneous Nephrolithotomy)” was conducted in the Post-graduate Department of Surgery, Acharya Shri Chander College of Medical Sciences and Hospital, Jammu from 1^st Nov 2016 to 31^st Oct 2017.

The site of calyceal puncture in supracostal group was superior calyx in 21 (70%), Middle calyx in 8 (26.67%) and inferior calyx in 1 (3.33%) of patients respectively, while in the infracostal group it was superior calyx in 5 (16.67%), middle calyx in 12 (40%) and inferior calyx in 13 (43.33%) patients respectively

Keywords: probability ,urolithiasis

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Dr Kulbir Singh Jat

Registrar, Department of Surgery GMC Jammu, India