Background and objectives: Spinal anaesthesia is one of the most commonly used technique in anaesthesia. It is economical, safe, cost effective, easy, needs less sophisticated anaesthetic equipment, drugs, post operative care hence preferred over general anaesthesia and most popular because of its profound analgesia and muscle relaxation. Objectives of the present study were to know the incidence of post dural puncture headache (PDPH), number of attempts for successful sub arachnoid block and incidence of failed spinal anaesthesia by using 27G Quincke’s and Whitacre’s spinal needles.

Methodology: This one and half year randomized clinical trial was conducted in the Department of Anaesthesiology, BLDEU’S Shri. B.M. Patil Medical college hospital and research centre, Bijapur during the period of Dec 2012 to August 2014 on 110 patients. The incidence of PDPH, number of attempts and failed spinal anaesthesia were assessed.

Results: In this study female preponderance was seen. In the present study the 12.73% patients had PDPH in Quincke group and 1.82% patients in Whitracre group and this difference was statistically significant using test of proportion (p=0.02759).

Conclusion: Overall the Whitacre 27G needle has better results with respect to PDPH and number of attempts required for successful subarachnoid block whereas the incidence of failed spinal anaesthesia was less with Quincke 27G needle.