Comparison the incidence of PDPH after median and paramedian spinal anesthesia technique in patients undergoing orthopedic surgery

Spinal Anesthesia is one of the safest Anesthesia methods with lower complications. The most common complication of spinal anesthesia is postdural puncture headache (PDPH) and it is very important to know which factors may increase the incidence of it، some factors that have relationship among variable and postdural puncture headache are studied and demonstrated. Method and material: In a clinical trial study 150 patients who matched by age and sex، entered in following groups: median and paramedian techniques، randomly. Spinal puncture after the preparation of the patient performed in sitting position (for median approach or lateral position (for para median approach)، the study was carried out in a double blind fashion، patients were evaluated 1 st postoperative day by an other Resident whether they have a headache or any related problems. There were no difference between the two groups by sex and age. 7 patients (9. 3%) in median and 8 patients (10. 7%) in paramedian groupe had PDPH (P=0. 875 & Odds ratio: 0. 862، CI95% 0. 676-1. 048) There was no difference between the two methods in the incidence of PDPH.