Background  and Objectives  :Modified  three – port laparoscopic  cholecystectomy is safe and  economical.  It was another choice of surgery. This study aims to compare between modified three – port laparoscopic cholecystectomy  and standard  four – port  cholecystectomy.

Materials and Methods  :   Non – randomized clinical trial at  Department of surgery , Kalasin hospital.  Sixty patients with  symptomatic gall  stone, who were admitted at the hospital during  January  2004 to December 2006 were operated.  These patients were divided into two groups equally . Group I patients were operated by modified three port laparoscopic  cholecystectomy . Group II patients were  operated by standard four – port laparoscopic  cholecystectomy. Both groups were operated by the same surgeon. The  operation time , postoperative pain , lenght of hospital stay, postoperative complication and hospital cost  were analysed.

Results :  Thirty patients in group 1 were 10 males  and 20 females  at 27-  77 year  of age  (average 51.2 ± 13.1 year). The body weights were  45 – 82 kilograms average  66.5  ±  8.7  kilograms. There were 1 patient who had  DM and 1 patient had  hypertension  and  one patient with both diseases. Group II consisted of 9 males and 21 females at   20 – 76 year of age  (average 50.3  ± 12.8 years). Their body weight were 44-84 kilograms (average 64.8  ± 7.7 kilograms).  There was 1 patient who had DM, one patient had  Hypertension and one  case with both diseases.  There were no differentce in  operating  time,  hospital stay and postoperative  complication (p>0.05).  In group  I post operative pain and hospital cost were less than Group II significantly (p < 0.05)

Conclusion : Modified three - port  laparoscopic cholecystectomy was as safe as the standard four port laparoscopic   cholecystectomy and it caused less pain and less  expensive .

Key word :   standard four port, laparoscopic cholecystectomy : modified  three  port, laparoscopic   cholecystectomy ,  cost,  post operative  pain