Laparoscopic cholecytectomy can be by starting the dissection at the triangle of calots or as a fundus first dissection.

Dissection can be with electrocutery or ultrasonic. The optimal technique or the optimal way of dissection has to be established. Patients are at 4 hospitals randomised to the different techniques and the different methods of dissection.

Patients at the participating hospitals are randomized to:

1. dissection starting at the triangle of Calots with electrocautery.
2. dissection by fundus first technique with electrocautery.
3. dissection by fundus first technique with ultrasonic dissection.

Inclusion Criteria:

• laparoscopic cholecystectomy

Exclusion Criteria:

• age >Z65
• ASA >3
• obesity
• previous extensive gastrointestinal surgery