In 83 patients, cholecystectomy was performed from the median approach using rack retractors. Incisional hernia was detected in 1 of them, or in 1.2%, while in the group of patients who underwent cholecystectomy through oblique approaches, incisional hernia developed in 9.1% - in 3 of 33 operated patients. Optimality of access was studied by measuring the depth of the wound before and after correction, with the elimination of obstacles (liver and right costal arch). In order to eliminate interference, a universal rack-mount expander for the liver and gallbladder has been designed.
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