Unification of terminology is very important but difficult to achieve. In different countries it differs according to the language applied. Just an example. The English-speaking collegues continue to use"osteoarthritis" instead of the correct "osteoarthrosis". Why?

Specifically about gallbladder surgery I am not aware of gold standard methodology, of course there are textbooks and centres with extensive experience giving their own guidelines and steps of the procedure, but a Universal step-by-step approach that's considered optimal doesn't exist as far as I know. Within clinical research there have been attempts made and happening at the moment. The most straight-forward methodology is semi-structured interviews with experts and then a Delphi-style consensus process validated by a future meeting. Something like this happened with minimally invasive total mesolectal excision - Please see https://www.ncbi.nlm.nih.gov/pubmed/?term=standardization+tme+miskovic

Thank you for your respond guys... unfortunately i thought there wont be such detailed standards but maybe a general aproach guideline like (1) incisioin (2) preparation of tibia (3) prep of femur (4)... and so on (just an example)

Yes, in our institute there is a central body which contole all these affairs.

I am not an orthopaedic surgeon my self, but I've often seen my oath colleagues using the OA app on their phones and it has rather detailed instructions on how to perform arthroplasties. https://www2.aofoundation.org/wps/portal/surgery - this is their website.

There is no international institute or committee that 'regulates'  or ' provide general structured models.... of surgical procedures'.

Most textbooks and academic journals on technique present a logically structured and organised approach to procedures. These are not standardised. There would be variations in technique, justified by authors, for various clinical reasons, as appropriate.

Most surgical procedures have multiple approaches and techniques, as described in journals and textbooks. These vary in different institutions, and geographically.

Also, technology is changing procedures, and a structure appropriate at one point in time, would be inappropriate with a change in this area. This allows for innovation and advancements in surgery.

In our institute there is a central body to regulate the standard of all research works and including clinical works

I agree entirely with Trevor. Dear Dustin, I will tell you a story from Leipzig. As a doctorant at the Leipzig Uni-Klinik (1977-1980) I asked the late Prof. Peter Matzen (Senior) what is the most appropriate approach for THA? He answered me shortly: the one that the surgeon masters best and uses best.

Interesting question. I agree that still there are not standardized terminology for surgical procedures. In the future we need to organize Standardization meetings for  such interesting questions.