A police crackdown on drunken crime over the weekend has seen a drop in hospital visits from people with alcohol related injuries.

The Australia and New Zealand operation, which targets troublemakers and alcohol-related anti-social behaviour, was aimed at promoting a message for people to consider the impact on others of excessive drinking.

Thousands of people were arrested in Operation Unite for numerous alcohol related offences.

The Royal Australasian College of Surgeons says there has been a clear reduction in hospital visits across the cross as a result.