keyhole surgery
noun /ˌkiːhəʊl ˈsɜːdʒəri/
  /ˌkiːhəʊl ˈsɜːrdʒəri/
 (British English) (North American English arthroscopic surgery)
 [uncountable]- medical operations that involve only a very small cut being made in the patient’s bodyTopics Medicinec2