3D monitors for the operating room are available. In fact, they are becoming more popular as they engage the clinical staff. The best monitors are 55″ LCD/LED and 3D glasses must be worn. 3D glasses come in two models: passive and active. The monitor dictates which model must be used (note that passive glasses are very inexpensive and active glasses require batteries). 3D monitors now come in a variety of sizes as well as 4K resolution
Please also note that there are consumer retail type 3D monitors and medical grade 3D monitors that will work with any 3D camera manufacturer. Check with your local operating room to find out which type are allowed.