Would also highly recommend Dr. Kevin Stiffler of VRCC for an orthopedic surgeon.  He did Stella's TPLO surgery (ACL repair) and he did an amazing job.  The entire staff is very responsive post-op (they are open 24 hours a day/7 days a week) - they have a Pet Physical Therapist on-staff who consulted with us (free of charge) at each visit and showed us how to do PT on her knee.  They are also an emergency vet and I would take either of my Corsos there before the closer emergency vets that we've had experience with.