Can a damaged crown post be drilled out and removed?

My post broke on my crown. Roughly in half. The dentist was able to re-cement the crown but it is loose. But, its loose again and feels like it is close to falling out. Dentist said if this one broke i would 'have' to get a bridge. I really would prefer to avoid extracting the tooth or putting in a bridge. The current crown/post held out for about 30 years. I would just assume drill the post out and have a new crown put in.