Can a 5th metatarsal stress fracture posterior tibial tendinitis?

This is a great question from a runner I've been helping in the Monday, Wednesday, and Friday coaching group. 

She had a fifth metatarsal fracture and wanted to know if this could actually cause posterior tibial tendonitis.

Since they're on the opposite sides of the foot, a lot of people think that it won't cause the same kind of problem, because you wouldn't expect to have problems on both the left and right sides of the same foot.

Can a fifth metatarsal fracture cause posterior tibial tendonitis? Well, that's what we're talking about today on the Doc On The Run Podcast.