Is There a Stress Fracture of the Third Metatarsal?

A 19 year old cross country runner complains of three months of foot pain with running. Radiographs show a diapacial stress fracture of the third metatarsal and callous formation. What is the most appropriate next step in treatment? The correct answer to this question is for protected way bearing with crutches, with slow return to running. And five, percutaneous curtiona, wire fixation.