Which of the following best describes the mechanism of Morton's neuroma?
-
A
Avascular necrosis of the metatarsal head
-
B
Perineural fibrosis of the common digital nerve, most often in the 3rd interspace
-
C
Stress fracture of the 4th metatarsal shaft
-
D
Bursitis between the 2nd and 3rd metatarsal heads