From: A radiological classification system for talocalcaneal coalition based on a multi-planar imaging study using CT and MRI
Type
No. of feet (percentage)
I
Linear with or without posterior hooking
45 (65 %)
II
Talar overgrowth
10 (14 %)
III
Calcaneal overgrowth
13 (19 %)
IV
Complete osseous
2 (3 %)