| Classification | Description | Notes |
| Type 1 | Nondisplaced talar neck | AVN Risk 0-15% |
| Type2 | Displaced neck fracture with subtalar dislocation or subluxation | AVN Risk 20-50% |
| Type 3 | Displaced neck fracture with dislocation/subluxation of both tibiotalar and subtalar joints | AVN Risk 100% |
| Type 4 | Displaced neck fracture with dislocation/subluxation talonavicular, tibiotalar and subtalar joints | AVN Risk 100% |
References:
Melenevsky, Y., et al. (2015). “Talar Fractures and Dislocations: A Radiologist’s Guide to Timely Diagnosis and Classification.” Radiographics 35: 765 – 779.
Hawkins, L. G. (1970). “Fractures of the neck of the talus.” J Bone Joint Surg Am 52(5): 991-1002.
Canale, S. T. and F. B. Kelly, Jr. (1978). “Fractures of the neck of the talus. Long-term evaluation of seventy-one cases.” J Bone Joint Surg Am 60(2): 143-156.