Talar neck fracture

Talar neck fractures extend through the thinnest cross-sectional portion of the talus, just proximal to the talar head. They represent one of the most common types of talus fracture (~30-50%), along with chip and avulsion fractures of the talus (~40-49%). These fractures are commonly associated with subtalar dislocation and/or posterior body fractures 4.

These fractures usually result from hyperdorsiflexion.

Hawkins classification 1:

  • type I: non displaced fracture
  • type II: displaced fracture with subluxation or dislocation of the subtalar joint and a normal ankle joint
  • type III: displaced fracture with body of talus dislocated from both subtalar and ankle joint

Canale and Kelly 2 described a rare type IV category which in addition to features described for type III there is dislocation or subluxation of the head of the talus at the talonavicular joint.

  • hardware complications
    • loosening
    • backing out
    • hardware or peri-hardware fracture
  • tendon entrapment or injury
  • risk of avascular necrosis (AVN) increases with increasing classification type
    • type I fractures have 0%–15% risk
    • type II fractures have 20%–50% risk
    • type III fractures approach 100% risk
    • type IV fractures have 100% risk

The classification of talar neck fractures was described by Dr Leland G Hawkins in 1970 1.


Article information

rID: 18268
Synonyms or Alternate Spellings:
  • Hawkins classification of talar neck fractures
  • Hawkins classification
  • Talar neck fractures
  • Neck of talus fractures

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Cases and figures

  • Figure 1: type 1
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  • Figure 2: type 2
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  • Figure 3: type 3
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  • Figure 4: type 4
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  • Case 1: type 1
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