UCSD Musculoskeletal Radiology

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MSK Classifications

 

Hawkins Talar Neck Fxs

Type 1 Nondisplaced                                                  AVN < 10%

   

   

       

Type 2  Subluxed posterior subtalar jointAVN 40%

         

     

   

Type 3 + Tibiotalar dislocation                                     AVN 90%

       

         

   

Type 4 + Subluxed talonavicular                        AVN 100%