UCSD Musculoskeletal Radiology

bonepit.com

MSK Classifications

 

Femoral head fractures - Pipkin Classification


Type I         Fracture below fovea / ligamentum (small), Does not involve the weightbearing portion of the femoral head

 

Type II         Fracture above fovea / ligamentum (larger), Involves the weightbearing portion of the femoral head 

 

Type III        Type I or II with associated femoral neck fx.  High incidence of AVN

 

TypeIV         Type I or II with associated acetabular fx (usually posterior wall fracture)