Score: Johansson classification
Use: Femoral prosthesis fracture
Type I
Fracture proximal to the tip of the prosthesis with the stem still in contact with the medullary cavity
Type II
Fracture extending distal to the tip of the prosthesis with dislodgement of the stem from the medullary cavity of the distal fragment
Type III
Fracture distal to the tip of the stem of the prosthesisReference
Classification and Diagnosis in Orthopaedic Trauma. Editors: Rahij Anwar, Kenneth W. R. Tuson, Shah Alam Khan. Cambridge University Press, 2008