Periprosthetic hip fracture

Classification: (Coventry)
Happy Hips: Stem not loose - address fracture only
Unhappy Hips: Stem loose - consider prosthesis revision

Volume 38, issue 6 of Injury has dedicated articles on periprosthetic hip fractures

Reference:
Ninan TM et al. Classification of femoral periprosthetic fractures. Injury
Volume 38, Issue 6, June 2007, Pages 661-668