Smoking, medial comminution, and single fixation as predictors of failure in the fixation of native distal femur fractures: a multicenter retrospective study over 109 fractures. - Garabano G; Juri A; Enghelmayer RA; Pereira S; Pesciallo C; Bidolegui F (European journal of orthopaedic surgery & traumatology : orthopedie traumatologie, 2026)