Fig. 3
From: High failure rate of proximal femoral locking plates in fixation of trochanteric fractures
A 79-year-old male with AO/OTA type 31A2.3 suffered mechanical failure and nonunion. a Postoperative radiograph showing loosening of proximal screws and varus collapse 36 weeks after surgery. b, c Postoperative radiograph showing that progressive loosening and penetration through femoral head of proximal femoral screws as well as shortening of femoral neck (44 and 56 weeks after surgery, respectively). d, e CT scan showing nonunion and penetration through femoral head (56 weeks after surgery). f Revision surgery of THA