Fig. 1Classification of intertrochanteric fractures (AO/OTA classification).
Fig. 2
(A) Intertrochanteric fracture with lateral wall fracture fixated by dynamic compression screw. (B) Failure of internal fixation.
Fig. 3Serial hip anteroposterior and axial X-rays of a 59-year-old female. (A) Failure of internal fixation (dynamic compression screw) caused by malreduction. (B) Revision osteosynthesis using a dynamic compression screw and a trochanteric stabilizing plate. (C) At 18 months after revision, the fracture was well united.
Fig. 4
(A) Unstable intertrochanteric fracture in an 82-year-old male (AO classification 31-A2.2). (B) Immediate postoperative x-rays (antero-posterior view & lateral view). Unsatisfactory reduction and incorrect position of blade. (C) Cut out of the blade. (D) A revisional bipolar hemiarthroplasty was performed.
Fig. 5Nonunion of the greater trochanter after bipolar hemiarthroplasty. (A) Preoperative left hip anteroposterior (AP) x-ray of a 95-year-old female. (B) Immediate postoperative left hip AP. (C) Postoperative four-month left hip AP showing the displaced greater trochanter.