Two typical scenarios of IF. Immediate postoperative X-ray of a 60-year-old woman with an acute displaced femoral neck fracture treated with internal fixation using Pinloc (A) and the corresponding 12-month follow-up X-ray (B), showing fracture healing. Immediate postoperative X-ray of an 80-year-old man with an acute displaced femoral neck fracture treated with internal fixation using Pinloc (C) and the corresponding 6-month follow-up X-ray (D), showing the non-union of femoral neck fracture.

<p>Two typical scenarios of IF. Immediate postoperative X-ray of a 60-year-old woman with an acute displaced femoral neck fracture treated with internal fixation using Pinloc (A) and the corresponding 12-month follow-up X-ray (B), showing fracture healing. Immediate postoperative X-ray of an 8...

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