Retrograde Intramedullary Nailing for Femoral Shaft Fractures in Elderly Patients with Previous Ipsilateral Dynamic Hip Screw Fixation.

Purpose: We present our experience in managing femoral shaft fractures in elderly patients with previous ipsilateral dynamic hip screw fixation for extracapsular neck of femur fractures using retrograde intramedullary nailing implants.

Methods: This was a prospective consecutive study of patients presenting with a femoral shaft fracture and an ipsilateral dynamic hip screw fixation treated with unreamed retrograde femoral nailing. The Wilde modification of the Neer knee score was used as a primary outcome measure.

Results: A total of 16 patients were included (5 males, 11 females), with a mean age of 82 years (range 74-101). All fractures were closed and were due to low-energy trauma. There were 7 patients with 32-A1 fractures, 5 patients with 32-A2 fractures and 4 patients with 32-B1 fractures. All patients had an ipsilateral 4-hole plate dynamic hip screw implant. Minor surgical complications were recorded in 5 patients. Two patients died due to medical complications and were excluded from the final analysis. All remaining 14 patients achieved satisfactory outcomes at 12 months of follow-up with a mean Wilde modification of the Neer knee score of 15.5 (SD 2.53; range 13-20).

Conclusions: Unreamed retrograde femoral nailing can achieve good functional recovery in elderly patients with a femoral shaft fracture and a previous ipsilateral dynamic hip screw fixation.