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[Total femur prosthesis in non-oncological patients].

INTRODUCTION
Total femoral replacement (TFR), it is an uncommon surgery in non-oncological patients. Our main objective is to review our total femur replacement surgeries and analyze functional and clinical outcomes.


MATERIAL AND METHODS
We retrospectively review our series of seven non-oncological patients treated at our center with a TFR from 2011 to 2014. After excluding patients (Oncological patients or non-follow up) we revised four patients. Paprosky bone loos classification and different values were studied: number and time of surgeries, complications, revision surgeries, functional scales, and follow-up.


RESULTS
Mean age of 78.5 years. According to Paprosky classification of femur bone loss: 1 IIIA, 2 were IIIB, 1 IV. On the other side acetabular loss: 2 I, 1 IIA, 1 IIB. Surgical time for TFR was 110 minutes on average. Three patients were need revision surgery due to instability. And every single patient suffered from chronic infection. Mean range of motion was 85 flexion, 0o extension. Comparing preoperative and postoperative Harris Hip Score for hip function was 54.9 points and Enneking score was an average of 14.25 points better in our patients with TFR. Visual analogue pain score was on average less than two points. Mean follow-up is almost seven and a half years.


CONCLUSIONS
TFP has not a standardized surgical protocol yet. Infection is always present in our series and acetabular constrained components in TFR avoid instability complications. TFP should be implanted only in selected patients.