[Fixation of trochanteric or subtrochanteric fractures using dynamic external fixators].

We present a fixation system for trochanteric or subtrochjanteric fractures using a dynamic external fixator. The Citieffe/CH-N fixator was proposed for elderly patients with a significant operative risk (ASA III or IV). A long dynamic screw measuring 9 mm in diameter is inserted into the neck and the head of the femur on a guide wire through a tube protecting skin and muscles.

Ankle arthrodesis using a tibio-calcaneal external fixator.

The results of open ankle arthrodesis in 23 patients with primary and secondary ankle-talar arthritis are presented. All patients were treated with open ankle arthrodesis using the Citieffe/CH-N external fixator with pins inserted in the tibia and the calcaneus. Union rate was 91% (21 patients) at an average of 13 weeks (range, 12-16 weeks).