The effect of anterior support screw (AS2) in unstable femoral trochanteric fractures: A multicenter randomized controlled trial.

Objectives: This study was conducted to verify the effectiveness of Anterior Support Screw (AS2) for unstable femoral trochanteric fractures.

Design: A multicenter, prospective, randomized controlled trial SETTING: This study was conducted across 15 academic medical centers in Japan PATIENTS/PARTICIPANTS: We enrolled 240 cases of femoral trochanteric fractures with posterior crushing and intramedullary displacement of proximal bone fragments across 15 institutions in Japan.

Intervention: All patients were subjected to a reduction in which the anterior cortex was brought into contact.