A system for performing anterior cruciate ligament reconstructions is provided. The system includes a surgical guide instrument defining an elongate body having a hand-graspable handle and a head section including a distal phalange and a proximal open-faced slot. The distal phalange is contoured to anatomically conform to the femur and includes a notch section engageable with the intercondylar notch. The open-faced slot includes a stop member. The system further includes a guide wire operably receivable by a guide wire sheath to form a guide wire assembly. The guide wire assembly is received by the open-faced slot wherein the stop member is structured to stop the sheath from exiting the slot. The surgical guide instrument can direct the guide wire to an anatomic position on the femur and ensure a safe and usable femoral tunnel.
