A Predictive Method for Subsequent Avascular Necrosis of the Femoral Head (AVNFH) by Observation of Bleeding From the Cannulated Screw Used for Fixation of Intracapsular Femoral Neck Fractures

Abstract

It seems that bleeding from the holes of proximal cannulated screws is a simple and accurate perfusion assessment technique for predicting the development of AVNFH after a femoral neck fracture. Given that assumption, primary arthroplasty might be an appropriate choice as a treatment method in a nonbleeding-group patient whose treatment choice is ambivalent or who might not be able to undergo additional surgery should he or she develop a subsequent AVNFH after internal fixation of femoral neck fracture.