CORRInsights®: Epiphyseal Arterial Network and Inferior Retinacular Artery Seem Critical to Femoral Head Perfusion in Adults With Femoral Neck Fractures
In their anatomical study, Zhao and colleagues concluded that the epiphyseal arterial network and inferior retinacular artery systems could be two important structures for maintaining the femoral head blood supply after femoral neck fractures. The current study reinforces the conclusions of previous studies [1, 2, 4, 8] that favor inferior retinacular artery because of its potential to revascularize the avascular femoral head .
The conclusions by Zhao and colleagues are subject to a broader assessment of intraosseous and extraosseous vascular systems, which constitute a comprehensive composite combination. The intraosseous and extraosseous vascular systems, however, are not mutually exclusive when considering interrelated anastomotic channels for potential revascularization. The current study does not, however, specifically consider dynamic revascularization and relative contribution of the lateral circumflex artery to femoral neck with potential for nonunion .