Abstract

Piriform fossa, trochanteric fossa and greater trochanteric tip have each been described as entry points for antegrade femoral nailing. However, the terminology used for these entry points is confusing.The accuracy of the entry point nomenclature in published text and illustrations was recorded in this review study. The trochanteric fossa, a deep depression at the base of the femoral neck is indicated as ‘piriform fossa’ in the vast majority of the publications. Other publications indicate the insertion site of the tendon of the piriformis muscle on the greater trochanteric tip as ‘piriform fossa’. As a result of recurrent terminology error and consistent reproductions of it, the recommended entry point in literature is confusing and seems to need standardisation.The piriform fossa does not appear to exist in the femoral region. The trochanteric fossa is the standard entry point which most surgeons recommend for facilitating a standard straight intramedullary nail, as is in line with the medullary canal. The greater trochanteric tip is the lateral entry point for intramedullary nails with a proximal lateral bend.

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