ABSTRACT
MR imaging provides useful information in assessing the elbow joint. It allows depiction of muscles, ligaments, and tendons as well as direct visualization of nerves, bone marrow, and hyaline cartilage. The aim of the present work was to study the gross anatomy and the MR anatomy of the elbow joint as well as to distinguish the normal anatomic landmarks from true disease. The material of this study included 20 cadaveric elbow joint specimens and 10 healthy volunteers for MR imaging. Dissection, sectioning of the elbow joints at multiple levels, and histological examination of triceps tendon were performed. MR imaging of the elbow joints of the 10 volunteers at multiple planes was performed as well. The MR imaging findings were correlated with the anatomical features. This study primarily addresses a number of normal anatomic structures within the elbow joint which should not be misinterpreted by radiologists, including the transverse trochlear ridge, as well as the pseudo-defects of the trochlear groove and the capitellum