Abstract
The usefulness of arthro-MRI with direct injection of Gd-DTPA into the hip joint cavity principally for discrimination of limbus rupture was examined for 33 joints of 25 patients. In 26 joints, contrast in the periphery of the limbus was clearer than on T1 and T2-weighted images, and in 12 joints limbus rupture which was not apparent on T1 and T2-weighted images was clearly depicted. In comparison to T1 and T2-weighted images, arthro-MRI yielded more information about the acetable, bone head cartilage surface, articular limbus and intraosseous cysts, bursa, and intra-articular free bodies. Arthro-MRI enables discrimination between rupture and degeneration of the joint limbus, which is difficult using T1 and T2-weighted images, and is therefore useful for diagnosis of diseases of the limbus.
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