inferior vena cava. n. Abbr. IVC. A large vein formed by the union of the two common iliac veins that receives blood from the lower limbs and the pelvic and abdominal viscera and empties into the right atrium of the heart.Also called postcava.he inferior vena cava contains a semilunar valve that is rudimentary in the adult but very large and important in the fetus. The vessel receives blood from the two common iliacs, the lumbar veins, and the testicular veins. Compare superior vena cava. Inferior vena cava and its tributaries.
Arthroscopy (also called arthroscopic surgery) is a minimally invasive surgical procedure on a joint in which an examination and sometimes treatment of damage is performed using an arthroscope, an endoscope that is inserted into the joint through a small incision.rthroscopy can also be performed just for diagnosing and checking of the knee; however, the latter use has been mainly replaced by magnetic resonance imaging. During an average knee arthroscopy, a small fiberoptic camera (the arthroscope) is inserted into the joint through a small incision, about 4 mm (1/8 inch) long.
Arthrography is medical imaging to evaluate conditions of joints. It can either be direct or indirect. Indirect arthrography is a medical imaging technique in which contrast material is injected into the blood stream and eventually absorbs into the joint.With direct arthrography, however, the contrast material is injected directly into the joint.Direct arthrography is the preferred method because it is better for distending or enlarging the joint and imaging small internal structures, thus allowing for better evaluation of diseases or conditions within the joint. Direct arthrography is particularly effective for detecting disease of the structures within the joints such as ligaments, tendons and cartilage. 2  This is particularly true for the shoulder in the setting of shoulder dislocation and in the hip, wrist and elbow.