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At the back of the knee the popliteal artery can be felt beating. The dorsal artery of the foot can be felt beating on a line from the middle of the ankle to the interval between the first and second metatarsal bones. When the arm is raised to a right angle with the body, the axillary artery can be plainly felt beating in the axilla.
Cellulitis of the sole of the foot may follow whitlow of the toes. In the region of the ankle cellulitis is not common; but around the knee it frequently occurs in relation to the prepatellar bursa and to the popliteal lymph glands, and may endanger the knee-joint.
While the development of the collateral circulation after the ligation or obstruction from other cause of a main arterial trunk may be sufficient to prevent gangrene of the limb, it may be insufficient for its adequate nourishment; it may be cold, bluish in colour, and there may be necrosis of the skin over bony points; this is notably the case in the lower extremity after ligation of the femoral or popliteal artery, when patches of skin may die over the prominence of the heel, the balls of the toes, the projecting base of the fifth metatarsal and the external malleolus.
The vitality of the tissues is so low that the balance between life and death may be turned by the most trivial injury, such as a cut while paring a toe-nail or a corn, a blister caused by an ill-fitting shoe or the contact of a hot-bottle. In some cases the actual gangrene is determined by thrombosis of the popliteal or tibial arteries, which are already narrowed by obliterating endarteritis.
Popliteal, carotid and other aneurysms, which are not of traumatic origin, are sometimes dealt with on this plan, which is the old "Method of Antyllus" with modern aseptic conditions. Speaking generally, if an aneurysm can be dealt with surgically the sooner that the artery is tied the better. Less heroic measures are too apt to prove painful, dangerous, ineffectual and disappointing.
When the deep veins iliac, femoral, popliteal are involved, there is great swelling of the whole limb, which is of a firm almost "wooden" consistence, and of a pale-white colour; the œdema may be so great that it is impossible to feel the affected vein until the swelling has subsided. This is most often seen in puerperal women, and is known as phlegmasia alba dolens.
Hunter soon had a chance to make a practical application of the knowledge thus acquired. This was a case of popliteal aneurism, operations for which had heretofore proved pretty uniformly fatal.
It is not uncommon, indeed, on amputating above the knee, to find even the popliteal artery plugged by a clot. This should be removed at the amputation by squeezing the vessel from above downward by a "milking" movement, or by "catheterising the artery" with the aid of a cannula with a terminal aperture.
A popliteal aneurism, a Colles' fracture, a spina bifida, a tropical abscess, and an elephantiasis. How's that for a single haul?" "I'm sorry I missed it. But they'll come again, I suppose. What's up with the old gentleman?" A broken workman was sitting in the shadow, rocking himself slowly to and fro, and groaning.
The space behind the knee joint is called the popliteal space. The venous trunk formed by the veins coming from the intestines. It carries the blood to the liver. A defect of the accommodation of the eye, caused by the hardening of the crystalline lens; the "far sight" of adults and aged persons. Any projection from a surface; also, a method of performance; a procedure.
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