805 
EXCISION OF LATERAL CARTILAGE IN QUITTOR. 
cartilage, as the operation, though more severe, is less liable to trouble¬ 
some complications, and is usually final. 
After the whole field of operation has been disinfected the dressing is 
applied. It consists of four to eight thicknesses of iodoform gauze, 
enveloping and stretching well beyond the wound. Over this is 
arranged a pad of antiseptic jute, filling up the crescent-shaped excava¬ 
tion in the horn, and pads of the same material are so adjusted as to 
bring the flap of skin and coronary substance into accurate contact with 
the tissues left after removal of the cartilage. A calico bandage secures 
the whole in place. To prevent displacing the flap the bandage should 
be applied from above downwards. The Esmarch bandage is only 
removed when the dressing has been securely fixed.in position. The 
latter usually becomes soaked with blood in a very short time, but this 
is of no importance, as the blood remains aseptic. A leather shoe or 
straw sandal is used to keep the parts clear of the ground. 
Provided no great pain is shown and the dressing does not emit any 
unpleasant odour or discharge, it may be left in position as long as ten 
or twelve days. Increasing pain or offensive discharge necessitate 
a change. As, however, the second dressing can seldom be as complete 
or as accurately adjusted as the first, the change should only be made for 
good reason. This operation has given good results, and is worthy of 
trial in cases which prove intractable to injections and medical treatment. 
YI.—LAMINITIS. INFLAMMATION OF THE SENSITIVE 
LAMINA. 
The term laminitis is used to describe a spontaneous diffuse dermatitis 
superficialis of the sensitive laminae. It sometimes results from chills, 
sometimes from errors in diet or other causes, usually affects both fore 
feet, sometimes the hind feet in addition, but seldom these alone. 
The affection starts as a severe hyperaemia of the sensitive laminae. 
Exudation soon follows, and is associated with active proliferation in the 
well-developed layers of the rete. The immediate result is to loosen 
the connection between the hoof and its matrix, and as separation is 
favoured by the weight of the body, especially at the surface of the 
sensitive laminae, the most extensive of the pathological changes occur 
at this point. Within twenty-four hours after onset of the disease, the 
parts are much reddened and swollen, and proliferation of the young- 
epithelium is taking place on the surface of the sensitive laminae, especi¬ 
ally in the region of the toe. Siedamgrotzky was perhaps the first to 
point out that the pressure of the body-weight, and the pull of the flexor 
pedis perforans tendon on the os pedis, not only thrust the bone down¬ 
wards in toto, but that the pull of the flexor tendons, which are rendered 
