Ankylosis

“ Fixation following upon prolonged immobilisation after fracture or dislocation, or any of the forms of arthritis or suppurative or tuberculous disease of the adjacent portions of the mandible, is also met with. The ankylosis may be fibrous or osseous, and may be intra- or extra-articular.
The clinical features vary with the degree of separation of the jaws. There is always some deformity, and more or less interference with mastication and speech. ”

“ Occasionally general ankylosis is found with curvature, as in Spondylitis Deformans.
Many Chiropractors mistake failure to move a vertebra with an attempted adjustment for evidence of ankylosis. In nine cases out of ten such failure is due to other reasons, ankylosis being very infrequent. It is a much abused excuse59 for incapability. Free movement between spinous processes is absolute proof that the vertebrae are not ankylosed. ”

“ In the region of the ankle, wrist, and joints of the thumb, however, compound dislocation is sometimes met with uncomplicated by other lesions. The great risk is infection, which may result in serious impairment of the usefulness of the joint or even in its complete destruction, results towards which the concomitant injuries materially contribute. In many instances where infection has occurred, ankylosis is the best result that can be hoped for. ”

“ The treatment recommended by us for open joints, in which we wish to prevent ankylosis, is, first, to shave all hair from the area surrounding the wound, following with a thorough cleansing of the skin and disinfection of the wound, and then to inject a twenty per cent Lugol's solution in glycerin into the wound. This should be repeated two or three times a day, each time enough of the solution being injected to fill the joint capsule, thereby securing the flushing effect. ”

“ This difference is present in all joint affections of the extremities and, in passing, it is well to say that infection usually increases every manifestation of pain. Infection occasions more pronounced local symptoms of inflammation and, because of the rapid progress of necrotic destruction of cartilage, the course of the affection is usually rapid; ankylosis is a frequent result and loss of the subject is often inevitable. However, in non-infective arthritis of the fetlock joint, prognosis is favorable. ”

“ Bahr has confirmed this, and has found that ankylosis often results. In cases where the hip- joint is affected, removal of the inflamed iliac glands draining the area appears to relieve the condition.
ELEPHANTIASIS
Its prevalence.— Elephantiasis is by far the most frequent manifestation of filarial invasion, and is exceedingly common in some of the endemic districts. Thus, in certain districts in Cochin about 5 per cent, of the population, in Samoa about every second individual, in Huahine seven-tenths of. the adult male population are affected. ”

“ Ultimately fibrous adhesions, resulting in ankylosis, may occur. Suppuration very rarely takes place, and it is probable that in such cases pyæmia is added to gonorrhoeal arthritis.
[p. 104] SYMPTOMS.—Gonorrhoeal rheumatism may attack any of the joints; it most commonly invades the larger at first, more especially the knee; the ankle is next in order of frequency, and then succeeds the shoulder, closely followed by the smaller joints of the hands and feet, which are very seldom affected primarily and antecedently to the larger joints. ”

“ Owing to the relative positions of the sexual openings, the worms in conjugation look like the Greek .
Reproduction and mode of infection.—The female ankylostomes produce a prodigious and never-ending stream of eggs (Fig. 168, b) , which pass out in the fæces. As already stated, while in the body of the host the development of the embryo does not advance very far; but on leaving the human host it proceeds, in suitable circumstances, so rapidly that in one to two days a rhabditiform embryo (0·2 mm. by 0·014 mm.) is born. ”

“ Convalescence.— The dieting of convalescents from serious ankylostomum disease must, for a time, be very carefully conducted. In such, a rich, full dietary is to be avoided until the powers of digestion have become re-established; otherwise, enteritis and diarrhœa may prove very troublesome and retard recovery —perhaps prevent it altogether. Iron and arsenic are indicated as blood restorers.
Prophylaxis.— In devising a system of prophylaxis for ankylostomiasis, the fact that it is by means of the fæces of the already infected that the parasite is spread must be kept prominently in view. ”

“ In such, any additional cause of malnutrition, as a swarm of ankylostomes, and a daily though perhaps small loss of blood, may be sufficient to turn the scale against them. In those countries, as elsewhere, there are many who live just on the border-land between health and disease; to such the ankylostomum may prove the last straw that breaks the camel's back.
It may be that in some individuals with special susceptibility, some toxin developed by the parasite, just as in certain cases of Dibothriocephalus latus infection, produces a special type of anæmia. ”

“ The rate of progress is very different in different cases. In some a high degree of anæmia may be attained, and even a fatal issue ensue within a few weeks or months of the appearance of the first symptoms. Such rapid cases are rare; more frequently the disease is an exceedingly chronic one, ebbing and flowing or slowly progressing through a long series of years.
Should serious ankylostomiasis occur before puberty, the growth and development are apt to be delayed and stunted.
Diagnosis.— Provided its presence be suspected, ankylostomiasis is easily diagnosed. ”

“ Permanent degeneration of the alimentary canal, of the heart, liver, kidneys, and blood-forming organs, may remain, and even prove fatal, although the primary cause is no longer present. The history and the absence of other sources of anæmia are all we may have to go upon for diagnosis in such circumstances.
Ankylostomiasis is sometimes confounded with beriberi, and vice versa. The presence of paretic and cardiac symptoms not accounted for by the moderate degree of anæmia in beriberi, and their absence in ankylostomiasis, suffice for diagnosis. ”

“ During rainy weather the ankylostomum ova in the fæcal materials are hatched, and the larvae escape into, and possibly multiply in, the damp earth. The bare feet of the coolies are constantly soiled with this larva-laden earth, and in this way, in many tropical plantations, Looss's experiment is unintentionally carried out on a large scale. Dermatitis, vesiculation, and it may be pustulation or even extensive ulceration, and probably ankylostomiasis anæmia ensue. The services of the affected coolie are lost to the planter till the irritation or ulceration subsides and the anæmia is cured. ”

“ Parthenogenesis is not recognized as occurring in the protozoa, but was supposed by Schaudinn to take place in the case of the malaria parasite and to be responsible for the relapses of that infection.
These sporonts, still in the blood of the vertebrate host, develop into sexually differentiated cells (gametocytes) , which are quiescent until they are removed from the blood; when this occurs both male and female cells extrude two polar bodies preparatory to the sexual process, and are then known as gametes. ”

“ The fungus of actinomycosis develops equally well in most tissues. It destroys bone by erosion and spares only nerves and tendons. The pus from the affected region contains small yellowish granules ("sulphur grains") of irregular shape, attaining at most 0'75 mm. in diameter. They are soft and consist of an inextricable felted mass of inycelia. The threads are radially arranged at the periphery of the grain, and their free extremity widens into a bulbous, club-like termination (10-20 μ. long by 8-10 μ wide) . ”

“ Considering that the Gammeleira would have a drastic effect, I therefore prescribed two grammes of elaterium, to be divided into eight doses, of which he should take one every three hours.” Dissatisfied with this advice, however, Dr Wucherer goes on to say that on reaching home he carefully looked up the literature of the subject. “In a ‘Geologico-Medical Report’ by Professor Hirch, recorded in the ninety-sixth volume of ‘Schmidt’s Jahrbucher,’ I found how Griesinger had recognised the Anchylostoma as the cause of the Egyptian chlorosis, which was clearly identical with our hypoæmia. ”

“ During the time that the worm is being wound out, the part should be kept very clean and an antiseptic ointment applied.
There are other methods of treatment, but these can only be carried out under medical supervision.
The Hook Worm.—This is the American name for one or other of the species of ankylostomes which infect man. The disease they cause is known as ankylostomiasis, and it is common in many parts of the world, especially in the tropics. It chiefly affects natives, owing to their habits; but it occurs also in Europeans. ”

“ The reproductive organs ultimately produced on the same or on different individuals are of two kinds, the antheridia and archegonia; the origin of both is from single superficial cells of the prothallus. The antheridium (fig. 8) at maturity consists of a layer of cells forming the wall which encloses a group of small cells; from each of the latter a single motile spermatozoid originates. The archegonium (fig. 9) consists of a more or less projecting neck and the venter, which is usually enclosed by the tissue of the prothallus. ”

“ Dr Grenet sent the duodenum and a portion of the jejunum of an hypoæmic corpse to Le Roy de Méricourt, who compared the Anchylostomes with Davaine’s description, and recognised them as examples of A. duodenale.”
“In the year 1868 Dr Rion Kérangel found Anchylostomes in the bodies of hypoæmics in Cayenne. Thus, the occurrence of Anchylostomes in hypoæmics has been authenticated by Pruner, Bilharz, and Griesinger, in Egypt; by myself, Dr Moura, Dr Tourinho, and other physicians, in Brazil ”

“ In Actinosphaerium (Figs. 19, 21) , a large species, differing from Actinophrys only in the presence of numerous nuclei in its endoplasm, a peculiar process, which we have characterised as endogamy, results in the formation of resting spores. The animal retracts its rays and encysts; and the number of nuclei is much reduced by their mutual fusion, or by the solution of many of them, or by a combination of the two processes. The body then breaks up into cells with a single nucleus, and each of these surrounds itself with a wall to form a cyst of the second order.
{74} ”

“ This new septum defines a terminal short obtuse cell, the antheridium, which is thus borne on a narrow tube like a sort of pedicel. Immediately after the formation of the antheridia new productions show themselves, both around the oocyst and within it. Underneath this cell eight or ten tubes are seen to spring from the filament which bears it; these join themselves by the sides to each other and to the pedicel of the antheridium, while they apply their inner face to the oocyst, above which their extremities soon meet. ”

“ It has been found by Looss in pygmies from Central Africa, and by others in India (Assam, Burma, Ceylon) , West Africa, Rhodesia, Fiji, the Philippines, and elsewhere. Probably it is as widely diffused as A. duodenale; and in certain localities, Fjii and Ceylon for example, it is the commonest form of ankylostomum encountered.
The parasite (Figs. 181-3) .—N. americanus can be readily distinguished from Ankylostomum duodenale; it is a shorter and more slender worm. The male measures from 7 to 9 mm. in length by 0·3 to 0·35 mm. in diameter; the female, 9 to 11 mm. in length by 0·4 to 0·45 mm. ”

“ The more widely the limits of these problems are extended, the more probable does it become that the experimental testing of all possibilities will put us on the proper road for an explanation of the phenomena observed. Surely it would be absurd to limit the study of anaphylaxy only to a study of the behaviour of the blood; for it is more than likely that it is the cells of the body which ultimately play the chief part in the appearance of anaphylaxy. The behaviour of the blood plasma is possibly only a reflection of the defensive measures adopted by the cells of the body ”

“ Irritation and hypertrophy of cells, however, may be induced by parasites which never bring their protoplasm into direct contact with that of the host. Many Chytridiaceae penetrate the cells of plants, and grow inside them as short tubes, vesicles, etc., the protoplasm of which is separated by their own cell-walls from that of the host-cell; nevertheless hypertrophy and abnormal cell-divisions and secretions are induced, and the effect even extends to neighbouring cells—e.g. Synchytrium—showing [128] that some influence is exerted through cells themselves not directly affected. ”

“ Possibly the further development of the oökinete takes place within a capillary endothelial cell of the pigeon, but it is afterwards found within a leucocyte in the lung capillaries. In this leucocyte the parasite grows and breaks up into a number of small forms or merozoites; finally the leucocyte bursts, setting free the merozoites, which, entering red blood-corpuscles, assume once more the typical shape of the sporonts. The male sporont is easily distinguished from the female by the larger size of its nucleus and by the faintly staining properties of its protoplasm. ”

“ It may start in the marrow of the bone and by a slow extension gradually undermine the entire thickness of the bone itself. The growth may continue outward, and after working its way through muscle and skin finally break through and appear externally as stinking fungoid growths. The growth may at the same time work its way inward and appear in the mouth. The disease may also begin in the periosteum, or covering of the bone, and destroy the bone from without inward.
Actinomycosis of the lungs is occasionally observed, and it is not improbable that at times it has been mistaken for tuberculosis. ”