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Updated: May 9, 2025
In the Cainotherium, also, the second metacarpal is developed, but is much shorter than the third, while the fifth is absent or rudimentary. In this respect it resembles Anoplotherium secundarium. This circumstance, and the peculiar pattern of the upper molars in Cainotherium, lead me to hesitate in considering it as the actual ancestor of the modern Tragulidae.
Sometimes, small bony or gristly nodules are to be found at the bases of these two metacarpal splints, and it is probable that these represent rudiments of the first and fifth toes.
When several bones and joints are simultaneously affected, and there are sinuses with mixed infection, amputation is usually indicated, especially in adults. #Tuberculous dactylitis# is the name applied to a diffuse form of the disease as it affects the phalanges, metacarpal or metatarsal bones.
All intermediate forms between the innocent chondroma and the malignant chondro-sarcoma are met with. Chondroma may occur in a multiple form, especially in relation to the phalanges and metacarpal bones.
Whether it be torn loose from its point of attachment or ruptured at some point proximal thereto, the position is the same heel flat on the ground, toe slightly raised and this raising of the toe varies in degree as the subject moves about. The pathognomonic symptom is the lax tendon during weight bearing, which may be felt by palpation of the tendon along its course in the metacarpal region.
In size the body measures from ten to twelve inches in length, but the arms are prolonged, and especially the metacarpal bones and phalanges of the four fingers over which the leathery wings are distended, till the alar expanse measures between four and five feet.
From this date until the 30th the man's condition improved somewhat. The progress of the gangrene was stopped, and the injured finger was disarticulated at the metacarpal articulation. Anesthesia was readily obtained, but the appearance of the second stage was hardly perceptible.
As has been mentioned in the chapter on diagnostic principles, if the condition is so painful that the subject does not relax the parts and crepitation is masked, local anesthesia is necessary. An anesthetic solution of cocain or novocain may be applied to the metacarpal or metatarsal nerves and an entirely satisfactory examination is then possible.
The carpal bones as they articulate with one another and with the radius and metacarpal bones, as classed by anatomists, form three distinct articular parts of the joint as a whole and are known as radiocarpal, intercarpal and carpometacarpal. These three pairs of articulating surfaces are all enclosed within one capsular ligament.
"'Is this a deformity or has the finger been cut off? our correspondent asked. "'The finger has been amputated, was the reply. 'If it had been absent from birth, the corresponding hand bone, or metacarpal, would have been wanting or deformed, whereas it is present and quite normal. "'How long have the bones been in the water? was the next question. "'More than a year, I should say.
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