Atlas and epitome of traumatic fractures and dislocations . Fig. 11.—Specimen of a well-developed false joint. Specimenshown in figure 10 after maceration. On the posterior aspect of thelower fragment of the humerus a kind of cup-shaped expansion isseen which articulates with the extremity of the upper fragment ; thelatter has undergone but slight alteration. The cup-shaped expansionis formed entirely by periosteal deposit, the medullary cavity is almostcompletely occluded at the extremities of both fragments, includingthe free lower extremity of the lower fragment. GENERA L CONSIDER A TIONS.
Atlas and epitome of traumatic fractures and dislocations . Fig. 11.—Specimen of a well-developed false joint. Specimenshown in figure 10 after maceration. On the posterior aspect of thelower fragment of the humerus a kind of cup-shaped expansion isseen which articulates with the extremity of the upper fragment ; thelatter has undergone but slight alteration. The cup-shaped expansionis formed entirely by periosteal deposit, the medullary cavity is almostcompletely occluded at the extremities of both fragments, includingthe free lower extremity of the lower fragment. GENERA L CONSIDER A TIONS. 57 The interposition of soft tissue, especially of muscle-fibers, forms an absolute obstacle to firm union, and. Fig. 12.—False joint of many years standing, in the left forearm,from loss of bone tissue. Caused by severe fracture sustained in earlylife. Male, fortj^-four years of age, had a severe fall at the age ofeight and sustained a multiple fracture of the left forearm. Severalpieces of bone were removed. The patient was treated in clinic fornine months, but the arm remained i^ractically useless. At presentthere is an obtuse-angled ankylosis of the left elbow, and the fingersof the left hand are undeveloped, flexed, and immovable. Theleft forearm is 11 cm. shorter than the right, and shows a falsejoint at the junction of the middle with the lower third. In theperipheral segment the radius is preserved, while the ulna is com-pletely wanting. There is an absolute want of control at the falsejoint, the peripheral segment falling down with the hand unless it issupported. The patient improvised a splint which enables him par-tially to oppose the thumb against the fingers, which are
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectfractur, bookyear1902
