The practice of surgery . material variationin the treatment. The patella is sometimes dislocated. The accident occurs througha blow upon the inner side of the knee, forcing the patella out of plumb,and carrying it over the edge of the femoral condyle even. If thepatella rests, balancing upon the condyle, we call the condition subluxa-tion. A curious and more unusual form of dislocation is that spokenof as vertical rotation, in which case the patella is turned up on its mechanism of these various displacements is obvious, and thetreatment is the most simple conceivable. Often it is ne
The practice of surgery . material variationin the treatment. The patella is sometimes dislocated. The accident occurs througha blow upon the inner side of the knee, forcing the patella out of plumb,and carrying it over the edge of the femoral condyle even. If thepatella rests, balancing upon the condyle, we call the condition subluxa-tion. A curious and more unusual form of dislocation is that spokenof as vertical rotation, in which case the patella is turned up on its mechanism of these various displacements is obvious, and thetreatment is the most simple conceivable. Often it is necessary merelyto anesthetize the patient and lift the leg toward the abdomen, whenthe patella at once falls back into place. If it does not spontaneouslyretreat, it can easily be manipulated back into its normal Fig. 651.—Outward dislocation of the patella (Hoffa). A good deal of swelling and pain may follow the reduction, but thissubsides in a few days under bandaging and massage. The knee is dislocated rarely. Theoretically, the knee may bedislocated in any direction, backward or forward, right or left, thoughthe backward displacement of the tibia on the femur is the most com-mon form of displacement. Those forms of subluxation of the tibiawhich are associated with tuberculous disease of the knee-joint illus-trate a common picture of dislocations of the knee. A^Tien the femur underrides the head of the tibia, we find the patellaforced upward out of its close association with the femoral this way there is produced a double dislocation or a dislocation oftwo joints, as it were—the tibia from the femur and the femur fromthe patella. It is obvious in the form of dislocation, such as Lothrop 940 MINOR SURGERY—DISEASES OF STRUCTURE reports, that the patella must leave the femur,
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectsurgery, bookyear1910
