Drop-foot is the inability to dorsiflex the ankle joint or foot, and is the result of any agent that impairs or abolishes the muscular power in the anterior group of leg muscles. The etiologic factors are: destructive changes in the muscles and tendons, toxic neuritis, as in lead poisoning, trauma to the external popliteal nerve, spastic paralysis and, most frequently, poliomyelitis, or infantile paralysis. Drop-foot may be simple, when only the anterior muscles of the leg are involved, or it may be associated with varus, valgus or flail-foot, if loss of muscle power is more extensive. As the anterior muscles of the leg are more frequently paralyzed than any other muscle group as a sequela of poliomyelitis, inability to dorsiflex the foot is a very common disability.
In June, 1923, I1 described before the American Orthopedic Association a surgical operation for the correction of drop-foot in connection with other
CAMPBELL WC. END-RESULTS OF OPERATION FOR CORRECTION OF DROP-FOOT. JAMA. 1925;85(25):1927–1931. doi:10.1001/jama.1925.02670250001001
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