This case is, I believe, of sufficient interest from a developmental standpoint to warrant its being recorded. Whether it is just one of the freaks of development that we encounter so often, or whether it has some atavistic significance, I am not prepared to state.
Private A. J. L., white, aged about 24,1 was admitted to our hospital area at Mars-sur-Allier, France, complaining of "joint trouble." As long as he could remember, he had had only limited motions in both his forearms. The condition had been becoming progressively worse. Flexion and extension were somewhat limited and painful. There was only a minimum of pronation and supination.
Clinically, both the arms were held in the position of mid-pronation. Extension and flexion of the forearm on the arm was but little limited, the patient complaining of slight pain during these motions. That there was true ankylosis could easily be inferred by
Kaufman J. A CASE OF BILATERAL CONGENITAL FUSION OF THE RADIUS AND ULNA. JAMA. 1919;73(24):1842. doi:10.1001/jama.1919.26120500003011d
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