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He had no signs at all of wrist-drop, there were no suspicious signs on his gums and he had never suffered from constipation or anything like lead colic.

He slipped on the ice, however, and sprained his wrist, and the next day turned up with a typical lead wrist-drop.

Weakness or paralysis of the extensors of the wrist and hand results, giving rise to the characteristic “wrist-drop.”

A year later the wrist-drop still persisted.

Three weeks later, radial sensation returned; but the triceps was very weak, and wrist-drop was complete.