Observations on hallux valgus; based on a controlled series.

In view of tile varied accounts of the natural history of hallux valgus in man it seemed worth while to attempt a series of exact observations on established cases together with a comparable number of controls. \Vhile any marked differences between the two groups might be merely accidental, it is likely that a predisposing factor, if any such exist, would either be found among them, or at least closely related to such differences.