This study is based on a series of 155 cases of fracture of the base of the radius by indirect violence in 140 adults, observed in hospital and private practice and all personally examined by me.
As 10 per cent of all fractures1 occur at the base of the radius and as the literature on the subject exhibits such diversity of opinion concerning etiology, pathologic process, treatment and end-results, this study was undertaken in 1926. It has been continued since then and includes cases of fracture occurring between the years 1913 and 1932.
The average length of time that elapsed between the fracture and the follow-up examination was sixteen months and the longest time nineteen years, while no case has been included in which the fracture had occurred less than three months prior to the follow-up examination.
Throughout this study an attempt has been made to correlate the anatomic