Inquiry of several well known orthopedic surgeons indicates that the literature has little to say regarding the relationship between sacro-iliac or lumbosacral strain and such trunk-twisting exercises as golf and polo, and that in their experience lame backs developing from such exercises seem to involve one side as often as the other.
Within the last few months three cases have come to my attention which showed uniform symptoms:
The age ranged from 35 to 45 years. The side involved was the left, all the patients being right-handed. The cause was golf practice (a) with clubs involving a brisk snappy twist of the trunk (mashie and especially niblick), not with clubs for distance (driver, brassie, number 1, or midiron), when (b) the same stroke was repeated steadily.
Single strokes with these clubs made in the course of play had not caused backache in any of the three subjects. Two of them