Sir.—In their recent article on RHS, Quan and Marcuse1 stated that: "It seems reasonable to instruct a parent how to attempt reduction at home...." They are quite correct; I have been instructing parents in this maneuver for 26 years, and most of the time they accomplish the reduction by themselves. It helps if the parents can be shown the maneuver at the time of the first dislocation; reinstruction by telephone when the next episode occurs is then likely to be successful. It is decidedly more difficult for parents to perform this maneuver at home on the occasion of the first dislocation; even with careful and repeated telephone instructions, most parents, in my experience, are unable to carry through the maneuver in the face of what they perceive to be an uncertain diagnosis, as well as against the vigorous resistance of a crying, frightened child. However, it is always