—Carter et al make several excellent points. The most interesting is the observation that the second stage of labor was short for seven of the 12 newborns with clavicle fractures. It would be interesting to know the length of the second stage of labor for the other 800 infants without clavicle fractures. Unfortunately, we did not analyze our data with regard to the length of second stage of labor.
We also found it interesting that at one institution, Carter et al clinically found a high incidence (12 [1.5%] of 812 newborns) of newborn clavicle fractures. It would be interesting to know whether the 800 infants without clavicle fractures had been examined for evidence of clavicle callus at approximately 2 to 4 weeks of age.