Audiological abnormalities in the Klippel-Feil syndrome.

Klippel-Feil syndrome (KFS) is defined as a short neck with decreased movement and low posterior hairline. Radiologically, there is a failure of cervical segmentation. Deafness is a well known associated feature and may be of sensorineural, conductive, or mixed type. The audiological assessment of 44 patients with KFS is reported. Thirty five were found to have abnormalities on audiological testing. The presence of other features in these patients, reviews of data from other reports, and the need for further study are discussed.