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In the vertebral anomalies, congenital synostosis of the cervical vertebrae is not uncommon. In 1912, Klippel and Feil examined a patient with the unusual clinical findings of marked shortening of the neck, low posterior hairline and severely restricted neck motion. Since that time, it has been well known as Klippel and Feil syndrome.During past 3 years, we treated 4 cases surgically which showed cervical disc herniation and cervical spondylotic radiculopathy in the adjacent vertebrae.All cases are male with age range from 45 to 72 years old (average 52). Congenital synostosis of C3-4 vertebrae was seen in 2 cases, C4-5 in 1 case, and synostosis of occipit to CI, C2 in 1 case. Except one case, cevical disc herniation and cervical spondylotic radiculopathy was found in the disc space below the synostosis of cervical vertebrae.

Influence to the adjacent intervertebral disc space in the congenital synostosis of the cervical vertebrae.