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Is Klippel-Feil syndrome more common in males, females or is there an equal prevalence?
There is a female predilection and an incidence of approximately 1:40 000.
Fusion of C2, C3 and C4 vertebral bodies, suggestive of type II Klippel-Feil syndrome (full spinal imaging is required to confirm the type).
In addition to AP diameter at the level of the affected discovertebral joint is smaller than the diameter at the superior and inferior limits of the vertebrae adjacent to the uninvolved discs, which is called the wasp-waist sign.