Which SBS dysfunctional pattern has been demonstrated to be associated with nonsynostotic plagiocephaly?

Which SBS dysfunctional pattern has been demonstrated to be associated with nonsynostotic plagiocephaly?

• A. Lateral strain
• B. Rotation with flexion
• C. Compression
• D. Superior vertical strain

Answer: (A)

Deformational (nonsynostotic) plagiocephaly arises from external molding that creates unilateral asymmetry in the skull. In cranial osteopathy terms, this pattern most closely corresponds to a lateral strain at the spheno-basilar mechanism, where the SBS shifts side-to-side along the left–right axis. This lateral displacement fits the typical presentation of plagiocephaly, with one side of the skull flattening and the opposite side compensating, reflecting the asymmetric forces and sutural adaptations beneath the scalp. The other patterns describe different directions of movement: rotation with flexion is a torsion-type pattern with rotational and flexion components that don’t specifically match the unilateral transverse deformation seen in plagiocephaly; compression involves overall inward pressure that doesn’t emphasize the lateral, side-to-side shift; superior vertical strain describes a vertical, up-and-down movement of the SBS that isn’t the hallmark of the unilateral transverse flattening characteristic of deformational plagiocephaly.

Deformational (nonsynostotic) plagiocephaly arises from external molding that creates unilateral asymmetry in the skull. In cranial osteopathy terms, this pattern most closely corresponds to a lateral strain at the spheno-basilar mechanism, where the SBS shifts side-to-side along the left–right axis. This lateral displacement fits the typical presentation of plagiocephaly, with one side of the skull flattening and the opposite side compensating, reflecting the asymmetric forces and sutural adaptations beneath the scalp.

The other patterns describe different directions of movement: rotation with flexion is a torsion-type pattern with rotational and flexion components that don’t specifically match the unilateral transverse deformation seen in plagiocephaly; compression involves overall inward pressure that doesn’t emphasize the lateral, side-to-side shift; superior vertical strain describes a vertical, up-and-down movement of the SBS that isn’t the hallmark of the unilateral transverse flattening characteristic of deformational plagiocephaly.