Upper Cervical Therapy
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Head Rotation Measurements as accompanying Diagnostics

Minutes of angle measurement in a patient with tension-type headache: before, after, and after vibrational treatment: L / R = horizontal rotation, SL / SR = lateral bending, B = flexion / S = extension.

The head rotation measurement according to the neutral-zero-method are performed with a commercially available compass goniometer (CMS Cervical Measurement System). The person is sitting upright with contact to a towel bobbin on a chair, his or her arms lying on one's lap. By blocking the shoulders, the experimentor makes sure that the thoracic spine can not participate in the movement of the cervical spine as far as possible.

In unaffected upper cervicals, while upper cervical asymmetry still exists - that is, before upper cervical  therapy - typical values result:

  • usually a right-sided limitation of horizontal rotation,
  • usually a left-sided limitation of lateral flexion,
  • usually a limitation of extension.

Due to the digastric muscle rearrangement - that is, after upper cervical therapy - the following typical values result:

  • usually an increase and symmetrization of horizontal rotation,
  • usually an increase and symmetrization of  lateral flexion,
  • usually an increase of extension.

In the specfic case, the head rotation measurements serve as an objectification of perceived increased head mobility. The values can also easily be aggregated encompassing many cases, which results in a statistically significant evidence of upper cervical asymmetry. Possible measurement error is mitigated by considerable raw score differences. The results suggest that the digastric muscle rearrangement is a far-reaching therapeutic treatment.