, thoracic kyphosis, and lumbar lordosis are the major components of the physiological curvatures of the spine in the sagittal plane.
If that angle possesses lower values then it stands for limiting the cervical lordosis
, a higher angulation of the lower segments, and increasing the compressive forces of that area [18,11].
In the surgical treatment of multilevel cervical spondylotic myelopathy, PEEK cages are superior to titanium cages in maintaining cervical lordosis
and intervertebral height, resulting in good clinical results.23 In our study we tried to compare the results of ACDF procedure with titanium and PEEK cages.
Decreased Vertebral Artery Hemodynamics in Patients with Loss of Cervical Lordosis
. Medical Science Monitor.
Reliability of cervical lordosis
measurement techniques on long-cassette radiographs.
MR imaging findings reported in patients from South-East Asia and Japan include loss of attachment (LOA) of the dura to the lamina, asymmetric lower cervical spinal cord atrophy, spinal cord T2 hyperintensity, loss of cervical lordosis
in the neutral position and forward displacement of the dura with flexion MR imaging.
Festa  found the relationship between cervical lordosis
and cranial base and mandibular length.
Martensmeier (1992)11 showed that before treatment nearly half of the Class I and Class II patients had a marked cervical lordosis
, whereas Class III patients had abnormal kyphosis.
According to our results, the anterior translation of the head might accompany cranial flexion as well as a flattening of the cervical lordosis
. To balance the extensor moment produced by the flexed head, the extensor muscles need to produce additional extension torque and the fatigue of these muscles might lead to neck or upper back symptoms.
The visual analogue scale (VAS), cervical lordosis
, and clinical symptom score were assessed as the secondary outcome measures.
 found that children with skeletal class III showed a significantly lower angle of cervical lordosis
than those with class I and II.