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Pelvimetry is the measurement of the female pelvis. [1] It can theoretically identify cephalo-pelvic disproportion, which is when the capacity of the pelvis is inadequate to allow the fetus to negotiate the birth canal.
The atlanto-axial joint is a joint between the atlas bone and the axis bone, which are the first and second cervical vertebrae. It is a pivot joint that provides 40 to 70% of axial rotation of the head. [1]
Cephalometric analysis depends on cephalometric radiography to study relationships between bony and soft tissue landmarks and can be used to diagnose facial growth abnormalities prior to treatment, in the middle of treatment to evaluate progress, or at the conclusion of treatment to ascertain that the goals of treatment have been met. [5]
In neutral rotation the ratio is 1 but is considered to be acceptable when it is between 0.56 and 1.8. ... The range of normal values is from 90 to 135° and is ...
According to the Modified Bishop's pre-induction cervical scoring system, effacement has been replaced by cervical length in cm, with scores as follows: 0 for >3 cm, 1 for >2 cm, 2 for >1 cm, 3 for >0 cm. [6] Cervical length may be easier and more accurate to measure and have less inter-examiner variability.
[1] [2] However, the terms lordosis and lordotic are also used to refer to the normal inward curvature of the lumbar and cervical regions of the human spine. [3] [4] Similarly, kyphosis historically refers to abnormal convex curvature of the spine. The normal outward (convex) curvature in the thoracic and sacral regions is also termed kyphosis ...
There are many grading systems for degeneration of intervertebral discs and facet joints in the cervical and lumbar vertebrae, of which the following radiographic systems can be recommended in terms of interobserver reliability: [1] Kellgren grading of cervical disc degeneration; Kellgren grading of cervical facet joint degeneration
Orthospinology Procedure is a method of analyzing and correcting the chiropractic upper cervical subluxation complex based on vertebral alignment measurements on neck X-rays taken from three different directions. The adjustment can be delivered by hand, hand-held, or table-mounted instruments along a pre-calculated vector using approximately 1 ...