which of the following position would best demonstrate the apophyseal articulations of the lumber vertebrae?
- a. LPO
- b. RPO
- c. left lateral
- d. PA
The best position to demonstrate the apophyseal articulations of the lumbar vertebrae is standing with the hands on the hips.
Here's why:
- Standing:
This position lengthens and straightens the spine, providing a clear view of the facet joints (apophyseal articulations) on the posterior aspect of the vertebrae.
- Hands on hips:
Placing the hands on the hips gently engages the abdominal muscles, which slightly lordoses the lumbar spine. This lordosis further opens up the facet joints, making them even more visible.
In this position, you can feel the bony prominences of the transverse processes (where the hands are placed) and the facet joints themselves, which are located just medial to the transverse processes. You can also move your torso slightly from side to side to feel the gliding motion of the facet joints.
Positions for demonstrate the apophyseal articulations:
Here are some other positions that can be used to demonstrate the apophyseal articulations, but they are not as good as standing with the hands on the hips:
- Lying on your back:
This position allows you to see the facet joints from the front, but it is not as good for feeling them move.
- Sitting:
This position is similar to standing, but it does not lordose the spine as much, so the facet joints are not as visible.
