Your patient has complaints of increasing low back pain during the day.Her job requires repetitive lifting and reaching overhead (25 lb maximum).On examination,you note that on forward bending she has difficulty moving smoothly midrange and that on side bending to the left there is an acute angle in the midlumbar region.Additional tests lead you to hypothesize that she has clinical instability in the midlumbar region.This could be caused from all of the following except:
A) Degeneration of the intervertebral disk.
B) Poor neuromuscular control of the deep segmental stabilizing musculature.
C) Ligamentous laxity.
D) Advanced spondylitis.

Question

Quizplus · Accepted Answer

Advanced spondylitis refers to inflammation and fusion of the spinal joints, which does not typically result in clinical instability. Therefore, it is unlikely to be the cause of the patient's midlumbar instability. Degeneration of the intervertebral disk, poor neuromuscular control of the deep segmental stabilizing musculature, and ligamentous laxity can all potentially contribute to clinical instability in the midlumbar region.

Your Patient Has Complaints of Increasing Low Back Pain During