What does "Unstable at L4-L5" mean in a report or doctor's letter? In our medical dictionary, you will find a patient-friendly explanation of the meaning of this medical term.
"Unstable at L4-L5" refers to a medical condition related to the spine. The spine is made up of small bones called vertebrae, and L4-L5 refers to the area between the fourth and fifth vertebrae in the lower back. When this area is described as "unstable," it means that these bones are moving more than they should, which can cause pain or other symptoms. This instability can be due to various reasons such as injury, degeneration, or disease.
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