What does "Interspace between the spinous processes of L3-L4" 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.
"Interspace between the spinous processes of L3-L4" refers to the gap or space between two specific parts of the spine. The spine is made up of a series of bones, and each of these bones has a pointed section at the back called the spinous process. L3 and L4 are labels for two of these bones in the lower back. So, the phrase is talking about the space between these two points on the back of the spine.
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