What does "Superior facet of S1 and 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.
The "superior facet of S1 and L5" refers to the upper part of two specific bones in the spine. The S1 bone is the first bone in the sacrum, which is the lower part of the spine, and the L5 bone is the fifth bone in the lumbar region, which is the middle part of the spine. These facets are like small flat surfaces where these bones connect with each other. This connection helps in the movement and flexibility of the spine.
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