Left L4 through S1 segmental pedicle screw instrumentation

What does "Left L4 through S1 segmental pedicle screw instrumentation" 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.

Explanation

"Left L4 through S1 segmental pedicle screw instrumentation" refers to a surgical procedure performed on the lower spine. In this procedure, screws are inserted into specific parts of the spine, specifically from the fourth lumbar vertebra (L4) down to the first sacral vertebra (S1), on the left side of the body. These screws help to stabilize the spine, often after an injury or due to a degenerative condition. This procedure is typically performed by a specialist, such as a neurosurgeon or orthopedic surgeon.

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