What is the primary aim of the lumbar spinal fusion procedure?

The primary aim of the lumbar spinal fusion procedure is to stabilize the spine. This surgical technique is primarily performed to address issues related to spinal instability, such as severe degenerative disc disease, spondylolisthesis, or spinal fractures. By fusing two or more vertebrae together, the procedure eliminates the motion between those vertebrae, which helps to alleviate pain and prevent further damage. Stability is crucial for restoring function and improving the patient's quality of life, as an unstable spine can lead to additional complications and chronic pain.

The other options pertain to conditions or outcomes that are not the focus of lumbar spinal fusion. Alleviating neck pain is associated with cervical procedures rather than lumbar. Improving joint flexibility and enhancing arm strength are not objectives of lumbar fusion, as the procedure is focused more on providing stability rather than increasing flexibility or strength in the upper extremities.