Task: Answer Verification
Input (English): Question: Does anterior lumbar fusion improve discogenic pain at levels of prior posterolateral fusion?
Answer: Low back pain that continues or recurs after apparently solid posterolateral spinal fusion may be caused by painful disc(s) at motion segment(s) within the fusion. A solid posterolateral spinal fusion may not protect the residual disc(s) from injury. Anterior interbody fusion can provide significant improvements in pain and function and a high degree of patient satisfaction in this clinical setting.
Output (English): yes