In this patient, which symptom is least likely to be present:

This patient presents with mechanical back pain. The x-ray demonstrates: A retrolisthesis of L5 on S1 A spondylolysis of L5 Correct, This patient has a spondylolysis of the pars interarticularis between L5 and S1. There is no displacement of the vertebral body and therefore there is no spondylolisthesis. ................
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