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The application of NFlex system (case No. 14). A 46-year-old female patient underwent fusion surgery at L3-4 previously 2 years prior to her visit (A), but she complained of persistent pain (B). With more progressed spinal stenosis at L4-5, she underwent dynamic stabilization surgery with the NFlex system (C). No significant radiologic findings at adjacent segments were observed (D), but she maintained medical treatment for pain reduction.
