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. 2020 Jul 22;12(4):1230–1237. doi: 10.1111/os.12747

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© 2020 The Authors. Orthopaedic Surgery published by Chinese Orthopaedic Association and John Wiley & Sons Australia, Ltd.

This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc-nd/4.0/ License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.

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Fig. 2 — L_4‐5 Foci of the pain recorded before the operation. (A) Foci of the pain from L_4‐5. (B) Foci of the pain from L₅S₁. For purposes of illustration only, pain is depicted as unilateral to the left. The distribution of LBP foci from L_4‐5 was in lower back and upper gluteal region under the L₄ spinous process, while L₅S₁ had pain foci in the gluteal region under the S₁ spinous process.