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. 2024 May 10;14(4 Suppl):208S–362S. doi: 10.1177/21925682241239518

Figure 1.

Figure 1.

Case presentation. a, b, c: preoperative neutral, extension and flexion X-rays; d, e, f: neutral, extension and flexion X-rays at 5-year follow-up; red circle indicated the grade III HO foramtion.