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Purpose <p>To evaluate the anatomical conformity between the radius of curvature (ROC) of the anterior iliac tubercle’s outer table and the posterior acetabular wall via CT, and to assess the clinical feasibility of this autograft for reconstruction.</p> Methods <p>Pelvic CT scans of 52 patients were analyzed to measure the bilateral ROC of the anterior iliac tubercle and the posterior acetabular wall. A clinical pilot study was also conducted to evaluate the clinical outcomes of four patients with comminuted posterior wall fractures treated with this autologous bone graft.</p> Results <p>Equivalence testing confirmed that the ROC of the anterior iliac tubercle and the posterior acetabular wall were clinically equivalent within a 3&#xa0;mm margin. All four patients achieved a tight intraoperative graft fit and successful bony union; however, satisfactory functional recovery (Excellent or Good) was observed in three cases.</p> Conclusion <p>Within a 3&#xa0;mm margin, the outer table of the anterior iliac tubercle matches the posterior acetabular wall, serving as a viable anatomical autograft for reconstructing comminuted posterior wall fractures.</p> Graphical Abstract <p></p>

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Reconstruction of comminuted posterior acetabular wall fractures using the outer table of the anterior iliac tubercle: anatomical matching and a clinical pilot study

  • 期刊论文

  • 发表日期：

    2026年6月26日

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  • Yanhong Liu,
  • Guanyang Wang,
  • Kailong Wu,
  • Rongkang Guo,
  • Haihuang Wang,
  • Xuebin Zhang,
  • Tao Zhang

摘要

Purpose

To evaluate the anatomical conformity between the radius of curvature (ROC) of the anterior iliac tubercle’s outer table and the posterior acetabular wall via CT, and to assess the clinical feasibility of this autograft for reconstruction.

Methods

Pelvic CT scans of 52 patients were analyzed to measure the bilateral ROC of the anterior iliac tubercle and the posterior acetabular wall. A clinical pilot study was also conducted to evaluate the clinical outcomes of four patients with comminuted posterior wall fractures treated with this autologous bone graft.

Results

Equivalence testing confirmed that the ROC of the anterior iliac tubercle and the posterior acetabular wall were clinically equivalent within a 3 mm margin. All four patients achieved a tight intraoperative graft fit and successful bony union; however, satisfactory functional recovery (Excellent or Good) was observed in three cases.

Conclusion

Within a 3 mm margin, the outer table of the anterior iliac tubercle matches the posterior acetabular wall, serving as a viable anatomical autograft for reconstructing comminuted posterior wall fractures.

Graphical Abstract