June 25, 2026 · The American journal of sports medicine · DOI: 10.1177/03635465261453074

Association of Central Acetabular Osteophytes With Microinstability and Increased Combined Anteversion in Borderline Dysplasia Hips

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This study investigates the relationship between central acetabular osteophytes (CAOs) and microinstability in hips with borderline developmental dysplasia (BDDH). The authors found that BDDH hips with CAOs exhibited higher rates of microinstability, ligamentum teres tears, and increased combined anteversion compared to those without CAOs, suggesting that CAOs may serve as a radiographic marker for instability and early osteoarthritis in this patient population.

Jin-Bo Zhu, Ran Ding, Ying Huang, Yu-Zhou Chen, Guo-Yan Zheng, Soshi Uchida, Chao Shen

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