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Background <p>The coincidence rate of femoroacetabular impingement (FAI) or acetabular retroversion (AR) with anterior ankle impingement (AAI) is not known. In this preliminary study, we investigated the coexistence of FAI and AR in a cohort of patients presented with AAI. </p> Methods <p>In a cross-sectional study, 56 patients who presented with AAI and underwent arthroscopic surgery for AAI treatment were included. The concurrent FAI was assessed clinically and radiographically. The concurrent acetabular retroversion was investigated by the evaluation of the crossover sign and ischial spine sign.</p> Results <p>Concurrent FAI was observed in 43% (24 of 56 patients), which was bilateral in 67% (16 of 24 patients) and unilateral in 33% (8 of 24 patients). Out of 24 patients with concurrent hip impingement, only six (25%) patients had symptomatic hips. In total, concurrent FAI was observed in 40 hips, which was cam-type in 55% (22 of 40 hips), pincer-type in 30% (12 of 40 hips), and mixed-type in 15% (6 of 40 hips). Concurrent AR was detected in 52% (29 of 56 patients), which was unilateral in 28% (8 of 29 patients) and bilateral in 72% (21 of 29 patients). In 25% of patients (14 of 56 patients), AR coexisted with FAI.</p> Conclusion <p>A considerable number of patients presenting with AAI were found to have concurrent FAI and/or AR. While the clinical significance of this association remains uncertain, these findings may warrant further investigation into whether evaluating for hip deformities in AAI patients could be of diagnostic or preventive value.</p> Level of evidence <p>IV.</p>

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Preliminary observations on the coincidence of femoroacetabular impingement and/or acetabular retroversion with anterior ankle impingement

  • 期刊论文

  • 发表日期：

    2025年6月1日

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  • Mohammad Reza Bahaeddini,
  • Hamid Mirzamohammadi,
  • Amir Aminian,
  • Pouria Tabrizian,
  • Elham Mohammadyahya,
  • Shayan Amiri,
  • Azadeh Amini Kadijani,
  • Hamed Tayyebi,
  • Kaveh Gharanizadeh

摘要

Background

The coincidence rate of femoroacetabular impingement (FAI) or acetabular retroversion (AR) with anterior ankle impingement (AAI) is not known. In this preliminary study, we investigated the coexistence of FAI and AR in a cohort of patients presented with AAI.

Methods

In a cross-sectional study, 56 patients who presented with AAI and underwent arthroscopic surgery for AAI treatment were included. The concurrent FAI was assessed clinically and radiographically. The concurrent acetabular retroversion was investigated by the evaluation of the crossover sign and ischial spine sign.

Results

Concurrent FAI was observed in 43% (24 of 56 patients), which was bilateral in 67% (16 of 24 patients) and unilateral in 33% (8 of 24 patients). Out of 24 patients with concurrent hip impingement, only six (25%) patients had symptomatic hips. In total, concurrent FAI was observed in 40 hips, which was cam-type in 55% (22 of 40 hips), pincer-type in 30% (12 of 40 hips), and mixed-type in 15% (6 of 40 hips). Concurrent AR was detected in 52% (29 of 56 patients), which was unilateral in 28% (8 of 29 patients) and bilateral in 72% (21 of 29 patients). In 25% of patients (14 of 56 patients), AR coexisted with FAI.

Conclusion

A considerable number of patients presenting with AAI were found to have concurrent FAI and/or AR. While the clinical significance of this association remains uncertain, these findings may warrant further investigation into whether evaluating for hip deformities in AAI patients could be of diagnostic or preventive value.

Level of evidence

IV.