The Impact of Hip Dysplasia on CAM Impingement
Predisposing factors for CAM-type femoroacetabular impingement (FAI) include acetabular protrusion and retroversion; however, nothing is known regarding development in dysplastic hips. The purpose of this study was to determine the correlation between CAM-type FAI and developmental dysplastic hips d...
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MDPI AG
2022-07-01
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| Series: | Journal of Personalized Medicine |
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| Online Access: | https://www.mdpi.com/2075-4426/12/7/1129 |
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| author | Carsten Y. W. Heimer Chia H. Wu Carsten Perka Sebastian Hardt Friedemann Göhler Tobias Winkler Henrik C. Bäcker |
| author_facet | Carsten Y. W. Heimer Chia H. Wu Carsten Perka Sebastian Hardt Friedemann Göhler Tobias Winkler Henrik C. Bäcker |
| author_sort | Carsten Y. W. Heimer |
| collection | DOAJ |
| description | Predisposing factors for CAM-type femoroacetabular impingement (FAI) include acetabular protrusion and retroversion; however, nothing is known regarding development in dysplastic hips. The purpose of this study was to determine the correlation between CAM-type FAI and developmental dysplastic hips diagnosed using X-ray and rotational computed tomography. In this retrospective study, 52 symptomatic hips were included, with a mean age of 28.8 ± 7.6 years. The inclusion criteria consisted of consecutive patients who suffered from symptomatic dysplastic or borderline dysplastic hips and underwent a clinical examination, conventional radiographs and rotational computed tomography. Demographics, standard measurements and the rotational alignments were recorded and analyzed between the CAM and nonCAM groups. Among the 52 patients, 19 presented with CAM impingement, whereas, in 33 patients, no signs of CAM impingement were noticed. For demographics, no significant differences between the two groups were identified. On conventional radiography, the acetabular hip index as well as the CE angle for the development of CAM impingement were significantly different compared to the nonCAM group with a CE angle of 21.0° ± 5.4° vs. 23.7° ± 5.8° (<i>p</i> = 0.050) and an acetabular hip index of 25.6 ± 5.7 vs. 21.9 ± 7.3 (<i>p</i> = 0.031), respectively. Furthermore, a crossing over sign was observed to be more common in the nonCAM group, which is contradictory to the current literature. For rotational alignment, no significant differences were observed. In dysplastic hips, the CAM-type FAI correlated to a lower CE angle and a higher acetabular hip index. In contrast to the current literature, no significant correlations to the torsional alignment or to crossing over signs were observed. |
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| language | English |
| last_indexed | 2024-03-09T13:32:53Z |
| publishDate | 2022-07-01 |
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| series | Journal of Personalized Medicine |
| spelling | doaj.art-26edf1b0ccc0424fb7da1eaa8f6a91232023-11-30T21:15:24ZengMDPI AGJournal of Personalized Medicine2075-44262022-07-01127112910.3390/jpm12071129The Impact of Hip Dysplasia on CAM ImpingementCarsten Y. W. Heimer0Chia H. Wu1Carsten Perka2Sebastian Hardt3Friedemann Göhler4Tobias Winkler5Henrik C. Bäcker6Centrum für Muskuloskeletale Chirurgie, Charité—Universitätsmedizin Berlin, Augustenburger Platz 1, 13353 Berlin, GermanyDepartment of Orthopaedics & Sports Medicine, Baylor College of Medicine Medical Centre, Houston, TX 77030, USACentrum für Muskuloskeletale Chirurgie, Charité—Universitätsmedizin Berlin, Augustenburger Platz 1, 13353 Berlin, GermanyCentrum für Muskuloskeletale Chirurgie, Charité—Universitätsmedizin Berlin, Augustenburger Platz 1, 13353 Berlin, GermanyDepartment of Radiology, Charité Berlin, University Hospital, Chariteplatz 1, 10117 Berlin, GermanyCentrum für Muskuloskeletale Chirurgie, Charité—Universitätsmedizin Berlin, Augustenburger Platz 1, 13353 Berlin, GermanyCentrum für Muskuloskeletale Chirurgie, Charité—Universitätsmedizin Berlin, Augustenburger Platz 1, 13353 Berlin, GermanyPredisposing factors for CAM-type femoroacetabular impingement (FAI) include acetabular protrusion and retroversion; however, nothing is known regarding development in dysplastic hips. The purpose of this study was to determine the correlation between CAM-type FAI and developmental dysplastic hips diagnosed using X-ray and rotational computed tomography. In this retrospective study, 52 symptomatic hips were included, with a mean age of 28.8 ± 7.6 years. The inclusion criteria consisted of consecutive patients who suffered from symptomatic dysplastic or borderline dysplastic hips and underwent a clinical examination, conventional radiographs and rotational computed tomography. Demographics, standard measurements and the rotational alignments were recorded and analyzed between the CAM and nonCAM groups. Among the 52 patients, 19 presented with CAM impingement, whereas, in 33 patients, no signs of CAM impingement were noticed. For demographics, no significant differences between the two groups were identified. On conventional radiography, the acetabular hip index as well as the CE angle for the development of CAM impingement were significantly different compared to the nonCAM group with a CE angle of 21.0° ± 5.4° vs. 23.7° ± 5.8° (<i>p</i> = 0.050) and an acetabular hip index of 25.6 ± 5.7 vs. 21.9 ± 7.3 (<i>p</i> = 0.031), respectively. Furthermore, a crossing over sign was observed to be more common in the nonCAM group, which is contradictory to the current literature. For rotational alignment, no significant differences were observed. In dysplastic hips, the CAM-type FAI correlated to a lower CE angle and a higher acetabular hip index. In contrast to the current literature, no significant correlations to the torsional alignment or to crossing over signs were observed.https://www.mdpi.com/2075-4426/12/7/1129radiographyCAMfemoroacetabularimpingementFAIPAO |
| spellingShingle | Carsten Y. W. Heimer Chia H. Wu Carsten Perka Sebastian Hardt Friedemann Göhler Tobias Winkler Henrik C. Bäcker The Impact of Hip Dysplasia on CAM Impingement Journal of Personalized Medicine radiography CAM femoroacetabular impingement FAI PAO |
| title | The Impact of Hip Dysplasia on CAM Impingement |
| title_full | The Impact of Hip Dysplasia on CAM Impingement |
| title_fullStr | The Impact of Hip Dysplasia on CAM Impingement |
| title_full_unstemmed | The Impact of Hip Dysplasia on CAM Impingement |
| title_short | The Impact of Hip Dysplasia on CAM Impingement |
| title_sort | impact of hip dysplasia on cam impingement |
| topic | radiography CAM femoroacetabular impingement FAI PAO |
| url | https://www.mdpi.com/2075-4426/12/7/1129 |
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