A new factor predicting excessive femoral anteversion in patients with recurrent patellar dislocation

Abstract Purpose Determining a new imaging method on full-leg standing lower limb radiographs to predict excessive femoral anteversion in patients with patellar dislocation. Methods This study included 119 patients with patellar dislocation from January 2014 to January 2021. The femoral anteversion...

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Main Authors: Conglei Dong, Kuo Hao, Chao Zhao, Fei Wang
Format: Article
Language:English
Published: BMC 2022-07-01
Series:Journal of Orthopaedic Surgery and Research
Subjects:
Online Access:https://doi.org/10.1186/s13018-022-03259-2
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author Conglei Dong
Kuo Hao
Chao Zhao
Fei Wang
author_facet Conglei Dong
Kuo Hao
Chao Zhao
Fei Wang
author_sort Conglei Dong
collection DOAJ
description Abstract Purpose Determining a new imaging method on full-leg standing lower limb radiographs to predict excessive femoral anteversion in patients with patellar dislocation. Methods This study included 119 patients with patellar dislocation from January 2014 to January 2021. The femoral anteversion and tibial torsion were measured by CT scanning. The medial condylar angle was measured by the full-leg standing lower limb radiographs. Pearson correlation coefficient was used to evaluate the correlation between rotation parameters and medial condylar angle. Results Included patients were divided into DFO group and control group according to whether they received derotational femoral osteotomy (DFO) operation or not. DFO group had significantly higher femoral anteversion (29.8° ± 7.2° vs 23.1° ± 6.5°, P < 0.05), higher tibial torsion (28.6° ± 6.9° vs 24.7° ± 7.9°, P < 0.05), lower medial condylar angle (154.8° ± 4.7° vs 157.5° ± 6.7°, P < 0.05) than control group. Correlation analysis showed that the values of femoral anteversion were significantly correlated with medial condylar angle (r = -0.719, P < 0.001). Conclusion This study showed that medial condylar angle had a negative correlation with excessive femoral anteversion on the full-leg standing lower limb radiographs. The medial condylar angle can be a good predictor of femoral anteversion and can be used to guide the performance of DFO to treat patellar dislocation in clinical practice.
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spelling doaj.art-dc83dad2521649f4a0012e32e67a32eb2022-12-22T02:18:57ZengBMCJournal of Orthopaedic Surgery and Research1749-799X2022-07-011711610.1186/s13018-022-03259-2A new factor predicting excessive femoral anteversion in patients with recurrent patellar dislocationConglei Dong0Kuo Hao1Chao Zhao2Fei Wang3Department of Orthopaedic Surgery, Third Hospital of Hebei Medical UniversityDepartment of Orthopaedic Surgery, Third Hospital of Hebei Medical UniversityDepartment of Orthopaedic Surgery, Third Hospital of Hebei Medical UniversityDepartment of Orthopaedic Surgery, Third Hospital of Hebei Medical UniversityAbstract Purpose Determining a new imaging method on full-leg standing lower limb radiographs to predict excessive femoral anteversion in patients with patellar dislocation. Methods This study included 119 patients with patellar dislocation from January 2014 to January 2021. The femoral anteversion and tibial torsion were measured by CT scanning. The medial condylar angle was measured by the full-leg standing lower limb radiographs. Pearson correlation coefficient was used to evaluate the correlation between rotation parameters and medial condylar angle. Results Included patients were divided into DFO group and control group according to whether they received derotational femoral osteotomy (DFO) operation or not. DFO group had significantly higher femoral anteversion (29.8° ± 7.2° vs 23.1° ± 6.5°, P < 0.05), higher tibial torsion (28.6° ± 6.9° vs 24.7° ± 7.9°, P < 0.05), lower medial condylar angle (154.8° ± 4.7° vs 157.5° ± 6.7°, P < 0.05) than control group. Correlation analysis showed that the values of femoral anteversion were significantly correlated with medial condylar angle (r = -0.719, P < 0.001). Conclusion This study showed that medial condylar angle had a negative correlation with excessive femoral anteversion on the full-leg standing lower limb radiographs. The medial condylar angle can be a good predictor of femoral anteversion and can be used to guide the performance of DFO to treat patellar dislocation in clinical practice.https://doi.org/10.1186/s13018-022-03259-2Patellar dislocationPatellar instabilityFemoral anteversionDerotational femoral osteotomyMedial condylar angle
spellingShingle Conglei Dong
Kuo Hao
Chao Zhao
Fei Wang
A new factor predicting excessive femoral anteversion in patients with recurrent patellar dislocation
Journal of Orthopaedic Surgery and Research
Patellar dislocation
Patellar instability
Femoral anteversion
Derotational femoral osteotomy
Medial condylar angle
title A new factor predicting excessive femoral anteversion in patients with recurrent patellar dislocation
title_full A new factor predicting excessive femoral anteversion in patients with recurrent patellar dislocation
title_fullStr A new factor predicting excessive femoral anteversion in patients with recurrent patellar dislocation
title_full_unstemmed A new factor predicting excessive femoral anteversion in patients with recurrent patellar dislocation
title_short A new factor predicting excessive femoral anteversion in patients with recurrent patellar dislocation
title_sort new factor predicting excessive femoral anteversion in patients with recurrent patellar dislocation
topic Patellar dislocation
Patellar instability
Femoral anteversion
Derotational femoral osteotomy
Medial condylar angle
url https://doi.org/10.1186/s13018-022-03259-2
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