Alessio Maione, Carlo Minoli, Matteo Davide Parmigiani, Martino Travi, Filippo Calanna, Daniele Marcolli, Riccardo Compagnoni, Paolo Ferrua, Massimo Berruto, Pietro Simone Randelli
{"title":"膝关节截骨术显著影响踝关节冠状位对齐:影像学分析","authors":"Alessio Maione, Carlo Minoli, Matteo Davide Parmigiani, Martino Travi, Filippo Calanna, Daniele Marcolli, Riccardo Compagnoni, Paolo Ferrua, Massimo Berruto, Pietro Simone Randelli","doi":"10.1002/jeo2.70252","DOIUrl":null,"url":null,"abstract":"<div>\n \n \n <section>\n \n <h3> Purpose</h3>\n \n <p>This study aimed to evaluate the effect of lateral closing-wedge high tibial osteotomy (LCW-HTO) and medial closing-wedge distal femoral osteotomy (MCW-DFO) on tibio-talar inclination (TTI) and Mikulicz lateral distal tibial angle (M-LDTA). We hypothesized that knee osteotomies significantly alter ankle coronal alignment by modifying TTI and distal tibial alignment in relation to the mechanical axis.</p>\n </section>\n \n <section>\n \n <h3> Methods</h3>\n \n <p>A retrospective radiographic analysis was conducted on 60 knees from 52 patients (37 LCW-HTO and 23 MCW-DFO) treated between 2006 and 2020. Inclusion criteria included full-length weight-bearing radiographs pre- and post-operatively, no prior ipsilateral lower limb surgery, absence of shaft deformities or advanced ankle osteoarthritis (Takakura grade >1), and age ≥16 years with ≥2 years of follow-up. Radiographic parameters measured included LDTA, hip-knee-ankle angle, M-LDTA and TTI, with ankle realignment quantified through differences between LDTA and M-LDTA and between pre- and post-operative TTI.</p>\n </section>\n \n <section>\n \n <h3> Results</h3>\n \n <p>In the MCW-DFO group, the difference between LDTA and M-LDTA decreased from 3.5 ± 2.3° to 1.3 ± 1.1° (<i>p</i> < 0.0001), indicating improved alignment. The LCW-HTO group showed a smaller but significant reduction from 4.5 ± 1.8° to 2.2 ± 1.7° (<i>p</i> < 0.0001). TTI improved significantly in both groups, with a greater adjustment in MCW-DFO (ΔTTI = 7.0 ± 4.3°, <i>p</i> < 0.01) compared to LCW-HTO (ΔTTI = 4.2 ± 2.7°, <i>p</i> < 0.01). The difference between LDTA and TTI decreased in both groups, reflecting post-operative convergence of the mechanical and anatomical axes.</p>\n </section>\n \n <section>\n \n <h3> Conclusion</h3>\n \n <p>Knee osteotomies significantly influence ankle coronal alignment, particularly modifying TTI and M-LDTA. Higher-level osteotomies (MCW-DFO) exert a greater effect on ankle alignment than LCW-HTO. Preoperative valgus or varus knee deformities must be carefully evaluated to anticipate post-operative ankle imbalance. Surgeons should assess full-length radiographs to prevent unintended malalignment.</p>\n </section>\n \n <section>\n \n <h3> Level of Evidence</h3>\n \n <p>Level III.</p>\n </section>\n </div>","PeriodicalId":36909,"journal":{"name":"Journal of Experimental Orthopaedics","volume":"12 2","pages":""},"PeriodicalIF":2.0000,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jeo2.70252","citationCount":"0","resultStr":"{\"title\":\"Knee osteotomies significantly influence coronal ankle alignment: A radiographic analysis\",\"authors\":\"Alessio Maione, Carlo Minoli, Matteo Davide Parmigiani, Martino Travi, Filippo Calanna, Daniele Marcolli, Riccardo Compagnoni, Paolo Ferrua, Massimo Berruto, Pietro Simone Randelli\",\"doi\":\"10.1002/jeo2.70252\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div>\\n \\n \\n <section>\\n \\n <h3> Purpose</h3>\\n \\n <p>This study aimed to evaluate the effect of lateral closing-wedge high tibial osteotomy (LCW-HTO) and medial closing-wedge distal femoral osteotomy (MCW-DFO) on tibio-talar inclination (TTI) and Mikulicz lateral distal tibial angle (M-LDTA). We hypothesized that knee osteotomies significantly alter ankle coronal alignment by modifying TTI and distal tibial alignment in relation to the mechanical axis.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Methods</h3>\\n \\n <p>A retrospective radiographic analysis was conducted on 60 knees from 52 patients (37 LCW-HTO and 23 MCW-DFO) treated between 2006 and 2020. Inclusion criteria included full-length weight-bearing radiographs pre- and post-operatively, no prior ipsilateral lower limb surgery, absence of shaft deformities or advanced ankle osteoarthritis (Takakura grade >1), and age ≥16 years with ≥2 years of follow-up. Radiographic parameters measured included LDTA, hip-knee-ankle angle, M-LDTA and TTI, with ankle realignment quantified through differences between LDTA and M-LDTA and between pre- and post-operative TTI.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Results</h3>\\n \\n <p>In the MCW-DFO group, the difference between LDTA and M-LDTA decreased from 3.5 ± 2.3° to 1.3 ± 1.1° (<i>p</i> < 0.0001), indicating improved alignment. The LCW-HTO group showed a smaller but significant reduction from 4.5 ± 1.8° to 2.2 ± 1.7° (<i>p</i> < 0.0001). TTI improved significantly in both groups, with a greater adjustment in MCW-DFO (ΔTTI = 7.0 ± 4.3°, <i>p</i> < 0.01) compared to LCW-HTO (ΔTTI = 4.2 ± 2.7°, <i>p</i> < 0.01). The difference between LDTA and TTI decreased in both groups, reflecting post-operative convergence of the mechanical and anatomical axes.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Conclusion</h3>\\n \\n <p>Knee osteotomies significantly influence ankle coronal alignment, particularly modifying TTI and M-LDTA. Higher-level osteotomies (MCW-DFO) exert a greater effect on ankle alignment than LCW-HTO. Preoperative valgus or varus knee deformities must be carefully evaluated to anticipate post-operative ankle imbalance. Surgeons should assess full-length radiographs to prevent unintended malalignment.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Level of Evidence</h3>\\n \\n <p>Level III.</p>\\n </section>\\n </div>\",\"PeriodicalId\":36909,\"journal\":{\"name\":\"Journal of Experimental Orthopaedics\",\"volume\":\"12 2\",\"pages\":\"\"},\"PeriodicalIF\":2.0000,\"publicationDate\":\"2025-05-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jeo2.70252\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Experimental Orthopaedics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/jeo2.70252\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ORTHOPEDICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Experimental Orthopaedics","FirstCategoryId":"1085","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/jeo2.70252","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ORTHOPEDICS","Score":null,"Total":0}
Knee osteotomies significantly influence coronal ankle alignment: A radiographic analysis
Purpose
This study aimed to evaluate the effect of lateral closing-wedge high tibial osteotomy (LCW-HTO) and medial closing-wedge distal femoral osteotomy (MCW-DFO) on tibio-talar inclination (TTI) and Mikulicz lateral distal tibial angle (M-LDTA). We hypothesized that knee osteotomies significantly alter ankle coronal alignment by modifying TTI and distal tibial alignment in relation to the mechanical axis.
Methods
A retrospective radiographic analysis was conducted on 60 knees from 52 patients (37 LCW-HTO and 23 MCW-DFO) treated between 2006 and 2020. Inclusion criteria included full-length weight-bearing radiographs pre- and post-operatively, no prior ipsilateral lower limb surgery, absence of shaft deformities or advanced ankle osteoarthritis (Takakura grade >1), and age ≥16 years with ≥2 years of follow-up. Radiographic parameters measured included LDTA, hip-knee-ankle angle, M-LDTA and TTI, with ankle realignment quantified through differences between LDTA and M-LDTA and between pre- and post-operative TTI.
Results
In the MCW-DFO group, the difference between LDTA and M-LDTA decreased from 3.5 ± 2.3° to 1.3 ± 1.1° (p < 0.0001), indicating improved alignment. The LCW-HTO group showed a smaller but significant reduction from 4.5 ± 1.8° to 2.2 ± 1.7° (p < 0.0001). TTI improved significantly in both groups, with a greater adjustment in MCW-DFO (ΔTTI = 7.0 ± 4.3°, p < 0.01) compared to LCW-HTO (ΔTTI = 4.2 ± 2.7°, p < 0.01). The difference between LDTA and TTI decreased in both groups, reflecting post-operative convergence of the mechanical and anatomical axes.
Conclusion
Knee osteotomies significantly influence ankle coronal alignment, particularly modifying TTI and M-LDTA. Higher-level osteotomies (MCW-DFO) exert a greater effect on ankle alignment than LCW-HTO. Preoperative valgus or varus knee deformities must be carefully evaluated to anticipate post-operative ankle imbalance. Surgeons should assess full-length radiographs to prevent unintended malalignment.