Tobias Roberts, Laura Casey, Diego Agustín Abelleyra Lastoria, Samuel Walters, Toby Smith, Caroline Hing
{"title":"髌股内侧韧带重建后股骨隧道扩大是常见的，可以通过x线平片监测。","authors":"Tobias Roberts, Laura Casey, Diego Agustín Abelleyra Lastoria, Samuel Walters, Toby Smith, Caroline Hing","doi":"10.1016/j.jcot.2024.102835","DOIUrl":null,"url":null,"abstract":"<p><strong>Introduction: </strong>medial patellofemoral ligament reconstruction (MPFLr) is a common surgical procedure for treating patellar instability. Grafts can be fixed to the femur using a bone-tunnel technique with an interference screw. However, this may lead to femoral tunnel enlargement (FTE) post-operatively. The aim of this study was to assess the correlation between time after MPFLr and FTE, to evaluate factors that might influence FTE and to determine if FTE can be reliably evaluated with plain radiographs.</p><p><strong>Methods: </strong>we conducted a single-surgeon series, retrospective review of 70 MPFLr (52 female; 18 male) between 2014 and 2022. We assessed change in femoral tunnel area compared with original tunnel area (TP0), on lateral radiographs at two time points. Time point one (TP1): mean 34 days (standard deviation (SD): 25); and Time Point 2 (TP2): mean 490 days (SD: 333). We analysed the relationship between surgical characteristics to FTE, and assessed inter- and intra-rater reliability of FTE.</p><p><strong>Results: </strong>tunnel area significantly increased from TP0 to TP1 and TP2 (p < 0.001). Mean percentage increase in cross-sectional tunnel area (CTA) between TP0 and TP1 was 113 % (SD: 49 %). Mean percentage increase in CTA between TP0 and TP2 was 139 % (SD: 64 %). There were 25 cases (36 %) of tunnel malposition. There was no significant correlation between distance from the isometric point and FTE at TP1 (r = 0.05; 95 % confidence intervals (CI): -0.19 to 0.29) or TP2 (r = 0.17: 95 % CI: -0.068 to 0.39). There were no other significant correlations with FTE. Inter-rater reliability for FTE at TP1 was moderate (Inter-Class Coefficient (ICC): 0.67; 95 % CI: 0.47 to 0.80; p < 0.001), with intra-rater reliability being excellent (ICC: 0.94; 95 % CI: 0.90 to 0.96; p < 0.001).</p><p><strong>Conclusion: </strong>FTE after MPFLr is common. Plain radiographs can be used reliably to monitor tunnel enlargement in clinical practice.</p>","PeriodicalId":53594,"journal":{"name":"Journal of Clinical Orthopaedics and Trauma","volume":"60 ","pages":"102835"},"PeriodicalIF":0.0000,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11665615/pdf/","citationCount":"0","resultStr":"{\"title\":\"Femoral tunnel enlargement after medial patellofemoral ligament reconstruction is common and can be monitored using plain radiographs.\",\"authors\":\"Tobias Roberts, Laura Casey, Diego Agustín Abelleyra Lastoria, Samuel Walters, Toby Smith, Caroline Hing\",\"doi\":\"10.1016/j.jcot.2024.102835\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Introduction: </strong>medial patellofemoral ligament reconstruction (MPFLr) is a common surgical procedure for treating patellar instability. Grafts can be fixed to the femur using a bone-tunnel technique with an interference screw. However, this may lead to femoral tunnel enlargement (FTE) post-operatively. The aim of this study was to assess the correlation between time after MPFLr and FTE, to evaluate factors that might influence FTE and to determine if FTE can be reliably evaluated with plain radiographs.</p><p><strong>Methods: </strong>we conducted a single-surgeon series, retrospective review of 70 MPFLr (52 female; 18 male) between 2014 and 2022. We assessed change in femoral tunnel area compared with original tunnel area (TP0), on lateral radiographs at two time points. Time point one (TP1): mean 34 days (standard deviation (SD): 25); and Time Point 2 (TP2): mean 490 days (SD: 333). We analysed the relationship between surgical characteristics to FTE, and assessed inter- and intra-rater reliability of FTE.</p><p><strong>Results: </strong>tunnel area significantly increased from TP0 to TP1 and TP2 (p < 0.001). Mean percentage increase in cross-sectional tunnel area (CTA) between TP0 and TP1 was 113 % (SD: 49 %). Mean percentage increase in CTA between TP0 and TP2 was 139 % (SD: 64 %). There were 25 cases (36 %) of tunnel malposition. There was no significant correlation between distance from the isometric point and FTE at TP1 (r = 0.05; 95 % confidence intervals (CI): -0.19 to 0.29) or TP2 (r = 0.17: 95 % CI: -0.068 to 0.39). There were no other significant correlations with FTE. Inter-rater reliability for FTE at TP1 was moderate (Inter-Class Coefficient (ICC): 0.67; 95 % CI: 0.47 to 0.80; p < 0.001), with intra-rater reliability being excellent (ICC: 0.94; 95 % CI: 0.90 to 0.96; p < 0.001).</p><p><strong>Conclusion: </strong>FTE after MPFLr is common. Plain radiographs can be used reliably to monitor tunnel enlargement in clinical practice.</p>\",\"PeriodicalId\":53594,\"journal\":{\"name\":\"Journal of Clinical Orthopaedics and Trauma\",\"volume\":\"60 \",\"pages\":\"102835\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-11-27\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11665615/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Clinical Orthopaedics and Trauma\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1016/j.jcot.2024.102835\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2025/1/1 0:00:00\",\"PubModel\":\"eCollection\",\"JCR\":\"Q2\",\"JCRName\":\"Medicine\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Clinical Orthopaedics and Trauma","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1016/j.jcot.2024.102835","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/1/1 0:00:00","PubModel":"eCollection","JCR":"Q2","JCRName":"Medicine","Score":null,"Total":0}
Femoral tunnel enlargement after medial patellofemoral ligament reconstruction is common and can be monitored using plain radiographs.
Introduction: medial patellofemoral ligament reconstruction (MPFLr) is a common surgical procedure for treating patellar instability. Grafts can be fixed to the femur using a bone-tunnel technique with an interference screw. However, this may lead to femoral tunnel enlargement (FTE) post-operatively. The aim of this study was to assess the correlation between time after MPFLr and FTE, to evaluate factors that might influence FTE and to determine if FTE can be reliably evaluated with plain radiographs.
Methods: we conducted a single-surgeon series, retrospective review of 70 MPFLr (52 female; 18 male) between 2014 and 2022. We assessed change in femoral tunnel area compared with original tunnel area (TP0), on lateral radiographs at two time points. Time point one (TP1): mean 34 days (standard deviation (SD): 25); and Time Point 2 (TP2): mean 490 days (SD: 333). We analysed the relationship between surgical characteristics to FTE, and assessed inter- and intra-rater reliability of FTE.
Results: tunnel area significantly increased from TP0 to TP1 and TP2 (p < 0.001). Mean percentage increase in cross-sectional tunnel area (CTA) between TP0 and TP1 was 113 % (SD: 49 %). Mean percentage increase in CTA between TP0 and TP2 was 139 % (SD: 64 %). There were 25 cases (36 %) of tunnel malposition. There was no significant correlation between distance from the isometric point and FTE at TP1 (r = 0.05; 95 % confidence intervals (CI): -0.19 to 0.29) or TP2 (r = 0.17: 95 % CI: -0.068 to 0.39). There were no other significant correlations with FTE. Inter-rater reliability for FTE at TP1 was moderate (Inter-Class Coefficient (ICC): 0.67; 95 % CI: 0.47 to 0.80; p < 0.001), with intra-rater reliability being excellent (ICC: 0.94; 95 % CI: 0.90 to 0.96; p < 0.001).
Conclusion: FTE after MPFLr is common. Plain radiographs can be used reliably to monitor tunnel enlargement in clinical practice.
期刊介绍：
Journal of Clinical Orthopaedics and Trauma (JCOT) aims to provide its readers with the latest clinical and basic research, and informed opinions that shape today''s orthopedic practice, thereby providing an opportunity to practice evidence-based medicine. With contributions from leading clinicians and researchers around the world, we aim to be the premier journal providing an international perspective advancing knowledge of the musculoskeletal system. JCOT publishes content of value to both general orthopedic practitioners and specialists on all aspects of musculoskeletal research, diagnoses, and treatment. We accept following types of articles: • Original articles focusing on current clinical issues. • Review articles with learning value for professionals as well as students. • Research articles providing the latest in basic biological or engineering research on musculoskeletal diseases. • Regular columns by experts discussing issues affecting the field of orthopedics. • "Symposia" devoted to a single topic offering the general reader an overview of a field, but providing the specialist current in-depth information. • Video of any orthopedic surgery which is innovative and adds to present concepts. • Articles emphasizing or demonstrating a new clinical sign in the art of patient examination is also considered for publication. Contributions from anywhere in the world are welcome and considered on their merits.
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