Anna L. Falkowski , Christoph Germann , Céline Gfeller , Fides R. Schwartz , Thomas Marth , Sandro F. Fucentese , Stefan M. Zimmermann , Reto Sutter
{"title":"内侧单室膝关节置换术:与全膝关节置换术相关的影像学表现-一项病例对照研究","authors":"Anna L. Falkowski , Christoph Germann , Céline Gfeller , Fides R. Schwartz , Thomas Marth , Sandro F. Fucentese , Stefan M. Zimmermann , Reto Sutter","doi":"10.1016/j.ejrad.2025.112284","DOIUrl":null,"url":null,"abstract":"<div><h3>Purpose</h3><div>Identify radiographic findings after Unicompartmental Knee Arthroplasty (UKA) that might lead to conversion to Total Knee Arthroplasty (TKA) in comparison to an asymptomatic control group without the need to conversion to TKA.</div></div><div><h3>Materials and Methods</h3><div>Radiographs of patients with UKA before aseptic conversion to TKA were compared to an asymptomatic control group without conversion. Radiographic findings like osteolytic rim, osteolysis, material integrity and positioning, periprosthetic fractures, and osteoarthritis (OA) were evaluated.</div></div><div><h3>Results</h3><div>A total of 99 patients were included (male/female, 60/39; mean age, 67 ± 9.7 years), 42 in the conversion group and 57 in the control group. In the conversion group, an osteolytic rim with a sclerotic line was observed at the femoral component in 16.7 % and at the tibial component in 54.8 %, while it was observed in 10.5 % and 30.7 % in the control group (femoral, p = 0.676; tibial, p = 0.014, respectively). Osteolysis was present in the conversion group at the femoral component in 1.2 % and at the tibial component in 8.3 %, while no femoral or tibial component osteolysis was present in the control group (femoral, p = 0.32; tibial, p = 0.008, respectively). OA was more advanced in the conversion group compared to the control group in the lateral femorotibial compartment (p < 0.001) and the patellofemoral compartment (p = 0.008). The femoral material integrity was more often intact in the conversion group (p = 0.045), and the femorotibial ratio was higher in the control group (p = 0.040).</div></div><div><h3>Conclusion</h3><div>Features commonly present in patients needing a conversion from UKA to TKA were tibial osteolytic rim and osteolysis. Additionally, OA was more advanced in the conversion group at the lateral femorotibial compartment and patellofemoral compartment compared to the asymptomatic control group.</div></div>","PeriodicalId":12063,"journal":{"name":"European Journal of Radiology","volume":"191 ","pages":"Article 112284"},"PeriodicalIF":3.2000,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Medial unicompartmental knee arthroplasties: Radiographic findings associated with conversion to total knee arthroplasty – A Case control study\",\"authors\":\"Anna L. Falkowski , Christoph Germann , Céline Gfeller , Fides R. Schwartz , Thomas Marth , Sandro F. Fucentese , Stefan M. Zimmermann , Reto Sutter\",\"doi\":\"10.1016/j.ejrad.2025.112284\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><h3>Purpose</h3><div>Identify radiographic findings after Unicompartmental Knee Arthroplasty (UKA) that might lead to conversion to Total Knee Arthroplasty (TKA) in comparison to an asymptomatic control group without the need to conversion to TKA.</div></div><div><h3>Materials and Methods</h3><div>Radiographs of patients with UKA before aseptic conversion to TKA were compared to an asymptomatic control group without conversion. Radiographic findings like osteolytic rim, osteolysis, material integrity and positioning, periprosthetic fractures, and osteoarthritis (OA) were evaluated.</div></div><div><h3>Results</h3><div>A total of 99 patients were included (male/female, 60/39; mean age, 67 ± 9.7 years), 42 in the conversion group and 57 in the control group. In the conversion group, an osteolytic rim with a sclerotic line was observed at the femoral component in 16.7 % and at the tibial component in 54.8 %, while it was observed in 10.5 % and 30.7 % in the control group (femoral, p = 0.676; tibial, p = 0.014, respectively). Osteolysis was present in the conversion group at the femoral component in 1.2 % and at the tibial component in 8.3 %, while no femoral or tibial component osteolysis was present in the control group (femoral, p = 0.32; tibial, p = 0.008, respectively). OA was more advanced in the conversion group compared to the control group in the lateral femorotibial compartment (p < 0.001) and the patellofemoral compartment (p = 0.008). The femoral material integrity was more often intact in the conversion group (p = 0.045), and the femorotibial ratio was higher in the control group (p = 0.040).</div></div><div><h3>Conclusion</h3><div>Features commonly present in patients needing a conversion from UKA to TKA were tibial osteolytic rim and osteolysis. Additionally, OA was more advanced in the conversion group at the lateral femorotibial compartment and patellofemoral compartment compared to the asymptomatic control group.</div></div>\",\"PeriodicalId\":12063,\"journal\":{\"name\":\"European Journal of Radiology\",\"volume\":\"191 \",\"pages\":\"Article 112284\"},\"PeriodicalIF\":3.2000,\"publicationDate\":\"2025-07-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"European Journal of Radiology\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0720048X25003705\",\"RegionNum\":3,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"European Journal of Radiology","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0720048X25003705","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING","Score":null,"Total":0}
Medial unicompartmental knee arthroplasties: Radiographic findings associated with conversion to total knee arthroplasty – A Case control study
Purpose
Identify radiographic findings after Unicompartmental Knee Arthroplasty (UKA) that might lead to conversion to Total Knee Arthroplasty (TKA) in comparison to an asymptomatic control group without the need to conversion to TKA.
Materials and Methods
Radiographs of patients with UKA before aseptic conversion to TKA were compared to an asymptomatic control group without conversion. Radiographic findings like osteolytic rim, osteolysis, material integrity and positioning, periprosthetic fractures, and osteoarthritis (OA) were evaluated.
Results
A total of 99 patients were included (male/female, 60/39; mean age, 67 ± 9.7 years), 42 in the conversion group and 57 in the control group. In the conversion group, an osteolytic rim with a sclerotic line was observed at the femoral component in 16.7 % and at the tibial component in 54.8 %, while it was observed in 10.5 % and 30.7 % in the control group (femoral, p = 0.676; tibial, p = 0.014, respectively). Osteolysis was present in the conversion group at the femoral component in 1.2 % and at the tibial component in 8.3 %, while no femoral or tibial component osteolysis was present in the control group (femoral, p = 0.32; tibial, p = 0.008, respectively). OA was more advanced in the conversion group compared to the control group in the lateral femorotibial compartment (p < 0.001) and the patellofemoral compartment (p = 0.008). The femoral material integrity was more often intact in the conversion group (p = 0.045), and the femorotibial ratio was higher in the control group (p = 0.040).
Conclusion
Features commonly present in patients needing a conversion from UKA to TKA were tibial osteolytic rim and osteolysis. Additionally, OA was more advanced in the conversion group at the lateral femorotibial compartment and patellofemoral compartment compared to the asymptomatic control group.
期刊介绍:
European Journal of Radiology is an international journal which aims to communicate to its readers, state-of-the-art information on imaging developments in the form of high quality original research articles and timely reviews on current developments in the field.
Its audience includes clinicians at all levels of training including radiology trainees, newly qualified imaging specialists and the experienced radiologist. Its aim is to inform efficient, appropriate and evidence-based imaging practice to the benefit of patients worldwide.