Stephen M. Howell, Ahmed Zabiba, Alexander J. Nedopil, Maury L. Hull
{"title":"全膝关节置换术后遗忘关节评分与全髋关节置换术匹配。","authors":"Stephen M. Howell, Ahmed Zabiba, Alexander J. Nedopil, Maury L. Hull","doi":"10.1002/ksa.12712","DOIUrl":null,"url":null,"abstract":"<div>\n \n \n <section>\n \n <h3> Purpose</h3>\n \n <p>In kinematic alignment (KA) total knee arthroplasty (TKA), 50% of patients treated with a femoral component that has a 6° valgus prosthetic trochlear groove (PTG) show an abnormal quadriceps line of pull directed laterally to the groove. Lateral misalignment is reported to decrease the Forgotten Joint Score (FJS) by 17–24 points. Therefore, this study aimed to determine whether using a femoral component with a 20° valgus PTG, which minimizes the risk of lateral misalignment, can achieve a mean FJS that meets the 70-point threshold for a successful outcome in total hip arthroplasty (THA) and the mean value of 67 points for knees in the U.S. population.</p>\n </section>\n \n <section>\n \n <h3> Methods</h3>\n \n <p>The study analyzed the first 127 patients who underwent KA TKA with the 20° valgus KA-optimized femoral component. At a minimum 2-year follow-up, patients were sent an online survey to complete the FJS and Oxford Knee Score (OKS) to assess function and report instances of revision knee surgery. Ten of the 127 cases were excluded: two required revision surgery. Four patients did not complete the questionnaire but reported no reoperations. The families of two individuals who passed away provided the same response. Two patients could not be contacted.</p>\n </section>\n \n <section>\n \n <h3> Results</h3>\n \n <p>The analysis focused on 117 KA TKAs, with a mean FJS of 75 points, 5 points higher than the 70-point threshold considered successful for THA and exceeding the normative value of 67 points for knees. The mean OKS was 43 points.</p>\n </section>\n \n <section>\n \n <h3> Conclusion</h3>\n \n <p>Primary KA TKA with a 20° valgus PTG can achieve an FJS comparable to THA with high functionality, as shown by 70% and 25% of subjects receiving an excellent (48–42) or good (41–34) OKS.</p>\n </section>\n \n <section>\n \n <h3> Level of Evidence</h3>\n \n <p>Level III.</p>\n </section>\n </div>","PeriodicalId":17880,"journal":{"name":"Knee Surgery, Sports Traumatology, Arthroscopy","volume":"33 10","pages":"3646-3653"},"PeriodicalIF":5.0000,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://esskajournals.onlinelibrary.wiley.com/doi/epdf/10.1002/ksa.12712","citationCount":"0","resultStr":"{\"title\":\"The Forgotten Joint Score after total knee arthroplasty with a kinematic alignment-optimized femoral component matches total hip arthroplasty\",\"authors\":\"Stephen M. Howell, Ahmed Zabiba, Alexander J. Nedopil, Maury L. Hull\",\"doi\":\"10.1002/ksa.12712\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div>\\n \\n \\n <section>\\n \\n <h3> Purpose</h3>\\n \\n <p>In kinematic alignment (KA) total knee arthroplasty (TKA), 50% of patients treated with a femoral component that has a 6° valgus prosthetic trochlear groove (PTG) show an abnormal quadriceps line of pull directed laterally to the groove. Lateral misalignment is reported to decrease the Forgotten Joint Score (FJS) by 17–24 points. Therefore, this study aimed to determine whether using a femoral component with a 20° valgus PTG, which minimizes the risk of lateral misalignment, can achieve a mean FJS that meets the 70-point threshold for a successful outcome in total hip arthroplasty (THA) and the mean value of 67 points for knees in the U.S. population.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Methods</h3>\\n \\n <p>The study analyzed the first 127 patients who underwent KA TKA with the 20° valgus KA-optimized femoral component. At a minimum 2-year follow-up, patients were sent an online survey to complete the FJS and Oxford Knee Score (OKS) to assess function and report instances of revision knee surgery. Ten of the 127 cases were excluded: two required revision surgery. Four patients did not complete the questionnaire but reported no reoperations. The families of two individuals who passed away provided the same response. Two patients could not be contacted.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Results</h3>\\n \\n <p>The analysis focused on 117 KA TKAs, with a mean FJS of 75 points, 5 points higher than the 70-point threshold considered successful for THA and exceeding the normative value of 67 points for knees. The mean OKS was 43 points.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Conclusion</h3>\\n \\n <p>Primary KA TKA with a 20° valgus PTG can achieve an FJS comparable to THA with high functionality, as shown by 70% and 25% of subjects receiving an excellent (48–42) or good (41–34) OKS.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Level of Evidence</h3>\\n \\n <p>Level III.</p>\\n </section>\\n </div>\",\"PeriodicalId\":17880,\"journal\":{\"name\":\"Knee Surgery, Sports Traumatology, Arthroscopy\",\"volume\":\"33 10\",\"pages\":\"3646-3653\"},\"PeriodicalIF\":5.0000,\"publicationDate\":\"2025-06-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://esskajournals.onlinelibrary.wiley.com/doi/epdf/10.1002/ksa.12712\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Knee Surgery, Sports Traumatology, Arthroscopy\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://esskajournals.onlinelibrary.wiley.com/doi/10.1002/ksa.12712\",\"RegionNum\":2,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ORTHOPEDICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Knee Surgery, Sports Traumatology, Arthroscopy","FirstCategoryId":"3","ListUrlMain":"https://esskajournals.onlinelibrary.wiley.com/doi/10.1002/ksa.12712","RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ORTHOPEDICS","Score":null,"Total":0}
The Forgotten Joint Score after total knee arthroplasty with a kinematic alignment-optimized femoral component matches total hip arthroplasty
Purpose
In kinematic alignment (KA) total knee arthroplasty (TKA), 50% of patients treated with a femoral component that has a 6° valgus prosthetic trochlear groove (PTG) show an abnormal quadriceps line of pull directed laterally to the groove. Lateral misalignment is reported to decrease the Forgotten Joint Score (FJS) by 17–24 points. Therefore, this study aimed to determine whether using a femoral component with a 20° valgus PTG, which minimizes the risk of lateral misalignment, can achieve a mean FJS that meets the 70-point threshold for a successful outcome in total hip arthroplasty (THA) and the mean value of 67 points for knees in the U.S. population.
Methods
The study analyzed the first 127 patients who underwent KA TKA with the 20° valgus KA-optimized femoral component. At a minimum 2-year follow-up, patients were sent an online survey to complete the FJS and Oxford Knee Score (OKS) to assess function and report instances of revision knee surgery. Ten of the 127 cases were excluded: two required revision surgery. Four patients did not complete the questionnaire but reported no reoperations. The families of two individuals who passed away provided the same response. Two patients could not be contacted.
Results
The analysis focused on 117 KA TKAs, with a mean FJS of 75 points, 5 points higher than the 70-point threshold considered successful for THA and exceeding the normative value of 67 points for knees. The mean OKS was 43 points.
Conclusion
Primary KA TKA with a 20° valgus PTG can achieve an FJS comparable to THA with high functionality, as shown by 70% and 25% of subjects receiving an excellent (48–42) or good (41–34) OKS.
期刊介绍：
Few other areas of orthopedic surgery and traumatology have undergone such a dramatic evolution in the last 10 years as knee surgery, arthroscopy and sports traumatology. Ranked among the top 33% of journals in both Orthopedics and Sports Sciences, the goal of this European journal is to publish papers about innovative knee surgery, sports trauma surgery and arthroscopy. Each issue features a series of peer-reviewed articles that deal with diagnosis and management and with basic research. Each issue also contains at least one review article about an important clinical problem. Case presentations or short notes about technical innovations are also accepted for publication.
The articles cover all aspects of knee surgery and all types of sports trauma; in addition, epidemiology, diagnosis, treatment and prevention, and all types of arthroscopy (not only the knee but also the shoulder, elbow, wrist, hip, ankle, etc.) are addressed. Articles on new diagnostic techniques such as MRI and ultrasound and high-quality articles about the biomechanics of joints, muscles and tendons are included. Although this is largely a clinical journal, it is also open to basic research with clinical relevance.
Because the journal is supported by a distinguished European Editorial Board, assisted by an international Advisory Board, you can be assured that the journal maintains the highest standards.
Official Clinical Journal of the European Society of Sports Traumatology, Knee Surgery and Arthroscopy (ESSKA).
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