Abstract：
BACKGROUND: In total knee arthroplasty (TKA), choosing the correct implant size is important. There is lack of data on accuracy of templating on haemophilic knees. Our aim was to test the accuracy of 2D digital templating for TKA on haemophilic arthropathy (HA) of knee.
METHODS: TKAs performed on HA between January 2011 and January 2022 were screened. Osteoarthritis (OA) group was created as control group by a one-to-one matching regarding type of implant used. Intra- and interobserver correlations were measured in HA, then correlation between templated and implanted sizes was investigated in four assessments (femur AP, femur lateral, tibia AP, tibia lateral), then compared with OA group. Fifty-eight knees in each group included.
RESULTS: Regarding intraobserver correlation in HA, there was excellent correlation for femur AP [.93 (.73-.98)], femur lateral [.98 (.91-.99)], and tibia AP (1.0) templating. Regarding interobserver correlation in HA, excellent correlation was observed for femur lateral [.93 (.74-.98)] and tibia AP templating [.90 (.65-.97)]. Regarding correlation of templated and applied sizes in HA; tibia AP, tibia lateral and femur lateral templating showed good correlation [.81 (.70-.89), .86 (.77-.91), .79 (.67-.87) while femur AP templating showed moderate correlation [.67 (.50-.79)]. Comparing HA and OA, there was no difference in correlation levels regarding femur AP, femur lateral, tibia AP and tibia lateral templating (p = .056, p = .781, p = .761, p = .083, respectively).
CONCLUSIONS: Although 2D digital templating shows comparable correlation in HA and OA, clinical applicability of templating on HA appears to be limited in its current state.
METHODS: TKAs performed on HA between January 2011 and January 2022 were screened. Osteoarthritis (OA) group was created as control group by a one-to-one matching regarding type of implant used. Intra- and interobserver correlations were measured in HA, then correlation between templated and implanted sizes was investigated in four assessments (femur AP, femur lateral, tibia AP, tibia lateral), then compared with OA group. Fifty-eight knees in each group included.
RESULTS: Regarding intraobserver correlation in HA, there was excellent correlation for femur AP [.93 (.73-.98)], femur lateral [.98 (.91-.99)], and tibia AP (1.0) templating. Regarding interobserver correlation in HA, excellent correlation was observed for femur lateral [.93 (.74-.98)] and tibia AP templating [.90 (.65-.97)]. Regarding correlation of templated and applied sizes in HA; tibia AP, tibia lateral and femur lateral templating showed good correlation [.81 (.70-.89), .86 (.77-.91), .79 (.67-.87) while femur AP templating showed moderate correlation [.67 (.50-.79)]. Comparing HA and OA, there was no difference in correlation levels regarding femur AP, femur lateral, tibia AP and tibia lateral templating (p = .056, p = .781, p = .761, p = .083, respectively).
CONCLUSIONS: Although 2D digital templating shows comparable correlation in HA and OA, clinical applicability of templating on HA appears to be limited in its current state.
摘要：
背景：在全膝关节置换术（TKA）中，选择正确的植入物尺寸很重要。缺乏血友病膝盖模板准确性的数据。我们的目的是测试用于膝关节血友病性关节病（HA）的TKA的2D数字模板的准确性。
方法：筛选2011年1月至2022年1月对HA进行的TKAs。骨关节炎（OA）组通过使用植入物类型的一对一匹配创建为对照组。在HA中测量观察者之间和观察者之间的相关性，然后在四个评估中研究了模板和植入尺寸之间的相关性(股骨AP，股骨外侧,胫骨AP,胫骨外侧),然后与OA组比较。每组包括58个膝盖。
结果：关于HA中的观察者内相关性，股骨AP有很好的相关性[.93(.73-.98)]，股骨外侧[.98(.91-.99)]，和胫骨AP(1.0)模板。关于HA中的观察者间相关性，股骨外侧[.93（.74-.98）]和胫骨AP模板[.90（.65-.97）]观察到极好的相关性。关于HA中模板和应用尺寸的相关性；胫骨AP，胫骨外侧和股骨外侧模板显示出良好的相关性[.81(.70-.89)，.86（.77-.91），.79（.67-.87），而股骨AP模板显示中等相关性[.67（.50-.79）]。比较HA和OA，股骨AP的相关水平没有差异，股骨外侧,胫骨AP和胫骨外侧模板(分别为p=.056,p=.781,p=.761,p=.083)。
结论：尽管2D数字模板在HA和OA中显示出可比的相关性，在目前的状态下，HA模板的临床适用性似乎受到限制。
方法：筛选2011年1月至2022年1月对HA进行的TKAs。骨关节炎（OA）组通过使用植入物类型的一对一匹配创建为对照组。在HA中测量观察者之间和观察者之间的相关性，然后在四个评估中研究了模板和植入尺寸之间的相关性(股骨AP，股骨外侧,胫骨AP,胫骨外侧),然后与OA组比较。每组包括58个膝盖。
结果：关于HA中的观察者内相关性，股骨AP有很好的相关性[.93(.73-.98)]，股骨外侧[.98(.91-.99)]，和胫骨AP(1.0)模板。关于HA中的观察者间相关性，股骨外侧[.93（.74-.98）]和胫骨AP模板[.90（.65-.97）]观察到极好的相关性。关于HA中模板和应用尺寸的相关性；胫骨AP，胫骨外侧和股骨外侧模板显示出良好的相关性[.81(.70-.89)，.86（.77-.91），.79（.67-.87），而股骨AP模板显示中等相关性[.67（.50-.79）]。比较HA和OA，股骨AP的相关水平没有差异，股骨外侧,胫骨AP和胫骨外侧模板(分别为p=.056,p=.781,p=.761,p=.083)。
结论：尽管2D数字模板在HA和OA中显示出可比的相关性，在目前的状态下，HA模板的临床适用性似乎受到限制。
