Good Validity and High Internal Consistency of the Forgotten Joint Score-12 in Patients After Medial Opening Wedge High Tibial Osteotomy
Good Validity and High Internal Consistency of the Forgotten Joint Score-12 in Patients After Medial Opening Wedge High Tibial Osteotomy
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DOI：
10.1016/j.arth.2021.03.028
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发表时间：
2021-07-16
影响因子：
3.5
通讯作者：
Okazaki, Ken
中科院分区：
文献类型：
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作者：
Itoh, Masafumi;Itou, Junya;Okazaki, Ken
背景：遗忘关节评分-12 （FJS-12）最初是为了评估人工关节的意识而开发的。内侧开口楔形胫骨高位截骨术（MOWHTO）是膝关节置换术的一种替代手术方法，是一种关节保护手术；因此，应以关节意识评价其临床效果。然而，FJS-12尚未被验证为评估MOWHTO术后结果的工具。本研究旨在验证FJS-12在MOWHTO中的作用。方法：排除双侧膝关节手术、既往膝关节手术、屈曲挛缩>15度、内翻对齐>20度、未行取板手术的患者。最后，对71例患者的71个膝关节进行分析，平均随访34.5个月。获得FJS-12评分和膝关节损伤及骨关节炎结局评分（kos），并观察各评分的下限和上限效应。计算Cronbach’s alpha以确定FJS-12的内部一致性。计算FJS-12与oos之间的Spearman相关系数以评估收敛效度。结果：3个KOOS亚量表（症状[25.4%]、疼痛[15.5%]和日常生活活动[25.4%]）均存在天花板效应，而FJS-12量表无天花板效应（8.5%）。在任何患者报告的结果测量中均未发现底效应。FJS-12的总Cronbach's alpha为0.9457。FJS-12与kos各分量表呈中至强正相关（r = 0.64-0.72）。结论：FJS-12在MOWHTO患者中具有较低的天花板效应，具有较高的内部一致性和收敛效度。FJS-12具有低上限效应，可用于评价MOWHTO患者。(C) 2021爱思唯尔公司版权所有。
Background: The Forgotten Joint Score-12 (FJS-12) was originally developed to assess awareness of an artificial joint. Medial opening wedge high tibial osteotomy (MOWHTO), an alternative surgical method of knee replacement, is a joint-preservation surgery; therefore, joint awareness should be used to evaluate its clinical results. However, FJS-12 has not been validated as a tool to evaluate the postoperative results of MOWHTO. This study aimed to validate FJS-12 in MOWHTO.Methods: Patients with bilateral knee surgery, previous knee surgery, flexion contracture >15 degrees, varus alignment >20 degrees, and patients without plate removal surgery were excluded. Finally, 71 knees of 71 patients were analyzed, with a mean follow-up of 34.5 months. The FJS-12 score and Knee Injury and Osteoarthritis Outcome Score (KOOS) were obtained, and the floor and ceiling effect of each score was investigated. Cronbach's alpha was calculated to determine the internal consistency of FJS-12. Spearman's correlation coefficients between FJS-12 and KOOS were calculated to assess convergent validity.Results: There were ceiling effects in 3 KOOS subscales (symptoms [25.4%], pain [15.5%], and activities of daily living [25.4%]) but not in FJS-12 (8.5%). No floor effect was noted in any patient-reported outcome measures. The total Cronbach's alpha was 0.9457 in FJS-12. FJS-12 showed moderate-to-strong positive correlations with all KOOS subscales (r = 0.64-0.72).Conclusion: FJS-12 showed a lower ceiling effect than KOOS and high internal consistency and convergent validity in patients following MOWHTO. With its low ceiling effect, FJS-12 was found to be useful for evaluating patients following MOWHTO. (C) 2021 Elsevier Inc. All rights reserved.