Klasan Antonio, Donati Cedric, Compagnoni Riccardo, Grassi Alberto, Musahl Volker, Menetrey Jacques
AUVA UKH Steiermark, Graz, Austria.
Johannes Kepler University of Linz, Linz, Austria.
Arch Orthop Trauma Surg. 2024 Dec 24;145(1):93. doi: 10.1007/s00402-024-05720-9.
The use of patient-reported outcome measures (PROMS) is the cornerstone of clinical research for surgical disciplines, but the use in daily routine can be challenging. One of the most widespread PROMS in knee surgery is the International Knee Documentation Committee (IKDC) questionnaire. The purpose of the present study was to investigate the potential correlation of the IKDC score with a patient's subjective assessment of the knee using a single question. We hypothesized a correlation between the IKDC score and single question score.
A prospective, single center study in a comprehensive knee outpatient clinic was performed. Patients willing to participate, presenting in the clinic for the first time were asked to complete the IKDC questionnaire and to answer the question: "How does your knee know compare to when you were 16 years old, in percentage?" Pearson correlation coefficient and linear regression were used to analyze the IKDC score and the single-question percentage.
After application of inclusion and exclusion criteria, 310 patients were included. The mean age of the participants was 43.3 ± 9.6 years, and 45.2% of the patients were female. Mean IKDC score was 41.11 ± 13.13, compared to the mean score of the single-question 40.90 ± 22.7 (p = 0.887). The correlation between the IKDC score and the single-question was significant (p < 0.001), however, the person coefficient was 0.460, indicating moderate correlation. The linear regression analysis was also statistically significant (p < 0.001), but with a model fitness of r = 0.211 and B = 0.266. From the 310 patients, 305 (98.4%) found the single-question of more relevance than the IKDC score.
IKDC score and a simple, subjective, knee self-evaluation using a single question demonstrate moderate correlation. The single question can be used for better understanding of discrepancy between the objective score and the patients' subjective perception of knee function or as a fast, single question proxy score.
使用患者报告的结局指标（PROMS）是外科学科临床研究的基石，但在日常临床实践中使用可能具有挑战性。膝关节手术中应用最广泛的PROMS之一是国际膝关节文献委员会（IKDC）问卷。本研究的目的是使用一个单一问题来调查IKDC评分与患者对膝关节的主观评估之间的潜在相关性。我们假设IKDC评分与单一问题评分之间存在相关性。
在一家综合性膝关节门诊进行了一项前瞻性单中心研究。邀请首次到门诊就诊且愿意参与的患者完成IKDC问卷，并回答问题：“与您16岁时相比，您现在的膝关节状况如何，以百分比表示？”使用Pearson相关系数和线性回归分析IKDC评分和单一问题的百分比。
应用纳入和排除标准后，纳入了310例患者。参与者的平均年龄为43.3±9.6岁，45.2%的患者为女性。IKDC平均评分为41.11±13.13，而单一问题的平均评分为40.90±22.7（p = 0.887）。IKDC评分与单一问题之间的相关性显著（p < 0.001），然而，相关系数为0.460，表明为中度相关。线性回归分析也具有统计学意义（p < 0.001），但模型拟合度为r = 0.211，B = 0.266。在310例患者中，305例（98.4%）认为单一问题比IKDC评分更具相关性。
IKDC评分与使用单一问题进行的简单、主观的膝关节自我评估显示出中度相关性。该单一问题可用于更好地理解客观评分与患者对膝关节功能的主观感知之间的差异，或作为一个快速的单一问题替代评分。
