Department of Nursing and Podiatry, Faculty of Health Sciences, University of Malaga, 29071, Malaga, Andalucia, Spain.
IBIMA, University of Málaga, Malaga, Spain.
Eur J Pediatr. 2024 Mar;183(3):1287-1294. doi: 10.1007/s00431-023-05354-w. Epub 2023 Dec 16.
The objective of this study was to establish the accuracy of the resting calcaneal stance position (RCSP) for the assessment of flat foot (FF) in children, aligned to the validity of the foot posture index (FPI). The RCSP cut-off point was explored, in context of both FF prevalence and the relationship between FF and body weight. A total of 205 healthy children, aged 5 to 10 years, participated in a cross-sectional study. Correlation was performed between RCSP and FPI. ROC curve technique was calculated to assess differentiation between groups. A score equal to or greater than 7 on the FPI was used as the 'gold standard' for analysis. The correlation between FPI and RCSP was significant (r = 0.63; p < 0.01). The discrimination score on the ROC curve (6 points/degrees) shows that the model can be used to identify FF through RCSP, with a sensitivity of 67% and specificity of 85% returned. Conclusion: The results of this study indicate the role of RCSP for simple, accessible and quick screening of paediatric FF. This is especially pertinent for non-podiatric healthcare professional without specialised paediatric foot knowledge. What is Known: • Most children develop a normal arch quickly, and flat feet usually resolve on their own between 2 and 6 years of age. • The measurement used to diagnose flat foot in children must be accurate, consistent, and valid to characterize the standard foot position. The Resting Calcaneal Stance Position (RCSP) is another widely used measure to evaluate the position of the flat foot in children. What is New: • The RCSP cut-off point 6 shows a sensitivity of 67% and a specificity of 85% thanks to the FPI as the Gold standard. • The RCSP is useful for health professionals who are not specialised in pediatric foot health. The RCSP is useful to detect flat foot in children.
本研究旨在确定跟骨休息位（RCSP）在评估儿童扁平足（FF）方面的准确性，与足弓指数（FPI）的有效性相对照。研究还探讨了 RCSP 切点在 FF 患病率和 FF 与体重之间关系方面的适用性。共有 205 名 5 至 10 岁健康儿童参与了横断面研究。对 RCSP 和 FPI 之间进行了相关性分析。ROC 曲线技术用于评估组间差异。将 FPI 得分等于或大于 7 用作分析的“金标准”。FPI 与 RCSP 之间的相关性显著（r=0.63；p<0.01）。ROC 曲线的判别评分（6 分/度）表明，该模型可通过 RCSP 识别 FF，其灵敏度为 67%，特异性为 85%。结论：本研究结果表明 RCSP 可用于简单、易于获得和快速筛查儿科 FF，这对于没有专门儿科足部知识的非足病科医疗保健专业人员尤其重要。已知情况：•大多数儿童的正常足弓会迅速发育，扁平足通常会在 2 至 6 岁之间自行消退。•用于诊断儿童扁平足的测量方法必须准确、一致且有效，以确定标准足位。跟骨休息位（RCSP）是另一种广泛用于评估儿童扁平足位置的测量方法。新发现：•由于 FPI 作为金标准，RCSP 切点 6 具有 67%的灵敏度和 85%的特异性。•RCSP 对非专门从事儿科足部健康的医疗保健专业人员有用。RCSP 可用于检测儿童的扁平足。
