Analysis of Footprints Obtained by Harris-Beath Method in Adult Women: Evaluation of Pes Planus on Plantar Indexes

Abstract

Objective: Studies conducted to define the foot structure include the anatomical structures and anthropometric points within the foot. Harris Beath footprint stamp is a frequently used method for obtaining footprints. The data obtained from these marks can be used to identify foot problems such as pes planus. In this study, we aimed to determine the diagnostic sensitivity and cut-off points of different indices in flatfoot. Materials and Methods: 120 healthy adult women between the ages of 18-45 participated in our study. Static right footprints of the volunteers were obtained using the Harris Beath method and transferred to the computer with the help of a scanner. Images using ImageJ 1.51.8 program; arch index, Chippaux-Smiraks index, Stahel index and arch angle were calculated. In the distinction between normal foot and pes planus, arch index ≥0.26 was accepted as the reference. Sensitivity, specificity and cut-off values were calculated by performing nonparametric ROC curve analysis. The curves of the measurements were compared in pairs in terms of diagnostic value. Results: Sensitivity and specificity values for pes planus; It was found 0.86 and 0.68 (cut-off value: 0.374) for the Chippoux-Smiraks index, 0.87 and 0.65 (cut-off value: 0.632) for the Staheli index, and 0.65 and 0.78 (cut-off value: 35.923) for the arch angle. There was no significant difference in pairwise comparison of the ROC curves obtained for each method (P> 0.05). Conclusion: We believe that the Chippoux-Smiraks index, Staheli index and arch angle measurements can be used in pes planus screening in adult women in the population where the study sample was taken, due to their ease of application and harmlessness, as well as their high diagnostic sensitivity and specificity.

Keywords

• Clinical Assessment
• Flatfoot
• Footprint Index
• Receiver Operating Characteristic Curve

Erişkin Kadınlarda Harris-Beath Yöntemi ile Elde Edilen Ayak İzlerinin Analizi: Plantar İndeksler Üzerinden Pes Planus Değerlendirmesi

Abstract

Giriş ve Amaç: Ayak yapısını tanımlamak için yapılan çalışmalar, ayak içindeki anatomik yapıları ve antropometrik noktalarının ölçülmesini içerir. Harris Beath ayak izi ıstampası ayak izi elde edilmesinde sıklıkla kullanılan bir yöntemdir. Bu izlerden elde edilen veriler pes planus gibi ayak sorunlarının belirlenmesinde kullanılabilmektedir. Bu çalışmada farklı indekslerin pes planus konusunda tanı duyarlılığını ve kesme noktalarını belirlemeyi amaçladık. Gereç ve Yöntemler: Çalışmamıza 18-45 yaş aralığındaki 120 sağlıklı yetişkin kadın katıldı. Gönüllülerin statik sağ ayak izleri Harris Beath yöntemi kullanılarak elde edildi ve bir tarayıcı yardımıyla bilgisayar ortamına aktarıldı. Görüntüler ImageJ 1.51.8 programı kullanılarak; ark indeks, Chippaux-Smiraks indeksi, Staheli indeksi ve ark açısı hesaplandı. Normal ayak ve pes planus ayırımında ark indeks ≥0.26 referans kabul edildi. Nonparametrik ROC eğrisi analizi yapılarak duyarlılık, özgünlük ve kesme değerleri hesaplandı. Ölçümlere ait eğriler tanısal değeri bakımından ikili olarak karşılaştırıldı. Bulgular: Pes planus için duyarlılık ve özgünlük değerleri; Chippoux-Smiraks indeksi için 0.86 ve 0.68 (kesme değeri: 0.374), Staheli indeksi için 0.87 ve 0.65 (kesme değeri: 0.632) ve ark açısı için 0.65 ve 0.78 (kesme değeri: 35,923) olarak bulundu. Her bir yöntem için elde edilen ROC eğrilerinin ikili karşılaştırılmasında anlamlı fark saptanmadı(P>0.05). Sonuç: Ayak izinden hesaplanan Chippoux-Smiraks indeksi, Staheli indeksi ve ark açısı ölçümlerinin uygulama kolaylığı ve zararsız olması yanı sıra tanısal duyarlılık ve özgüllüklerinin yüksek olmasıyla, çalışma örnekleminin alındığı toplumda erişkin kadınlarda toplumsal pes planus taramalarında kullanılabileceği kanısındayız

Keywords

• Ayak İzi İndeksleri
• Pes Planus
• Klinik Değerlendirme
• Alıcı İşletim Karakteristik Eğrisi

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