Os calcaneus angles in dry bones of Turkish population

Year 2020, Volume: 45 Issue: 4, 1707 - 1712, 27.12.2020

Ayşe Gül Kabakcı Rümeysa Gamze Taşkın Yiğit Çevik

https://doi.org/10.17826/cumj.781515

Abstract

Purpose: The aim of this study was to evaluate calcaneus angles in dry bones belonging to Turkish population.
Materials and Methods: Dry calcaneal bones which age and sex were unknown belonging to Cukurova University Faculty of Medicine were used in this study. The photographs of the bones were taken under fixed light and distance, positioned like lateral direct graph, the Böhler (BA) and Gissane (GA) angles were measured according to the reference points using the digital design program (SketchUp 2016). Calculation sensitivity was 1/10°. Angle value distrubitons and left right relations were examined. After the measurements minimum-maximum, median and standart deviation values were obtained.
Results: Total of 67 dry bones were clasified as left and right. The average BA was measured as (minimum-maximum); 29.68°±4.71° (20.00°-39.80°) on the right side and 31.54°±4.88° (20.20°-41.20°) on the left side. GA average was measured as (minimum-maximum); 102.96°±5.25° (93.70°-114.5°) on the right side, 103.89°±7.14° (93.10°-120.4°) on the left side. For both angles no significant difference was found between left and right calcaneus.
Conclusions: Calcaneus angles may differ between races and populations. These angular values are important in determining calcaneus fractures. Base values of these angles are especially important in determining the baseline values which will be useful in practice. In literature the risk of fractures (especially displaced fractures) increases as the Böhler Angle and Gissane Angle approach the lower limits. Therefore, values obtained in this study will contribute establishing reference values in Turkish population.

Keywords

Böhler Angle, Gissane Angle, Os Calcaneus

Thanks

We would like to thank Prof. Dr. Ahmet Hilmi Yücel for his contributions to this study.

Türk toplumuna ait kuru kemiklerde Os calcaneus açıları

Abstract

Amaç: Türk toplumuna ait kuru kemiklerden os calcaneus açılarının değerlendirilmesi amaçlanmıştır.
Gereç ve Yöntem: Çukurova Üniversitesi Tıp Fakültesi Anatomi Anabilim Dalı'na ait yaşı ve cinsiyeti belli olmayan 67 adet os calcaneus kullanıldı. Sabit ışık altında ve sabit mesafeden lateral direkt grafideki pozisyonuna uygun şekilde konumlandırılan kemiklerin fotoğrafları çekildi, referans noktaları deforme olan kemikler ölçümden çıkartıldı, referans çizgiler aracılığı ile Böhler (BA) ve Gissane (GA) açıları dijital tasarım programı (SketchUp 2016) kullanılarak ölçüldü. Ölçümler 1/100 mm duyarlıkta yapıldı. Açıların dağılım özellikleri ve sağ-sol taraf ilişkisi incelendi. Bu ölçümlerden sonra minimum-maksimum, ortalama ve standart sapma değerleri elde edildi.
Bulgular: Toplam 67 kuru kemikten sağ ve sol olmak üzere iki grup oluşturuldu. Böhler açısı ortalama (minimum-maksimum) değeri sağ tarafta; 29,68°±4,71° (20,00°-39,80°), sol tarafta; 31,54°±4,88° (20,20°-41,20°), Gissane açısının ortalama (minimum-maksimum) değeri sağ tarafta; 102,96°±5,25° (93,70°-114,5°), sol tarafta; 103,89°±7,14° (93,10°-120,40°) olarak bulundu. Her iki açı için sağ ve sol taraf arasında anlamlı fark bulunmadı.
Sonuç: Os calcaneus açıları farklı ırk ve toplumlarda farklı dağılım gösterebilir. Bu açıların değerleri os calcaneus kırıklarının belirlenmesinde önem arz etmaktedir. Özellikle taban değerlerinin belirlenmesi uygulamalarda yarar sağlayacaktır. Literatüre bakıldığında, Böhler ve Gissane açı değerleri alt sınırlara yaklaştıkça kırık (özellikle deplase kırıklar) riskinin arttığı görülmektedir. Çalışmamızda saptadığımız değerler Türk toplumuna ait referans değerlerin belirlenmesine katkı sağlayacaktır.

Keywords

Böhler Açısı,, Gissane Açısı, Os Calcaneus

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