Type of Article:  Original

Volume 7; Issue 2.1 (April 2019)

Page No.: 6443-6449

DOI: https://dx.doi.org/10.16965/ijar.2019.138


Loïc Fonkoue *1, 2, Jean Marc Ndoye 1, Zacharie  Sando 2, Jean Joel Bigna 2, Abdoulaye Ndiaye 1, Abdarahmane Dia 1.

1 Laboratory of anatomy and organogenesis, Cheikh Anta Diop University of Dakar, Sénégal. B.P. 5005 Dakar – Fann, Dakar, Sénégal.

2 Department of morphological sciences, University of Yaoundé 1, Cameroon. PO BOX 1364 Yaoundé.

Correspondence:  Dr Loïc Fonkoue, Department of morphological sciences, Faculty of Medicine and Biomedical Sciences, University of Yaoundé 1. PO Box 3911 CURY Yaoundé, Cameroon. Phone: +237 699 66 67 57 / +32 465 39 37 10 E-Mail: fonkoueloic@yahoo.fr


Background: The supratrochlear foramen (STF) is the most important anatomical variation of the humerus with great significance. However, in our environment, studies are rare and the FST remains almost unknown. This research aimed to study the prevalence of STF in a West African sample, its morphological characteristics and predictive factors of its presence.

Material and methods: We investigated the presence, shape, side, situation and dimensions of the STF in 142 human adult humeri from West African cadavers. The morphometric measurements of the humeri were taken and we analyzed the predictive factors of the presence of the STF by binary logistic regression.

Results: The prevalence of the STF was 36.6%. In the depth of the olecranon fossa, the STF was closer to the medial epicondyle (24.9 ± 2.9 mm) than to the lateral epicondyle (26, 1 ± 2.8mm). The STF occurred in oval (50%), round (25%) triangular (23.1%) and irregular (1.9%) shapes. The mean transverse diameter of the STF was 6.5 ± 2.7 mm and 4.5 ± 1.5 mm for the vertical diameter. Humeri with STF had a significantly lower inter-epicondylar width; higher olecranon fossa width and height; and were significantly predominant on the left. The inter-epicondylar width (OR=1.10, P<0.001) and the width of the olecranon fossa (OR=0.81 P<0.001) were associated with the absence of STF.

Conclusion: A third of humeri in our population have STF. This implies that anatomists, anthropologists, orthopedists and radiologists should be aware of this frequent anatomical variation with great implications.

Key words: Supratrochlear foramen, West-Africans, Predictive factors.


  1. Varlam H, Antohe D, Chistol RO. Supracondylar process and supratrochlearforamen of the humerus: a case report and a review of the literature. Morphologie 2005;89(286):121-125.
  2. Chagas CA, Gutfiten-Schlesinger G, Leite TF, Pires LA, Silva JG Anatomical and Radiological Aspects of the Supratrochlear Foramen in Brazilians. J Clin Diagn Res 2016;10(9):10-13.
  3. Hirsch IS. On a foramen in the lower extremity of the humerus. Radiology 1928;10:199-208.
  4. Lamb D. The olecranon perforation. Am Anthropol 1890;3:159-165.
  5. Ndou R, Smith P, Gemell R, Mohatla O. The supratrochlear foramen of the humerus in a South African dry bone sample. Clin Anat 2013;26(7):870-4.
  6. Nayak SR, Das S, Krishnamurthy A, Prabhu LV, Potu BK. Supratrochlear foramen of the humerus: an anatomico-radiological study with clinical implications. Ups J Med Sci 2009;114(2):90-94.
  7. Singhal S, Rao V. Supratrochlear foramen of the humerus. Anat Sci Int 2007;82(2):105-7.
  8. Meckel JH (1825) cited in Kate BR, Dubey PN. A note on the septal apertures in the humerus of Central Indians. . Eastern Anthropologist 1970;33:270-84.
  9. Akpinar F, Aydinlioglu A, Tosun N, Dogan A, Tuncay I, Unal O. A morphometric study on the humerus for intramedullary fixation. Tohoku J Exp Med 2003;199(1):35-42.
  10. Paraskevas GK, Papaziogas B, Tzaveas A, Giaglis G, Kitsoulis P, Natsis K. The supratrochlear foramen of the humerus and its relation to the medullary canal: a potential surgical application. Med Sci Monit 2010;16(4):119-123.
  11. De Wilde V, De Maeseneer M, Lenchik L, Van Roy P, Beeckman P, Osteaux M. Normal osseous variants presenting as cystic or lucent areas on radiography and CT imaging: a pictorial overview. Eur J Radiol 2004;51(1)77-84.
  12. Veerappan V, Ananthi S, Kannan N, Karthikeyan P. Anatomical and radiological study of Supratrochlear foramen of humerus. World journal of pharmacy and pharmaceutical sciences 2013;2(1):313 -320.
  13. Bhanu S, Sankar D. Anatomical note of supratrochlear foramen of humerus in south costal population of Andhra Pradesh. Narayana Medical Journal 2012;1(2).
  14. Glanville EV. Perforation of the coronoid-olecranon septum. Humero-ulnar relationships in Netherlands and African populations. Am J Phys Anthropol 1967;26(1):85-92.
  15. Mays S. Septal aperture of the humerus in a mediaeval human skeletal population. Am J Phys Anthropol 2008;136(4):432-40.
  16. Christos P, Marios P, Apostolos P. Rare cases of humerus septal apertures in Greeks. Trends Med Res 2011;6:178–183.
  17. Sunday O, Olusegun O, Oluwabunmi B. The Supratrochlear Foramen of the Humerus: Implications for Intramedullary nailing in distal Humerus. Journal of Biology, Agriculture and Healthcare 2014;4(7):136-139.
  18. Chatterjee K. The incidence of perforation of olecranon fossa in the humerus among Indians. Eastern. Anthropologist 1968;21:270-84.
  19. Kate B, Dubey P. A note on the septal apertures in the humerus of Central Indians. Eastern Anthropologist 1970;33:105-10.
  20. Singh S, Singh S. A study of the supratrochlear foramen in the humerus of North Indians. J Anat Soc India 1972;21:52-6.
  21. Rao EVK, Shiny VBH. A study on the incidence and size of the supratrochlear foramen of the humerus in south indian dry adult humeri with its clinical importance. Int J Anat Res 2018; 6(3):5647-5651.
  22. Trotter M. Septal apertures in the humerus of American Whites and Negroes. Am J Phys Anthropol 1934;19:213-228.
  23. Mathew AJ, Gopidas GS, Sukumaran. A Study of the Supratrochlear Foramen of the Humerus: Anatomical and Clinical Perspective. J Clin Diagn Res 2016;10(2):05-8.
  24. C S, Afroze KH, S L. An osteological study of supratrochlear foramen of humerus of south Indian population with reference to anatomical and clinical implications. Anat Cell Biol, 2016;49(4):249-253.
  25. Erdogmus S, Guler M, Eroglu S, Duran N. The importance of the supratrochlear foramen of the humerus in humans: an anatomical study. Med Sci Monit 2014;20:2643-50.
  26. Kubicka AM, Myszka A, Piontek J. Geometric morphometrics: does the appearance of the septal aperture depend on the shape of ulnar processes? Anat Rec. 2015;298(12):2030-8.
  27. Akabori E. Septal aperture in the humerus in Japanese, Ain and Koreans. Am J Phys Anthrop 1934;18:395–401.
  28. Benfer RA, McKern TW. The correlation of bone robusticity with the perforation of the coronoid-olecranon septum in the humerus of man. Am J Phys Anthropol 1966. 24(2):247-52.
  29. Steyn M, Iscan MY. Osteometric variation in the humerus: sexual dimorphism in South Africans. Forensic Sci Int 1999;106(2):77-85.
  30. Krishnamurthy A, Yelicharla A, Takkalapalli A, Munishamappa V, Bovinndala B, Chandramohan M. Supratrochlear foramen of humerus—A morphometric study. Int J Biol Med Res 2011;2:829-831.
  31. Ndou R, Schepartz LA. Morphometric Characteristics of the Humerus and Ulna in Limbs Bearing the Supratrochlear Aperture (STA). Anat Rec, 2016;299(2):220-33.

Cite this article: Loïc Fonkoue, Jean Marc Ndoye, Zacharie Sando, Jean Joel Bigna, Abdoulaye Ndiaye, Abdarahmane Dia. ANATOMICAL STUDY AND MORPHOMETRIC PREDICTIVE FACTORS OF THE SUPRATROCHLEAR FORAMEN OF THE HUMERUS IN A WEST AFRICAN SAMPLE. Int J Anat Res 2019;7(2.1):6443-6449. DOI: 10.16965/ijar.2019.138