A STUDY ON OLECRANO-CORONOID SEPTAL APERTURE (SUPRATROCHLEAR FORAMEN (STF) OF HUMERUS)

• Author Details:   
• Mallikarjun Adibatti
• Asha K

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Introduction: A thin plate of bone separates the olecranon and coronoid fossa which may become perforated in some cases to give rise to a foramen known as ‘septal aperture’ or ‘Supratrochlear Foramen’ (STF). Supratrochlear foramen (STF) is an important variation in the lower end of humerus which has been neglected because of paucity of literature. The incidence of foramen ranges from 6-60% in different races.
Materials and Methods: The presence of STF was studied in 100 dry adult humeri of unknown sex from Department of Anatomy, J. J. M. Medical College. Davangere and ESIC Medical College & PGIMSR, Chennai. Each humerus was studied for the presence of the STF, Translucency of septum.
Results: The STF was seen in 10% of humeri, oval shape being more common and present more frequently on left side compared to right side humeri.
Conclusion: The anatomical knowledge of STF is beneficial for Anthropologists & clinicians for surgical intervention.The knowledge of the presence of supratrochlear foramen (STF) in a humerus may be important for preoperative planning for treatment of supracondylar fractures.

Key Words: Humerus, Supratrochlear foramen, olecranon fossa, coronoid fossa.