Supra-scapular foramen in Indian dry scapulae

Abstract

Abstract Background and aims : Supra-scapular notch is roofed by superior transverse scapular ligament and converted into a foramen which provides passage for suprascapular nerve. When it is completely ossified that time it manifest as supra-scapular foramen in dry scapulae. Variations of superior transverse scapular ligament include calcification, partial or complete ossification and multiple bands. Presence of this foramen in dry scapulae is considered to be rare. Aim of the study was to verify the prevalence of supra-scapular foramen in Indian dry scapulae. Materials and methods : A total of three fifty dry scapulae were analyzed (Right- 176, Left-174) to see the presence of supra-scapular foramen. Results : In the present study, suprascapular foramen was present in 25 right and in 12 left sided scapulae i.e., 10.57% incidence which is alarming. Conclusion : Present study demonstrates that suprascapular foramen which is the result of complete ossification of superior transverse scapular ligament, is common in Indian population. The anatomical knowledge of this foramen is of extreme importance for clinicians; it can be a risk factor during surgical explorations involving a suprascapular nerve decompression.