Morphology of Suprascapular Notch: A Study on 176 Dry Scapulae.

ABSTRACT

Back ground Suprascapular notch (SSN) is present along the superior border of the scapula. It is bridged by the supascapular ligament. Suprascapular nerve passes inferior to it. Suprascapular nerve entrapment frequently occurs at the suprascapular notch. A narrow notch or the ossified suprascapular ligament is the frequently encountered culprits. Aim: To study the morphology of suprascapular notch among 176 dry scapulae. Materials and Method: The study was conducted on 176 adult dry human scapulae in the department of Anatomy, KIMS, Bangalore. Among 176 scapulae 88 were right sided & 88 left sided. Various shapes of scapular notches were noted & classified into 6 types based on Rengachary classification. Results: The most common type of suprascapular notch in the study is Type II (R-24, L-37) & least common is Type VI (R-5, L-5). Suprascapular notch was absent in 8 Scapulae. Conclusion: We could find all the 6 types of scapular notches, most common type being type II ((34.65%) and least common type - type VI. This study is an attempt to know the various shapes of suprascapular notch.