Morphometry of Suprascapular Notch and its Correlation with that of Scapula

Suprascapular notch is the common site for the entrapment of the suprascapular nerve. Suprascapular nerve compression usually presents with vague pain across the scapula or dull shoulder ache. It is more common in over head athlets like volleyball players. Hence the study of morphology and morphometry of the notch is important clinically. InTRoduCTIonvariations of the suprascapular notch are important clinically. The size of the notch may play a role in the predisposition for the entrapment (1, 2). Smaller the size of the notch, greater the chance of nerve entrapment. Abduction of the shoulder joint beyond 90 0 may exert traction on the suprascapular nerve, which leads to its compression against transverse scapular ligament. Narrow suprascapular notches have been reported in patients with the nerve entrapment. Suprascapular nerve compression may present with vague pain radiating across the scapula, dull shoulder ache, limitations of shoulder joint movements and wasting of supraspinatus and infraspinatus (2). Incidence of suprascapular neuropathy is 7 -10%. Most of the reported incidence is in overhead athlets like volleyball players accounting 12-33% of athletic population (3). This work is in continuation of author's earliar work on scapule (4).