Study on the incidence of occurrence of the ossification of superior transverse scapular ligament with its clinical implication

Introduction: Supra scapular notch is present on the superior border of the scapula. It gives passage to thesuprascapular nerve. The supra scapular notch is bridged by the superior transverse scapular ligament andconverted into supra scapular foramen. Ossification of this superior transverse scapular ligament may compressor entrap the suprascapular nerve which is passing through the foramen. The present study was undertaken tofind out the incidence of occurrence of the ossification of superior transverse scapular ligament.Materials and methods: 89 scapulae were collected from the Department of Anatomy, Deccan College of MedicalSciences, Hyderabad. Damaged scapulae were excluded. All the scapulae were examined to note the incidence ofoccurrence of the ossification of the transverse scapular ligament and also any variations of it.Results: 15 scapulae were bearing ossified superior transverse scapular ligament in which 6 were of the rightside and 6 were of the left side. Duplication of the superior transverse scapular ligament was observed in one leftscapula. Incomplete ossification was observed in 2 scapulae 1 on the right and another on the left side.Conclusion: Based on the results of the present study, ossification of the transverse scapular ligament is not veryrare in this populations group. So, the knowledge about the ossification of superior transverse scapular ligamentand the risk of supra scapular nerve entrapment is very much essential for the physicians and the surgeons whiledealing with these cases.

A Study On The Incidence And Size Of The Supratrochlear Foramen Of The Humerus In South Indian Dry Adult Humeri With Its Clinical Importance

Introduction: Supratrochlear foramen of the humerus is usually not mentioned in most of the anatomy andorthopaedics literature. Knowledge of supratrochlear foramen is important in the treatment of supracondylarfractures of the humerus, intramedullary humeral nailing, and preventing misinterpretation of X-Rays at theelbow joint, alteration of fracture patterns.Materials and Methods: The present study was carried out on 132 dried human humeri of unknown sex and age.Incidence, shape, and size of the supratrochlear foramen was recorded. Vertical and transverse diameters weremeasured by using a double tipped compass and sliding calipers.Results: Out of the 132 bones studied, 34 bones showed the presence of supratrochlear foramen. It was observedthat the incidence was more on the left side than on the right. The most common shape observed was oval in19.69%, round in 3.03%, bilobed in 1.51% and irregular in 1.51% of the specimens. Mean transverse diameter ofthe supratrochlear foramen on the left and right sides were 7.25mm and 8.1mm respectively. The mean verticaldiameter of supra trochlear foramen on the left and right sides were 5.3mm and 5.4mm respectively.Conclusion: Knowledge of supratrochlear foramen of the humerus helps clinicians in diagnosis and treatmentstrategies, while dealing with the elbow pathologies, fractures of the lower end of the humerus and supracondylarfractures of the humerus.