Glenoid Cavity And Its Clinical Significance In The Region Of Bihar: A Morphological And Morphometric Study

Abstract

Background: The articular surface of the head of the humerus is much larger than the glenoid cavity (GC). The joint's concavity is deepened by the glenoid labrum (fibro-cartilaginous rim), which is attached to the fossa's margin. However, despite this, both articulating surfaces are not perfectly congruent in various joint movement positions, leaving the joint with a loose packing. During lateral rotation and abduction of the joint, it is probably closely packed.

 Aim and Objectives: The current study's aim was to observe and quantitatively measure the dimensions of the glenoid cavity in an adult, dry human scapula.

 Materials and Methods: 130 dry (right side: 65 and left side: 65), unpaired, fully ossified adult human scapulae of unknown sex and age were represented as the study's subjects in this prospective cross-sectional study.

 Results: We observed that pear-shaped glenoid cavities in the scapula were the most common (43.8%), followed by oval-shaped glenoid cavities (34.62%), while inverted comma-shaped glenoid cavities (21.53%) were the least common.

 Conclusion: Any variation from the shoulder joint's normal anatomy will give orthopaedic surgeons a better understand- ing   of the anatomy of the joint, which they can use to correct the joint's pathology surgically. Also, using this information will make it easier to select the proper prosthesis size for a shoulder arthroplasty.