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IJAR.2017.279

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Type of Article:  Original Research

Volume 5; Issue 3.2 (August 2017)

Page No.: 4177-4181

DOI: https://dx.doi.org/10.16965/ijar.2017.279

STUDY OF GLENOID CAVITY OF HUMAN SCAPULA AND ITS CLINICAL IMPORTANCE

Ajay M. Parmar *1, Bhadresh Vaghela 2, Kanan P. Shah 3, G C Agarwal .

*1 Assistant Professor , Department of Anatomy, PMCH, Udaipur, India.

2 Assistant professor, Anatomy Department, GMERS Medical Collage, Valsad, Gujarat, India.

3 Associate Professor, Department of Anatomy, Smt. N.H.L. MMC, Ahmedabad, India.

4 Professor&Head, Department of Anatomy, PMCH, Udaipur, India.

Address for Correspondence: Dr. Ajay M. Parmar,  Assistant professor, Department of Anatomy, PMCH, Udaipur, India. E-Mail: Drajay9118@gmail.com

ABSTRACT:

Introduction: The morphology of the glenoid cavity is highly variable. It articulates with the head of the humerus at the glenohumeral joint. Shoulder joint is frequently dislocated so the knowledge of anatomic parameters and different shape of glenoid cavity are necessary for complete understanding of the mechanics of shoulder joint. The aim of the present study was to obtain the anthropometric data of the glenoid cavity of the scapula and to study the various shapes of the glenoid cavity which will help in management of shoulder pathology.

Materials and Methods: This study was done on 60 (30 right, 30 left) adult human scapula. Different parameter superior-inferior(SI), anterior-posterior diameter of the lower half(AP-1), anterior-posterior diameter of the upper half(AP-2) of glenoid cavity  have been measured with the help of digital vernier calipers and glenoid cavity index was calculated. The shape of the glenoid cavity was classified as inverted comma shaped, pear shaped and oval shaped depending upon the presence or absence of a notch on the glenoid rim.

Results: The average SI diameter on right and the left sides were 37.31±2.91mm and 37.46±2.92 mm respectively. The average AP-1 diameter of the right glenoid was 25.90±2.09 mm and that of the left was 25.70±2.32mm. The mean AP-2 diameter of the right glenoid was 17.89±1.52 mm and that of the left was 18.15±1.80mm. The mean GCI of the right glenoid was 69.54±4.22 mm and that of the left was 68.65±4.12 mm.

Conclusion: All the parameters showed a very close value for the right and left side. The difference seen between the values of present study and that of other workers could be explained on the basis of ethnic and racial variations. This fact may be taken into consideration while performing shoulder arthroplasty and designing glenoid prostheses in rajasthan population. The current study also recorded a higher percentage of the glenoid notch (>80%) in the anterior margin of the glenoid cavity. While evaluating defects and lesions of the glenoid, this fact could be useful. Thus a sound knowledge of various parameters of the glenoid cavity is important for the anatomists, anthropologists, orthopaedicians and prosthetists.

Key words: Scapula, Glenoid cavity, Glenoid notch, Glenohumeral joint.

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Cite this article: Ajay M. Parmar, Bhadresh Vaghela, Kanan P. Shah, G C Agarwal. STUDY OF GLENOID CAVITY OF HUMAN SCAPULA AND ITS CLINICAL IMPORTANCE. Int J Anat Res 2017;5(3.2):4177-4181. DOI: 10.16965/ijar.2017.279