ABSTRACT
Introduction: In oral smear, a small condensed mass of sex chromatin usually located just inside the nuclearmembrane of the nucleus is called Barr body. The study of Barr bodies is advantageous for sex determination bypresence or absent. Oral mucosal smear of 150 students (79 female students and 71 male students in the agegroup of 17 to 32 years) from P.D.U. Govt. medical college, Rajkot were selected with aim to study oral mucosalcells for presence of sex chromatin in oral mucosal smear and to measure efficacy of oral smear in determinationof sex by presence of sex chromatin during 2012 to 2014.Method: Oral smear was prepared for sex determination by scrapping buccal mucosa with wooden spatula andobtained turbid suspension, these were smeared on a glass slide, fixed by mixture of Methanol and Glacialacetic acid in the ratio of 3:1 for 10 min and stained by Carbol Fuschin for 15-20 min at room temperature, aftertaking informed written consent from students. Smears were examined with Compound light uniocular microscopeunder 100x magnification (Oil immersion), cells and nuclei were easily identified.Observations and Results: One hundred cells were counted in each slide. Mean value of Barr body positive cellsin male was 0.647 and Mean value of Barr body positive cells in female was 35.215 and range of percentage ofBarr body positive cells in male was 0-5% and range of percentage of Barr body positive cells in female was 0-55%. Presence of sex chromatin in oral mucosal cell of female was statistically significant. (P value < 0.05).Conclusion: Mean value of Barr body positive cells in male was 0.647 ± 1.148, Mean value of Barr body positivecells in female was 35.215 ± 10.28, range of percentage of Barr body positive cells in female was 0-55% and rangeof percentage of Barr body positive cells in male was 0-5%. Presence of sex chromatin in oral mucosal cell offemale was statistically significant. (P value<0.05) Mean values of sex chromatin positive oral mucosal cells ofmale was lower than mean value of sex chromatin positive oral mucosal cells in female, that is the supportingfact that sex chromatin is present in female in higher frequency. Sex chromatin can be used as simple and easilyavailable method for sex determination.
ABSTRACT
Introduction: The Glenoid cavity is regarded as the head of the scapula. The morphology of glenoid cavity ishighly variable. It articulates with the head of the humerus at the glenohumeral joint. Shape and dimensions ofthe glenoid cavity are important in the design and fitting of glenoid components for total shoulder arthroplasty.An understanding of variations in normal anatomy of the glenoid is essential while evaluating pathologicalconditions like osseous bankart lesions and osteochondral defects. The aim of the present study was to obtainthe anthropometric data of the glenoid cavity of the scapula and to study the various shapes of the glenoid cavitywhich will help in management of shoulder pathology.Materials and Methods: This study was done on 74 dry, unpaired adult human scapulae (36 right side and 38 leftside )of unknown sex belonging to the saurashtra population. Maximum superior-inferior diameter and Maximumanterior-posterior diameter of the glenoid cavity were measured and. The shape of the glenoid cavity wasclassified as inverted comma shaped, pear shaped and oval shaped depending upon the presence or absence ofa notch on the glenoid rim.Results: The average SI diameter on right and the left sides were 38.49 ± 3.17mm and 38.06 ± 3.34mm respectively.The average AP-1 diameter of the right glenoid were 24.76±2.49mm and that of the left was 24.23 ± 2.14mm.Themean AP-2 diameter of the right glenoid was 18.83±2.19 mm and that of the left was 17.97±2.08.Conclusion: These findings suggest that the difference in size of the glenoid cavity in Gujarati population mayhave to be taken into consideration while deciding the size of the glenoid component in shoulder arthroplasty inthis population.