| ORIGINAL ARTICLE |
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| Year : 2016 | Volume
: 4
| Issue : 1 | Page : 20-25 |
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Determination of handedness: An anthropometric evaluation of the glenoid cavity
GS Oladipo, EO Aigbogun, LG Akani
Department of Anatomy, College of Health Sciences, University of Port-Harcourt, Choba, Rivers State, Nigeria
Correspondence Address:
G S Oladipo
Department of Anatomy, College of Health Sciences, University of Port-Harcourt, PMB 5323 Choba, Rivers State
Nigeria
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/2315-7992.190463
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Background: The search for suitable parameters that defines handedness from skeletal remains a concept yet to be achieved. This has created postulations and theories of guess and noninvestigative proofs. Anthropometric parameters provide insight on the variation that exists between anatomical structures. Such variations may also exist between the two sides of a bone. Aims: This study was therefore aimed at determining the anthropometric relationship and variation between the right and left sides of the glenoid cavity of the scapula and its implication in forensic medicine. Materials and Methods: This study drew samples from 173 nondeformed, well-macerated scapulae bones comprising 75 right (R) and 98 left (L) of undetermined sex and age; obtained from the Department of Human Anatomy at various institutions in South-South Nigeria. Two anthropometrical parameters were measured from the glenoid cavity using sliding digital caliper calibrated to 0.00 mm. The measured dimensions included maximum glenoid height (MGH), maximum glenoid width (MGW), and the glenoid index (GI) was calculated by dividing MGW by MGH. SPSS Version 20 was used to analyze the obtained data. Results: The mean ± standard deviation of the MGH was 36.87 ± 3.94 mm (R = 37.71 ± 4.24 mm, L = 36.22 ± 3.58 mm); MGW was 25.15 ± 3.60 mm (R = 26.20 ± 3.30 mm, L = 24.35 ± 3.64 mm). Statistical analysis using ANOVA and t-test showed the MGH (t = 2.444, P = 0.016) and MGW (t = 3.941, P< 0.01) were observed to be significantly greater in the right side. The GI was calculated as 0.682 ± 0.059; the right side (0.696 ± 0.055) was significantly smaller than the left (0.671 ± 0.060). Conclusion: The evidence from this study can be an indication of kinanthropological application of the scapula; in which a side is most frequently used than the other (handedness). The result of this study can aid in decision making; in the reconstruction of damaged skeletal part, an identification which can be partial or complete and biological profiling. Recommendation: We believe that the validation of this finding is vital; hence, a larger sample from different regions should be studied as to reach significant conclusions. |
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