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IJAR.2017.395

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Type of Article:  Original Research

Volume 5; Issue 4.2 (November 2017)

Page No.: 4558-4562

DOI: https://dx.doi.org/10.16965/ijar.2017.395

THE STUDY OF MORPHOLOGY AND MORPHOMETRY OF ACETABULUM ON DRY BONES

Gangavarapu  Sreedevi *1, Muralidhar Reddy Sangam 2.

*1 Assistant  Professor, Department of Anatomy, NRI Medical College, Chinakakani, Guntur, Andhra Pradesh, India.

2 Professor & HOD, Department of Anatomy, NRI Medical College, Chinakakani, Guntur, Andhra Pradesh, India.

Address for Correspondence: Dr Gangavarapu  Sreedevi, Assistant  Professor, Department of Anatomy,  NRI Medical College, Chinakakani, Guntur-522503, Andhra Pradesh, India. Mobile: 9849591825 E-Mail: gangavarapus13@gmail.com

ABSTRACT

Background: Acetabulum is a deep cup shaped cavity present on the lateral aspect of the hip bone, which is contributed by three bones (i.e. – ilium, ischium & pubis) bounded by a ridge known as rim of acetabulum. This aperture is divided into articular & non-articular part, non-articular part is called as acetabular fossa covered by pad of fat & articular part is known as lunate surface articulating with head of femur forming the hip joint. The articular part of acetabular cavity is deficient inferiorly (acetabular notch) where it ends anteriorly as pointed and posteriorly as semilunar shaped.

Purpose of study:  To obtain the morphometric data of acetabular cavity and to determine the relation between diameter and depth of acetabular cavity and to study the morphology  of anterior acetabular ridge  and ends of acetabular labrum.

Materials and Methods: Human adult dry hip bones 80 ( 39 right and 41 left) of unknown age and sex were collected from the Department of Anatomy , NRI Medical College , Chinakakani. Bones with osteoarthritis of hip, evidence of trauma or any other skeletal disorders were excluded. Three morphometrical and two morphological parameters were evaluated.   Measurements of diameter, depth of acetabulam and width of acetabular notch were taken by digital vernier calipers and correlation between parameters were analysed using pearson correlation test.

Results: In the present study, the mean diameter of acetabulum on right and left sides is 49.40±3.5mm, 48.06±5.65mm respectively and mean depth on right and left sides is  24.09±2.69mm, 25.16±2.84mm. The width of acetabular notch on right and left sides were 22.25±2.97mm, 22.52±2.46mm respectively. Anterior acetabular ridge was  curved in 43.75%(35), straight in 27.5%(22), angular in 22.5%(18),and  irregular in 6.25%(5) of bones and 64 (80%) hip bones showed pointed anterior end  and lunate posterior end, in 12 bones (15%)  anterior and posterior ends of labrum are lunate shaped , in 4 bones (5%) both anterior and posterior ends of labrum are   pointed.

Conclusion: Knowledge of the dimensions  of  acetabulum  are vital to understand the mechanics  of hip joint, and will assist the prosthetists to construct the suitable prostheses and  helps the surgeons in determining the dysplasia of acetabulum and in total hip  arthroplasty

Key words: Acetabulum, Prostheses, Hip Arthroplasty.

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Cite this article: Gangavarapu Sreedevi, Muralidhar Reddy Sangam. THE STUDY OF MORPHOLOGY AND MORPHOMETRY OF ACETABULUM ON DRY BONES. Int J Anat Res 2017;5(4.2):4558-4562. DOI: 10.16965/ijar.2017.395