ANTHROPOMETRIC ANALYSIS OF THE HIP JOINT IN CENTRAL INDIA POPULATION USING COMPUTED TOMOGRAPHY

Background: The presently available hip prosthesis used in hip arthroplasty are designed based on the anthropometry of Western patients. These prosthesis do not replicate the exact anatomy of Indian patients, leading to postoperative complications and requiring revision surgery for correction. If the manufacturers keep in considering the anthropometric parameters of Indians while designing the prosthesis, this may lead to better clinical and functional outcome and higher patient satisfaction. So the present study was undertaken to understand the anthropometric variables of hip joint of Central Indian population and to compare these variables with the other Indian Ethnic groups and western population using computed tomographic images. Materials And Methods: We had included 200 patients and both the left and right side hip joints were analysed. The anthropometric variables included were Neck-Shaft Angle (NSA), Head Diameter (HD), Neck Width (NW), Acetabular Angle of sharp(AA), Horizontal Offset (HO), Vertical Offset (VO), Medullary Canal Diameter at the level of Lesser Trochanter (MDLT), and Acetabular Version (AV) were measured in all these individuals. Comparison of these parameters was done between the left and right side and among the males and females and compared with various populations and statistically analyzed Result: The mean values were NSA 132.53°, NW 25.11 mm, HD 43.94 mm, AA of sharp 43.11°, HO 43.76 mm, VO 56.37 mm, MDLT 23.00 mm, and AV 19.47°. We found a large variations in these parameters among the Indian ethnic groups and western population. Significant differences were seen between the males and females. Conclusion: This study indicates that there are significant differences in anthropometric parameters of proximal femur among the Central India population compared with Western population. Even within the Indian population, the anthropometric parameters vary from region to region.