Relative frequency of avascular necrosis of the hip as indication for primary Total Hip Arthroplasty in the USA vs. India

Background: Primary total hip arthroplasty (THA) is performed for a variety of pathologies. Osteoarthritis (OA) is the most common indication for THA in the United States of America (USA). The study aims to establish the incidence of indications for THA in the USA as compared to India and to assess...

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Bibliographic Details
Published in:Journal of orthopaedics 2023-02, Vol.36, p.1-6
Main Authors: Yakkanti, Ramakanth R., Haziza, Sagie, Wasserman, Nathan A., Annapareddy, Adarsh, Ratnakar, V., Karri, S.R., Hernandez, Victor H., Gurava Reddy, A.V., Vaishya, Raju
Format: Article
Language:English
Subjects:
Avascular necrosis
AVN
India
National inpatient sample
THA
Total hip arthroplasty
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Summary:Background: Primary total hip arthroplasty (THA) is performed for a variety of pathologies. Osteoarthritis (OA) is the most common indication for THA in the United States of America (USA). The study aims to establish the incidence of indications for THA in the USA as compared to India and to assess whether Avascular Necrosis (AVN) of the Hip is a more frequent indication for THA in India than in the USA. The National Inpatient Sample database (USA) and two Indian databases (one national and one regional) were analyzed to identify all patients who underwent primary THA within the databases. The relative frequencies of each indication for THA were determined. The patients' demographics and risk factors for AVN of the hip were recorded and assessed. The data were then compared across the patients in the USA and the patients in India. 225,061 primary THA patients were identified in the USA database and 20,288 in the Indian database. The proportion of primary THA performed for AVN in the American database (5.97%) was significantly lower than the proportion of THA performed for AVN in the Indian database (51.8%). The relative frequency of AVN as an indication for THA is significantly higher in India than in the USA. It is important to recognize the differences in relative indications for THA between world populations, as outcomes after THA among Eastern populations of the world may not be equivalent to ones seen in their Western counterparts. •Avascular Necrosis is a more prominent indication for Total Hip Arthroplasty in India than in the United States.•Osteoarthritis is the most common indication for Total Hip Arthroplasty in the United States.•Avascular Necrosis is the most common indication in India.
ISSN:0972-978X
0972-978X
DOI:10.1016/j.jor.2022.12.002