Abstract
Introduction
The Human immunodeficiency virus (HIV) has changed all aspects of orthopaedic practice in Durban, South Africa. In our Arthroplasty unit, we have noticed a significant increase in HIV positive patients that required total hip arthroplasty (THR).
Method
We conducted a retrospective, demographic chart review of all patients below the age of 55years undergoing primary THR in our unit from 2004 to 2011.
Results
The results show a steady rise from 22 THR's in 2004, to 51 in 2011. There was a demographic change in patients presenting with avascular necrosis (AVN) as primary diagnosis, with a significant increase of HIV positive patients. The new demographic group that makes up 44% of our current practice are black Africans, particularly females (70% of all black patients). The majority of them (66%) have none of the previous risk factors for AVN (alcohol, smoking and steroids) and out of this group 52% are HIV positive on anti-retroviral medication (ARV's) with an average CD4 count of 516. All HIV positive patients, in this demographic study, were black African females.
Discussion
In the past, the typical patient receiving a primary THR for AVN in Durban was a young Asian male. These patients had strong associations with alcohol, smoking and oral steroid use. This demographic group makes up 33% of our current practice. Demonstrated clearly is a change in demographics of patient population and this lead to a number of interesting questions. What caused this sudden increase in HIV related AVN in our unit? To what extend do ARV's contribute to this accelerated progression of AVN and HIV?
This paper focuses our attention on HIV and its affect in modern orthopaedics. The challenge is great, the question remains … how will we respond?
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