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The Journal of Arthroplasty, ISSN: 0883-5403, Vol: 23, Issue: 7, Page: 956-959
Hip
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Total Hip Arthroplasty in the Underweight
Alfonso, Daniel T; Howell, R Damani; Caceres, Glinys; Kozlowski, Peter; Di Cesare, Paul EHip
The outcomes of 20 patients diagnosed with osteoarthritis or rheumatoid arthritis with body mass index less than 18.5 (considered underweight) who received total hip arthroplasty at a single institution were reviewed. Surgical complications in the first 30 days after surgery included 1 prolonged surgical site drainage and 3 posterior dislocations. Two patients experienced medical complications that included hematemesis, confusion, aspiration pneumonia, and death. Sixty-five percent of the patients received at least one blood transfusion. Harris hip scores improved from 35 to 81 (P < .05) at an average of 6.1 years (2-10.1 years) of follow-up. Total hip arthroplasty is effective in patients who are underweight; however, they appear to be at an increased risk of dislocation and blood transfusion.
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