Aasis UnnanuntanaAnas SalehJoseph T. NguyenThomas P. SculcoCharles N. CornellCarol A. MancusoJoseph M. LaneMahidol UniversityHospital for Special Surgery - New YorkWeill Cornell Medical College2018-10-192018-10-192013-02-01Journal of Arthroplasty. Vol.28, No.2 (2013)15328406088354032-s2.0-84872680575https://repository.li.mahidol.ac.th/handle/20.500.14594/32558We prospectively measured functional performances (Western Ontario and McMaster Universities Osteoarthritis Index, Short Form-36, 2-minute walk test, and timed get-up-and-go test) of patients who underwent total hip arthroplasty (THA) and had serum vitamin D levels tested during the preoperative evaluation. Of 219 patients, 102 (46.6%) had low vitamin D levels (25-hydroxyvitamin D. <. 30 ng/mL). Low vitamin D status did not adversely affect short-term function at 6 weeks after THA. In addition, there was no association between serum vitamin D levels and the within-patient changes of scores of each outcome measurement. Because this 6-week period is generally adequate to correct vitamin D deficiency, orthopedic surgeons can safely perform THA without delay. Nevertheless, because vitamin D deficiency impairs bone quality, patients with low vitamin D levels should be treated once identified. © 2013 Elsevier Inc.Mahidol UniversityMedicineArticleSCOPUS10.1016/j.arth.2012.04.027