Abstract
Purpose
To measure the vitamin D level of the patients who received total knee arthroplasty (TKA) and evaluate the effect of vitamin D level on the results of TKA.
Materials and Methods
From February 2012 to January 2013, 151 female patients (204 knees) who underwent primary TKA by one surgeon were included in our study. Preoperative vitamin D level was measured and analyzed the relationship between that and preoperative Visual Analogue Scale (VAS), and Knee Society Knee Score (KS) and Function Score (FS). Thirty-nine patients (39 knees) who received unilateral TKA and could be followed up more than 1 year after operation were evaluated for the relationship between vitamin D level and postoperative VAS, KS and FS, and Western Ontario and McMaster Universities Arthritis Index (WOMAC) score.
Results
Among all patients, the vitamin D deficient patients (less than 20ng/ml of serum 25-hydroxyvitamin D3 (25(OH)D3) level) were 118 cases (78.1%) and there was no correlation between vitamin D level and preoperative VAS, and KS and FS (p>0.05). For the unilateral TKA patients who could be followed up more than 1 year after operation, as the level of vitamin D was higher, postoperative VAS was lower, and KS and FS were higher(p<0.05), and there was no correlation with WOMAC score.
Conclusion
For the patients with TKA, lower vitamin D level was a risk factor for a unsatisfactory outcome, so the supplement of the vitamin D should be considered for those patients.
