Previous genome-wide association studies (GWAS) have reported significant association of the single nucleotide polymorphism (SNP) rs8044769 in the fat mass and obesity-associated gene (FTO) with osteoarthritis (OA) risk in European populations. However, these findings have not been confirmed in Chinese populations. We systematically genotyped rs8044769 and evaluated the association between the genetic variants and OA risk in a case-controlled study including 196 OA cases and 442 controls in a northern Chinese population. Genotyping was performed using the Sequenom MassARRAY iPLEX platform.Objectives
Methods
We prospectively followed 171 patients who underwent
bilateral unicompartmental knee replacement (UKR) over a period
of two years. Of these, 124 (72.5%) underwent a simultaneous bilateral
procedure and 47 (27.5%) underwent a staged procedure. The mean
cumulative operating time and length of hospital stay were both
shorter in the simultaneous group, by 22.5 minutes (p <
0.001)
and three days (p <
0.001), respectively. The mean reduction
in haemoglobin level post-operatively was greater by 0.15 g/dl in
the simultaneous group (p = 0.023), but this did not translate into
a significant increase in the number of patients requiring blood
transfusion (p = 1.000). The mean hospital cost was lower by $8892
in the simultaneous group (p <
0.001). There was no significant
difference in the rate of complications between the groups, and
at two-year follow-up there was no difference in the outcomes between
the two groups. We conclude that simultaneous bilateral UKR can be recommended
as an appropriate treatment for patients with bilateral medial compartment
osteoarthritis of the knee. Cite this article:
