Globulin and albumin to globulin ratio precisely diagnose periprosthetic joint infection and determine the timing of second-stage reimplantation

Table 2 Comparison of the plasma levels of the markers

Markers	Range	PJI group	AF group	P value
CRP (mg/L)	< 5.00	36.95 ± 48.78	8.02 ± 26.09	< 0.001
ESR (mm/h)	< 30.00	43.27 ± 26.96	14.16 ± 11.51	< 0.001
PLT (× 10⁹/L)	125–350	288.82 ± 97.79	221.83 ± 63.52	< 0.001
MPV (fL)	7.4–11.0	9.86 ± 0.92	10.22 ± 0.97	0.006
PCT (%)	0.09–0.30	0.28 ± 0.08	0.23 ± 0.10	< 0.001
PMR	–	29.91 ± 11.96	22.11 ± 11.26	< 0.001
GLB (g/L)	20–40	33.46 ± 5.84	27.48 ± 5.16	< 0.001
ALB (g/L)	40–55	35.51 ± 5.36	36.71 ± 5.21	0.086
AGR	1.2–2.4	1.06 ± 0.22	1.40 ± 0.27	< 0.001
PLT/AGR	–	290.91 ± 141.43	166.68 ± 66.07	< 0.001

PJI, periprosthetic joint infection; AF, aseptic failure; ESR, erythrocyte sedimentation rate; CRP, C-reactive protein; PLT, platelet count; MPV, mean platelet volume; PCT, plateletcrit; PMR, PLT to MPV ratio; GLB, globulin; AGR, albumin to globulin ratio

ISSN: 1749-799X