Retrospective Study
Copyright ©The Author(s) 2021.
World J Orthop. Oct 18, 2021; 12(10): 768-780
Published online Oct 18, 2021. doi: 10.5312/wjo.v12.i10.768
Table 1 Patients with monolithic total hip arthroplasty
Group A





Patient
Age
Cr serum (μg/L)
Cr urine (μg/L)
Co serum (μg/L)
Co urine (μg/L)
1580.530.693.96
2630.14000.76
3690.922.713.2214.53
4760.82.1411.134.9
5770.070.110.10.1
665no1.485.0314.9
7710.10.40.820.2
8740.080.610.732.1
9750.51.134.39.6
10780.772.9410.6527.5
11792.054.367.9217.4
12750.71.74.69.4
13650.372.37.8426
14751.143.866.3824.2
15700.10.10.10.1
16690.31.251.777.1
17720.340.040.10
18710.761.072.069.3
19740.10.090.670.1
20650.10.221.343.9
21640.10.520.340.2
22721.873.697.2512.38
23780.11.022.4110.7
Mean71.080.54 1.413.5910.06
ST.DEV0.561.333.4610.19
Table 2 Patients with modular/ceramic head total hip harthroplasty
Group B





Patient
Age
Cr serum (μg/L)
Cr urine (μg/L)
Co serum (μg/L)
Co urine (μg/L)
24681.563.94.1919.2
25710.12.342.0921.15
26690.381.592.315.2
27700.671.910.610.2
28712.257.525.617.7
29750.772.366.3319.5
30550.441.553.7619.9
31740.531.93.423.9
32760.551.942.9529.4
33740.180.241.834.7
34690.111.540.850.2
35810.21.281.792.1
36780.50.493.9312.5
37650.383.891.4412.4
38741.032.596.2826.4
39790.733.192.554.7
40720.351.571.9316
41730.240.782.195.3
42551.131.971.937.2
43710.11.410.4627.2
44771.963.483.6324.4
Mean71.280.672.343.0514.42
ST.DEV0.601.661.769.18
Table 3 Patients with modular/metallic head total hip arthroplasty
Group C





Patient
Age
Cr serum (μg/L)
Cr urine (μg/L)
Co serum (μg/L)
Co urine (μg/L)
45841.7847.0227.7
46730.94.899.828.9
47672.198.45.119.1
48730.272.564.4324.9
49691.265.048.5640.1
50680.260.83.0115
51730.323.183.218.2
52740.11.962.73.5
53620.842.963.512.3
54790.813.274.4519.7
55710.552.723.8618.6
56782.51.95.2214.8
57730.841.990.467.5
58591.313.84.7725.3
59750.192.994.0322.5
60590.390.880.767.89
61740.93.54.5624.7
62520.550.985.5519.8
63640.72.21414.5
64850.597.195.7241.6
65721.944.697.1441.9
66770.151.942.1716.1
67710.11.581.337.9
68721.43.578.8435.4
69851.242.0713.7860.2
70322.651.777.0316.7
71791.273.282.0918.2
72790.841.74.5217
73740.963.8915.4736.8
74600.141.054.9411.16
75790.492.4116
76780.751.57.2218
Mean70.930.912.955.2921.73
ST.DEV0.691.753.4112.64
Table 4 Localization of osteolysis in peri-prosthetic field

Group A
Group B
Group C
Site of osteolysis
Gruen zone 7224
Gruen zone 12612
DeLee zone 1 and 2533
Table 5 For every group mean values of blood and urinal concentration of Chrom and Cobalt are related to cases of osteolysis

Cr Serum (μg/L)
Cr urine (μg/L)
Co serum (μg/L)
Co urine (μg/L)
Cases of Gr. 2 osteolysis
Cases of Gr. 3 osteolysis
Group 10.541.413.5910.0620
Group 20.672.243.0514.4270
Group 30.912.955.2921.7393