. 2023 Mar 16;143(10):6021–6031. doi: 10.1007/s00402-023-04824-y

Table 1.

The roughness of 17 retrieved femoral heads measured at different zones given as mean ± standard deviation (min to max value). R_a is the average surface roughness and R_t is the maximum peak-to-valley height

Roughness	Dome	45°	90°	Wear
R_a/µm	0.066 ± 0.056 (0.020–0.236)	0.050 ± 0.048 (0.018–0.212)	0.057 ± 0.035 (0.023–0.138)	0.142 ± 0.102 (0.024–0.405)
R_t/µm	0.759 ± 0.460 (0.168–1.426)	0.584 ± 0.490 (0.160–2.070)	0.610 ± 0.440 (0.217–1.889)	1.470 ± 1.413 (0.252–6.138)

Roughness

Dome

45°

90°

Wear

R_a/µm

0.066 ± 0.056

(0.020–0.236)

0.050 ± 0.048

(0.018–0.212)

0.057 ± 0.035

(0.023–0.138)

0.142 ± 0.102

(0.024–0.405)

R_t/µm

0.759 ± 0.460

(0.168–1.426)

0.584 ± 0.490

(0.160–2.070)

0.610 ± 0.440

(0.217–1.889)

1.470 ± 1.413

(0.252–6.138)