No adverse effects of submelt-annealed highly crosslinked polyethylene in cemented cups

Figures & data

Table 1. Precision of wear, translation, and rotation

Axis	Translation (mm)	Rotation (°)	Wear
x	0.30	0.47
y	0.39	0.49	0.09
z	0.19	0.22
3D			0.31

Figure 1. Proximal penetration/wear for the individual patients (colored lines) and the mean (black line) with 95% CI (whiskers).

Figure 2. 3-dimensional penetration/wear for the individual patients (colored lines) and the mean (black line) with 95% CI (whiskers).

Figure 3. Mean total migration (black line) with 95% CI (whiskers) and mean translation/rotation in each plane for all cups up to 10 years. The cups were stable for translations, but we saw an increase in inclination after 7 years. In accordance with this, 3D motion increased after 7 years (black line). The change was not statistically significant.

Table 2. Clinical data for all patients with clinical outcome (HHS, UCLA score, and individual perception of activity level). Patients 3 and 10 were excluded from the 10-year follow-up

A	B	C	D	E	F	G	H	I	J
1	male	69	Stroke x 3	70	51	44	76	3	low
2	female	67	no	70	49	44	91	6	low
3	male	89	Died		49
4	male	66	no	62	54	44	100	8	normal
5	female	65	no	60	64	44	100	8	high
6	female	64	no	65	43	44	100	7	high
7	male	78	no	75	54	44	93	6	normal
8	female	70	no	87	51	44	98	7	normal
9	male	86	no	90	63	44	95	8	normal
10	male	59	Alcohol-related disease		28
Total				72	50	44	96	6.3
(SD)				(11)	(10)		(12 )	(1.6)

A Patient no.

B Sex

C Age at follow-up

D Complication

E Weight (10 y)

F Cup inclination

G Pain (HHS)

H HHS

I UCLA

J Activity perception