Association between patient survival following reoperation after total hip replacement and the reason for reoperation: an analysis of 9,926 patients in the Swedish Hip Arthroplasty Register

Figures & data

Table 1. Demographics of the study population. Values are mean years (SD) unless otherwise stated

	Aseptic loosening	Dislocation	Periprosthetic fracture	Infection	Other	Unknown
n	3,558	1,782	1,574	2,065	877	60
Age at primary THR	61 (11)	69 (11)	70 (11)	68 (12)	60 (13)	60 (16)
Time to 1st reoperation	8.0 (4.4)	3.2 (4.0)	5.2 (4.4)	1.6 (3.1)	4.1 (4.0)	6.4 (5.3)
Time from 1st to 2nd reoperation	2.0 (2.6)	1.7 (2.9)	1.6 (2.4)	0.6 (1.5)	1.5 (2.2)	1.4 (3.1)
Age at 1st reoperation	70 (11)	73 (11)	76 (12)	70 (11)	65 (12)	67 (16)
Age at 2nd reoperation	69 (11)	73 (11)	73 (13)	69 (11)	67 (13)	69 (14)
Women, n (%)	1,790 (50)	1,045 (59)	884 (56)	869 (42)	478 (55)	40 (57)
Dead, n (%)	566 (16)	818 (46)	711 (45)	645 (31)	136 (16)	10 (14)

p-value < 0.001 for all comparisons.

Figure 1. Relative survival after 1st-time reoperation per indication at the time of the reoperation (truncated at 10 years).

Figure 2. Relative survival (and confidence intervals) after the 2nd-time reoperation per indication at the time of the reoperation (truncated at 10 years).

Figure 3. Median time between the primary THR and the 1st-time reoperation and between 1st- and 2nd-time reoperation for the different indications.