Table 3.
Descriptive data on 2-stage revision, 1-stage revision, major partial 1-stage exchange (i.e. exchange of stem or cup), and minor partial 1-stage exchange (i.e. exchange of head and/liner) for infected THAs in the period 2002–2009
| Type of revision | No. of revisions (%) | Mean age at revision (years) a | Females % | Mean duration of operation (min) a | Mean interval: operation to revision (years) a |
|---|---|---|---|---|---|
| 2-stage revision | 164 (34%) | 71 (10; 39–87) | 49% | 330 (94; 175–780) b | 3.2 (3.5; 0.1–16.3) |
| 1-stage revision | 86 (18%) | 73 (10; 42–89) | 43% | 168 (63; 70–380) p < 0.001 | 3.7 (3.7; 0.2–14.9) p = 1.00 |
| Major partial exchange | 61 (13%) | 71 (13; 31–89) | 48% | 139 (48; 40–265) p < 0.001 | 3.7 (4.3; 0.0–19.0) p = 1.00 |
| Minor partial exchange | 178 (36%) | 71 (11; 38–89) | 53% | 95 (34; 35–320) p < 0.001 | 0.7 (2.0;0.0–13.1) p < 0.001 |
| Total | 489 (100%) | 71 (10; 38–89) | 50% | 197 (121; 35–780 ) | 2.5 (3.5; 0.0–19.0) |
a Values are mean (SD; min–max)
b The duration of operation for 2-stage revision includes first stage with removal of the implant (179 (64; 45–445)) and second stage with re-implantation (151 (52; 70–450)).