Table 2 Surgical information—all revisions
From: Impact of time to revision total knee arthroplasty on outcomes following aseptic failure
Variable | Early revisions (n = 199) | Late revisions (n = 271) | P-value |
|---|---|---|---|
Type of revision [n (%)]a | – | – | 0.071 |
Full | 95 (47.7) | 158 (58.3) | |
Femoral | 21 (10.6) | 13 (4.8) | |
Tibial | 24 (12.1) | 29 (10.7) | |
Liner | 48 (24.1) | 55 (20.3) | |
Patellar | 11 (5.5) | 15 (5.9) | |
Reason for revision [n (%)]a | – | – | < 0.001* |
Arthrofibrosis/stiffness/ankylosis | 53 (26.6) | 26 (9.6) | |
Aseptic loosening | 52 (26.1) | 124 (45.8) | |
Component malpositioning | 8 (4.0) | 6 (2.2) | |
Extensor mechanism/patellar clunk | 11 (5.5) | 4 (1.5) | |
Periprosthetic fracture | 8 (4.0) | 7 (2.6) | |
Implant failure | 4 (2.0) | 10 (3.7) | |
Instability/dislocation | 57 (28.6) | 71 (26.2) | |
Liner wear | 1 (0.5 | 17 (6.3) | |
Nickel metal allergy | 5 (2.5) | 3 (1.1) | |
Patellofemoral osteoarthritis | 5 (2.5) | 3 (1.1) | |
Osteolysis | 0 (0.0) | 2 (0.7) | |
Surgical time [mean minutes (SD)]b | 103.93 (44.66) | 119.20 (51.94) | 0.001* |