Table 3 Summarizing the literature review of the spacer-related mechanical complications of two-stage revision of periprosthetic knee infection
Study | Spacer type | Numbers of spacers | Spacer-related mechanical complications | Complication rate (%) |
|---|---|---|---|---|
Haddad et al. [33] | MOP | 45 | Subluxation in 5 Dislocation in 2 Extensor apparatus problems in 4 | 24.4 |
Meek et al. [31] | MOP | 47 | Spacer fracture in 1 | 2.1 |
Hofmann et al. [30] | MOP | 50 | Subluxation in 1 Extensor apparatus problems in 1 | 4.0 |
Pietsch et al. [35] | MOP | 33 | Dislocation in 1 Spacer migration in 1 | 6.1 |
Jämsen et al. [36] | MOP COCH | 24 10 | Spacer loosening in 5 Spacer migration in 5 | 20.8 50.0 |
Hsu et al. [24] | COCM | 21 | Subluxation in 1 | 4.8 |
Villanueva-MartÃnez et al. [29] | COCH | 30 | Spacer fracture in 1 Subluxation in 2 | 10.0 |
Su et al. [23] | COCM | 15 | Spacer migration in 2 | 13.3 |
Ocguder et al. [22] | COCP | 17 | Spacers cracks in 6 | 35.3 |
Shen et al. [7] | COCM | 17 | Spacer fracture in 1 | 5.9 |
Van Thiel et al. [25] | COCM | 60 | Spacer fracture in 1 | 1.7 |
Gooding et al. [34] | MOP | 115 | Spacer migration in 1 Spacer fracture in 3 Dislocation in 2 Extensor apparatus problems in 1 | 6.1 |
Struelens et al. [6] | COCM | 155 | Spacer tilting in 38 Spacer translation in 33 Spacer fracture in 7 Subluxation in 6 Dislocation in 4 | 57.0 |
Lin et al. (current study) | COCM | 32 | Spacer tilting in 1 Extensor apparatus problems in 1 | 6.3 |