Table 1.
Summarizing the 13 studies on tip fold-over.
| Study | No. of cases taken for analysis/method | No. of electrode per type/brand |
No. of cases reported tip fold-over | ||
|---|---|---|---|---|---|
| A | B | C | |||
| Timm et al (2018) | 275 (CT) | – | – | 275 (F28, F24, F20, F16) | 0 |
| Sipari et al. (2018) | 23 (CT) | – | MS (23) | – | 2 |
| Gabrielpillai et al. (2018) | 1722 (CT) | No info on brand segments | 7 (CA), 6 (SM), 2(SS) | ||
| Jia et al. (2018) | 65 (Intra-op CT) (Contains 3 electrodes from Oticon) |
CA (12), SM (1), SS (31) | 1J (2), MS (3) | F28 (13) | 1 (SM) |
| Sabban et al. (2018) | 2 (x-ray & CT) | – | MS | – | 2 |
| McJunkin et al. (2018) | 117 (intra-op x-ray) | SM | – | – | 9 |
| Garaycochea et al. (2017) | 1 (Intra-op fluoroscopy) | SM | – | – | 1 (100%) |
| Aschendorff et al. (2017) | 45 (intra-op x-ray/fluoroscopy) | SM | – | – | 2 cases. 1st case corrected in the same surgery. 2nd case underwent revision surgery |
| Zuniga et al. (2017) | 303 (CT) | CA, SS | MS, 1J | – | 3(CA), 1(MS), 1 (SS) and 1(1J) |
| No info on brand segments | |||||
| Fischer et al., 2015 | 63 (CT) | – | – | F24,F28, Std | 1 |
| Dirr et al. (2013) | 215 (Post-op x-ray) | CA, SS | – | Std, M, S, FL, F28 | 2 (F) |
| No info on brand segments | |||||
| Cosetti et al. (2012) | 277 (Intra-op x-ray) | CA | – | – | 5 |
| Grolman et al. (2009) | 72 (Intra-op rotational x-ray) | CA | – | – | 4 |
| Total | 3180 | 50 (43 pre-curved electrode + 7 lateral wall electrode) | |||
| Total, after excluding 3 studies that did not specify number per electrode type | 940 |
Pre-curved (553) Lateral wall (387) |
Pre-curved (26) Lateral wall (3) |
||
CA: Contour Advance; SM: Slim-Modiolar; MS: Mid-Scala; SS: Slim Straight; Std: Standard; M: Medium; S: Compressed; FL: FLEX SOFT, F28: FLEX28; F24: FLEX24; F20: FLEX20; F16: FLEX16.