| Author | Year | Study Type | Number of Screws | Screws in Safe Zone* |
|---|---|---|---|---|
| Hu | 2013 | Retrospective | 960 | 98.9% |
| Onen | 2014 | Prospective | 136 | 98.5% |
| Kim | 2016 | RCT** | 158 | 99.4% |
| Hyun | 2016 | RCT** | 130 | 100% |
| Fujishiro | 2015 | Cadaveric study | 216 | 100% |
| Zahrawi | Current | Retrospective | 293 | 100% |
| Weighted average | 99.3% | |||