Table 1.
Type of study, level of evidence, number of patients initially enrolled and finally evaluated
| Study | Year | Study level | Patients enrolled | Patients evaluated |
|---|---|---|---|---|
| Mehl et al (22) | 2016 | Prospective Controlled II | 27 (1Revision to TKA) | 26 |
| 26 | 26 | |||
| Vaishya et al (26) | 2016 | Prospective non controlled III | 46 (6 lost follow up) | 40 |
| Arun et al (25) | 2015 | Retrospective IV | 30 (2revision and 2 lost follow up) | 26 |
| Schuster et al (24) | 2015 | Prospective non controlled III | 23 | 23 (22 in full examination) |
| Trojani et al (27) | 2014 | Retrospective Comparative III | 34 | 29 |
| Zaffagnini et al (28) | 2013 | Prospective non controlled III | 32 | 32 |