| Authors | Country | Year of publication | Number of patients | Average age | Carcinoma Squamous cell | Refusal of amputation |
| Bah [13] | Guinea Conakry | 2007 | 2 | 39 | 2 | 0 |
| Kara [3] | France | 2007 | 6 | 65.6 | 5 | 0 |
| Odzébé [14] | Congo Brazza | 2010 | 1 | 42 | 1 | 1 |
| Nouri [11] | Morocco | 2012 | 6 | 60.5 | 6 | 1 |
| Sow [9] | Senegal | 2012 | 8 | 51.5 | 8 | 7 |
| Kambou [2] | Burkina Faso | 2015 | 3 | 73.3 | 2 | 2 |
| Mansouri [1] | Tunisia | 2018 | 11 | 64 | 9 | 4 |
| Gueye [5] | Senegal | 1992 | 11 | 55 | 11 | 8 |
| Our study | Chad | 2021 | 8 | 60 | 8 | 7 |