| Source | Code | Name | Case count | Share of cases (%) |
|---|---|---|---|---|
| OPER_IN | OPER_IN_NOM(NGC30) | Secondary implantation of prosthesis in knee joint, special prosthesis | 558 | |
| OPER_IN | OPER_IN_NOM(NGC00) | Exchange of a loose part of prosthesis in knee joint | 468 | |
| OPER_IN | OPER_IN_NOM(NGC20) | Secondary implantation of prosthesis in knee joint, normal prosthesis | 400 | |
| OPER_IN | OPER_IN_NOM(NGC60) | Exchange or addition of patellar part | 349 | |
| OPER_IN | OPER_IN_NOM(NGC99) | Other secondary prosthetic replacement inknee joint, other or unspecified | 210 | |
| OPER_IN | OPER_IN_NOM(NGC40) | Secondary implantation of prosthesis in knee joint with allograft bone transplant | 40 |