Table 1 Model parameters and premise

Parameter values obtained from the literature

 Utility values

 Postoperative

0.73 ⁽³⁰⁾

0.73 ⁽³⁰⁾

0.6 ⁽³⁾

 Preoperative

0.4 ⁽³⁰⁾

0.4 ⁽³⁰⁾

0.73

Estimated/obtained parameter values

 Disutility value

-0.1

-0.1

-0.2

 Mortality, 1st year after operation

0,63%

0,63%

 Mortality, remaining lifetime

Table B

Table B

Additional file

Additional file

 Cost (NOK) based on DRG

146.135⁽²⁸⁾

146.135⁽²⁸⁾

192.418⁽²⁸⁾

 Implant survival /probability of revision

Table A

Table A

Additional file

Additional file

 Number of revisions

1

1

No re-revision

 Annual added cost* of computer navigation (NOK)

  Alternative 1

216.500

  Alternative 2

433.000