Revision within 1 year

Hip » Survival » Revision within 1 year » By type of revision

TABLE Cumulative 1-year revision percentage of primary total hip arthroplasties by type of revision in the Netherlands in 2014-2018 (n=148,646)

Cumulative 1-year revision percentage
  Competing Risk (95% CI) Kaplan Meier (95% CI)
Any type of revision¹ 1.8 (1.7-1.9) 1.8 (1.7-1.9)
   Major revision² 1.1 (1.0-1.1) 1.1 (1.0-1.1)
   Minor revision³ 0.7 (0.7-0.7) 0.7 (0.7-0.7)

¹ Any type of revision includes minor and major revisions as well as revision procedures that could not be classified as minor or major revision.
² Revision of at least the acetabulum or femur component.
³ Only inlay and/or femoral head exchange (including DAIR procedures).
THA: total hip arthroplasty; CI: confidence interval.

© LROI 2020

In 2014-2018, 1,879 (1.3%) primary THAs were implanted in patients who died within one year after the primary procedure.

Hip » Survival » Revision within 1 year » Overall revision per hospital

FIGURE Funnel plot of proportion of hip revision arthroplasties within one year after a total hip arthroplasty per hospital in the Netherlands in 2014-2018 (n=148,522)

H43afbeelding.png

Please note: The proportions of revisions within 1 year per hospital were adjusted for casemix factors age, gender, ASA score and diagnosis (osteoarthritis versus other).

THA: total hip arthroplasty; CI: confidence interval.

The mean 1-year revision percentage is 1.8 (95% CI: 1.7-1.9 ) in the Netherlands in 2014-2018. Confidence intervals indicate the plausible range of outcome if all hospitals perform equally well.

Hip » Survival » Revision within 1 year » Major revision per hospital

FIGURE Funnel plot of proportion of hip major revision arthroplasties within one year after a total hip arthroplasty per hospital in the Netherlands in 2014-2018 (n=148,522)

H44afbeelding.png

Please note: Major revision is defined as revision of at least acetabulum or femur compenent.\nPlease note: The proportions of revisions within 1 year per hospital were adjusted for casemix factors age, gender, ASA score and diagnosis (osteoarthritis versus other).

THA: total hip arthroplasty; CI: confidence interval.

The mean 1-year revision percentage is 1.2 (95% CI: 1.2-1.2 ) in the Netherlands in 2014-2018. Confidence intervals indicate the plausible range of outcome if all hospitals perform equally well.

Hip » Survival » Revision within 1 year » Reasons for revision by type of revision

TABLE Reasons for revision within one year in patients that underwent a hip revision arthroplasty by type of revision in the Netherlands in 2014-2018

Major revision¹ (n=1,635) Minor revision² (n=1,053) Any type of revision³ (n=2,732)
Reasons for revision Proportion4 (%) Proportion4 (%) Proportion4 (%)
Infection 12.9 67.1 34.1
Dislocation 34.4 18.1 27.6
Peri-prosthetic fracture 30.3 1.8 19.0
Loosening of femur component 20.6 0.5 12.6
Loosening of acetabulum component 10.0 0.4 6.1
Girdlestone situation 2.6 0.1 1.6
Inlay wear 1.3 1.1 1.2
Peri-articular ossification 0.7 0.5 0.6
Symptomatic MoM bearing 0.1 0.0 0.1
Other 10.2 14.3 11.7

¹ Revision of at least the acetabulum or femur component.
² Only inlay and/or femoral head exchange (including DAIR procedures).
³ Any type of revision includes minor and major revisions as well as revision procedures that could not be classified as minor or major revision.
4 One patient may have more than one reason for revision or re-surgery. As such, the total proportion is over 100%.

© LROI 2020