Forskning ved Københavns Universitet - Københavns Universitet


Implant survival after total elbow arthroplasty: a retrospective study of 324 procedures performed from 1980 to 2008

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningfagfællebedømt

BACKGROUND: Total elbow arthroplasty (TEA) is an established treatment for late-stage arthritis of the elbow. Indications have expanded to osteoarthritis and nonunion in distal humeral fractures. Information on implant survival and risk factors for revision is still sparse. The aim of this study was to evaluate implant survival and risk factors for revision of TEAs inserted in patients in the eastern part of Denmark in the period from 1980 until 2008.

MATERIAL AND METHODS: The Danish National Patient Register provided personal identification numbers for patients who underwent TEA procedures from 1980 until 2008. On the basis of a review of medical reports and linkage to the National Patient Register, we calculated revision rates and evaluated potential risk factors for revision, including, age, sex, period, indication for TEA, and implant design.

RESULTS: We evaluated 324 primary TEA procedures in 234 patients at a mean follow-up of 8.7 years (range, 0-27 years). The overall 5-year survival was 90% (95% confidence interval [CI], 88%-94%), and 10-year survival was 81% (95% CI, 76%-86%). TEAs performed with the unlinked design had a relative risk of revision of 1.9 (95% CI, 1.1-3.2) compared with the linked design. Fracture sequelae was associated with a relative risk of revision of 1.9 (95% CI, 1.05-3.45).

CONCLUSIONS: We found acceptable implant survival rates after 5 and 10 years, with a higher revision rate for the unlinked design and primary TEA due to fracture sequelae. Patient-related outcome measures should be included in future studies for further elaboration of the outcomes after TEA.

LEVEL OF EVIDENCE: Level III, Retrospective cohort design, treatment study.

TidsskriftJournal of Shoulder and Elbow Surgery
Udgave nummer6
Sider (fra-til)829–836
Antal sider8
StatusUdgivet - jun. 2014

ID: 138426511