Display Settings:


Send to:

Choose Destination
Z Orthop Unfall. 2012 Jun;150(3):324-8. doi: 10.1055/s-0031-1298389. Epub 2012 Apr 19.

[Mid-term outcome after implantation of a pyrocarbon endoprosthesis in patients with degenerative arthritis].

[Article in German]

Author information

  • 1Orthopädie, Universität Regensburg, Bad Abbach. g.heers@asklepios.com



The aim of this study was to make a mid-term evaluation of an unconstrained pyrocarbon prosthesis (Ascension®) in the treatment of idiopathic degenerative arthritis of the proximal interphalangeal joint of the hand.


13 implants (10 patients) were clinically and radiologically studied after a follow-up period of 71 months (range: 48-92 months).


The average ROM was 52° (± 27°STD). A luxation of the components did not occur and all implants are still in-situ. However, X-ray examination was unremarkable in only six fingers. In seven patients significant radiolucent lines (≥ 1 mm) were detected. Three prosthesis demonstrated axial subsidence and in one patient a loosening of the proximal component with axial rotation was observed.


The results of this study show a high complication rate after an average of 6 years after implantation. Radiolucent lines in half of the cases may be explained by a lack of osteointegration of the prosthesis. The average ROM differs significantly from patient to patient, which has to be taken into account when discussing different treatment options.

Georg Thieme Verlag KG Stuttgart · New York.

[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Icon for Georg Thieme Verlag Stuttgart, New York
    Loading ...
    Write to the Help Desk