In:
Archives of Orthopaedic and Trauma Surgery, Springer Science and Business Media LLC, Vol. 142, No. 8 ( 2022-08), p. 2075-2082
Abstract:
Uncemented stem migration analysis by EBRA-FCA (Einzel-Bild-Roentgen Analyse, Femoral Component Analyse) has been seen to be a good predictive indicator for early implant failure. In this study, we investigated the migration behavior of a cementless metaphyseal-anchored press-fit stem after 4-year follow-up. Methods Applying a retrospective study design, we reviewed all consecutive patients who between 2012 and 2017 received a cementless Accolade II press-fit stem at our Department. We reviewed medical histories and performed radiological measurements using EBRA-FCA software. EBRA-FCA measurements and statistical investigations were performed by two independent investigators. Results A total of 102 stems in 91 patients (female 60; male 31) fulfilled our inclusion criteria. Mean age at surgery was 66.2 (range 24.3–92.6) years. EBRA migration analysis showed a mean subsidence of 1.4 mm (range 0.0–12.0) at final follow-up. The angle between stem and femur axis was 0.5° (range 0.0°–2.8°) after 48 months. No correlations between gender or Dorr types and subsidence were found ( p 〉 0.05). A body mass index 〉 30 kg/m 2 showed a significant increase in stem subsidence within the first 6 ( p = 0.0258) and 12 months ( p = 0.0466) postoperative. Conclusions Migration pattern of the metaphyseal-anchored stem and a low subsidence rate at final follow-up may predict a good long-term clinical result. Trial registration Number: 20181024-1875.
Type of Medium:
Online Resource
ISSN:
1434-3916
DOI:
10.1007/s00402-021-04068-8
Language:
English
Publisher:
Springer Science and Business Media LLC
Publication Date:
2022
detail.hit.zdb_id:
1458452-9
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