Journal article
Primary stability of a proximally coated and tapered stem
- Abstract:
-
Aims
The aim of this prospective cohort study was to evaluate the early migration of the TriFit cementless proximally coated tapered femoral stem using radiostereometric analysis (RSA).Methods
A total of 21 patients (eight men and 13 women) undergoing primary total hip arthroplasty (THA) for osteoarthritis of the hip were recruited in this study and followed up for two years. Two patients were lost to follow-up. All patients received a TriFit stem and Trinity Cup with a vitamin E-infused highly cross-linked ultra-high molecular weight polyethylene liner. Radiographs for RSA were taken postoperatively and then at three, 12, and 24 months. Oxford Hip Score (OHS), EuroQol five-dimension questionnaire (EQ-5D), and adverse events were reported.Results
At two years, the mean subsidence of the head and tip for the TriFit stem was 0.38 mm (SD 0.32) and 0.52 mm (SD 0.36), respectively. The total migration of the head and tip was 0.55 mm (SD 0.32) and 0.71 mm (SD 0.38), respectively. There were no statistically significant differences between the three to 12 months' migration (p = 0.105) and 12 to 24 months' migration (p = 0.694). The OHS and EQ-5D showed significant improvements at two years.Conclusion
The results of this study suggest that the TriFit femoral stem achieves initial stability and is likely to be stable in the mid and long term. A long-term outcome study is required to assess late mechanisms of failure and the effects of bone mineral density (BMD) related changes.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
Actions
Access Document
- Files:
-
-
(Preview, Accepted manuscript, 576.7KB, Terms of use)
-
- Publisher copy:
- 10.1302/0301-620x.103b4.bjj-2020-1648.r1
Authors
- Publisher:
- British Editorial Society of Bone and Joint Surgery
- Journal:
- Bone and Joint Journal More from this journal
- Volume:
- 103-B
- Issue:
- 4
- Pages:
- 644-649
- Publication date:
- 2021-04-01
- Acceptance date:
- 2021-04-12
- DOI:
- EISSN:
-
2049-4408
- ISSN:
-
2049-4394
- Pmid:
-
33789489
- Language:
-
English
- Keywords:
- Pubs id:
-
1170207
- Local pid:
-
pubs:1170207
- Deposit date:
-
2021-06-09
Terms of use
- Copyright holder:
- British Editorial Society of Bone & Joint Surgery
- Copyright date:
- 2021
- Rights statement:
- © 2021 The British Editorial Society of Bone & Joint Surgery.
- Notes:
-
This is the accepted manuscript version of the article. The final version is available online from the British Editorial Society of Bone and Joint Surgery at: https://doi.org/10.1302/0301-620X.103B4.BJJ-2020-1648.R1
An erratum for this article is available online at: https://doi.org/10.1302/0301-620X.103B6.BJJ-2021-00016
If you are the owner of this record, you can report an update to it here: Report update to this record