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Ten years results of total hip arthroplasty using CT-based navigation system

3 pagesPublished: October 27, 2019

Abstract

The purpose of the study is to investigate minimum ten years clinical results of primary and revision THA using CT-based navigation. Forty-nine primary THAs and 2 revision THAs were performed on 42 patients and followed for at least 10 years. The mean age at surgery was 58 years and the mean follow up was 130 months. During surgery, navigation was used for acetabular reaming and cup implantation in all cases. We evaluated Japanese Orthopaedic Association (JOA) clinical outcome scores, revision surgery and complications. In one primary THA case, navigation procedure was aborted because of registration failure. This case experienced femoral periprosthetic fracture at 4.5 years and dislocation at 8.5 years postoperatively. In another primary THA case, revision THA was performed because of aseptic loosening of cup at 4.5 years postoperatively. Except these two cases, there were no complications such as fracture, dislocation, infection, nerve palsy, deep vein thrombosis or loosening. Preoperatively, mean JOA clinical score was 44 points. Ten years postoperatively, it was improved to 96 points. When the aborted case is eliminated, there were no dislocations at ten years. The survivorship rate at ten years was 98% when revision surgery for any reason was considered as the end point. In conclusion, ten years clinical results of THA using CT-based navigation system were acceptable.

Keyphrases: CT-based navigation, outcome, total hip arthroplasty

In: Patrick Meere and Ferdinando Rodriguez Y Baena (editors). CAOS 2019. The 19th Annual Meeting of the International Society for Computer Assisted Orthopaedic Surgery, vol 3, pages 275--277

Links:
BibTeX entry
@inproceedings{CAOS2019:Ten_years_results_of,
  author    = {Nobuo Nakamura and Nobuhiko Sugano},
  title     = {Ten years results of total hip arthroplasty using CT-based navigation system},
  booktitle = {CAOS 2019. The 19th Annual Meeting of the International Society for Computer Assisted Orthopaedic Surgery},
  editor    = {Patrick Meere and Ferdinando Rodriguez Y Baena},
  series    = {EPiC Series in Health Sciences},
  volume    = {3},
  pages     = {275--277},
  year      = {2019},
  publisher = {EasyChair},
  bibsource = {EasyChair, https://easychair.org},
  issn      = {2398-5305},
  url       = {https://easychair.org/publications/paper/92nd},
  doi       = {10.29007/ttbw}}
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