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Patient specific surgical guide improve the accuracy of acetabular component placement in total hip arthroplasty with dysplastic acetabulum

6 pagesPublished: October 27, 2019

Abstract

To investigate the accuracy of a novel 3D CT scan-based preoperative planning software linked to patient-specific instrumentation (PSI) for placing acetabular components planning in patients with acetabular dysplasia undergoing total hip arthroplasty (THA). A total of 30 consecutive patients were prospectively enrolled and the accuracy of placement of the acetabular component was measured using post- operative CT scans. There was good reproducibility of preoperative and postoperative position of reconstructed rotation center. The mean absolute deviation from the planned inclination and anteversion was 6.2° and 4.8°, respectively. In 90% of cases the planned target of +/-5° was achieved for both inclination and anteversion. And 95% of cases of planned target of +/-3mm were achieved for vertical height of rotation center. Accurate placement of the acetabular component can be achieved using patient-specific guides and is superior to free hand techniques.

Keyphrases: 3D printing, dysplasia acetabulum, Patient Specific Instrumentation, 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 422--427

Links:
BibTeX entry
@inproceedings{CAOS2019:Patient_specific_surgical_guide,
  author    = {Peihui Wu and Weiming Liao and Yan Kang},
  title     = {Patient specific surgical guide improve the  accuracy of acetabular component placement in  total hip arthroplasty with dysplastic acetabulum},
  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     = {422--427},
  year      = {2019},
  publisher = {EasyChair},
  bibsource = {EasyChair, https://easychair.org},
  issn      = {2398-5305},
  url       = {https://easychair.org/publications/paper/4hg7},
  doi       = {10.29007/frjz}}
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