Details
| Original language | English |
|---|---|
| Article number | e1887 |
| Journal | International Journal of Medical Robotics and Computer Assisted Surgery |
| Volume | 14 |
| Issue number | 2 |
| Early online date | 15 Jan 2018 |
| Publication status | Published - 5 Mar 2018 |
Abstract
Background: The implantation of the acetabular cup essentially determines the clinical outcome of total hip arthroplasty. To address this issue, the aim of this study was to build patient-specific instruments (PSIs) with various reference surfaces, followed by in vitro investigations to examine the inter- and intra-operator reliability as well as the overall precision of these patient-specific templates. Methods: Seven human hemi-pelvis specimens were used for this study. After a CT scan, PSIs with different imprint heights were created. The overall precision of the templates and the inter- and intra-operator reliabilities were calculated. Results: Strong differences in precision between the PSI designs could be observed. The desired orientation of the acetabular cup could be adjusted with a precision of up to 1.55°. Conclusion: Based on our results, we believe that the application of the PSI-based acetabular cup positioning in total hip arthroplasty procedures can potentially increase the precision of cup placement.
Keywords
- 3D imaging, additive manufacturing, Ct, hip arthroplasty, orthopaedic
ASJC Scopus subject areas
- Medicine(all)
- Surgery
- Biochemistry, Genetics and Molecular Biology(all)
- Biophysics
- Computer Science(all)
- Computer Science Applications
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In: International Journal of Medical Robotics and Computer Assisted Surgery, Vol. 14, No. 2, e1887, 05.03.2018.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Inter- and intra-operator reliability in patient-specific template positioning for total hip arthroplasty
T2 - A cadaver study
AU - Krämer, Manuel
AU - Kahrs, Lüder A.
AU - Friese, Karl Ingo
AU - von Falck, Christian
AU - Hurschler, Christof
N1 - Publisher Copyright: Copyright © 2018 John Wiley & Sons, Ltd.
PY - 2018/3/5
Y1 - 2018/3/5
N2 - Background: The implantation of the acetabular cup essentially determines the clinical outcome of total hip arthroplasty. To address this issue, the aim of this study was to build patient-specific instruments (PSIs) with various reference surfaces, followed by in vitro investigations to examine the inter- and intra-operator reliability as well as the overall precision of these patient-specific templates. Methods: Seven human hemi-pelvis specimens were used for this study. After a CT scan, PSIs with different imprint heights were created. The overall precision of the templates and the inter- and intra-operator reliabilities were calculated. Results: Strong differences in precision between the PSI designs could be observed. The desired orientation of the acetabular cup could be adjusted with a precision of up to 1.55°. Conclusion: Based on our results, we believe that the application of the PSI-based acetabular cup positioning in total hip arthroplasty procedures can potentially increase the precision of cup placement.
AB - Background: The implantation of the acetabular cup essentially determines the clinical outcome of total hip arthroplasty. To address this issue, the aim of this study was to build patient-specific instruments (PSIs) with various reference surfaces, followed by in vitro investigations to examine the inter- and intra-operator reliability as well as the overall precision of these patient-specific templates. Methods: Seven human hemi-pelvis specimens were used for this study. After a CT scan, PSIs with different imprint heights were created. The overall precision of the templates and the inter- and intra-operator reliabilities were calculated. Results: Strong differences in precision between the PSI designs could be observed. The desired orientation of the acetabular cup could be adjusted with a precision of up to 1.55°. Conclusion: Based on our results, we believe that the application of the PSI-based acetabular cup positioning in total hip arthroplasty procedures can potentially increase the precision of cup placement.
KW - 3D imaging
KW - additive manufacturing
KW - Ct
KW - hip arthroplasty
KW - orthopaedic
UR - http://www.scopus.com/inward/record.url?scp=85040707419&partnerID=8YFLogxK
U2 - 10.1002/rcs.1887
DO - 10.1002/rcs.1887
M3 - Article
C2 - 29336121
AN - SCOPUS:85040707419
VL - 14
JO - International Journal of Medical Robotics and Computer Assisted Surgery
JF - International Journal of Medical Robotics and Computer Assisted Surgery
SN - 1478-5951
IS - 2
M1 - e1887
ER -