Precision of Cup Positioning Using a Novel Computed Tomography Based Navigation System in Total Hip Arthroplasty
Nemati, Hassan M LU ; Christensson, Albin LU
; Pettersson, Andreas
; Németh, Gunnar
and Flivik, Gunnar
LU
(2024)
In Medicina (Kaunas, Lithuania)
60(10).
- Abstract
Background and Objectives: Navigation systems are designed to enhance surgical precision, improving patient outcomes and reducing the risk of implant misplacement. In this study, we have evaluated a novel orthopedic surgical platform that utilizes CT imaging with AI-based algorithms to automate several critical aspects of total hip arthroplasty. It contains three modules-preoperative planning, navigation during surgery, and follow-up analysis. The primary objective of the current study was to evaluate the precision of the navigation tool in cup placement, i.e., whether the information displayed for navigation correctly reflected the actual position of the implant. Materials and Methods: Surgery outcomes of 15 inter-rater measurements on... (More)
Background and Objectives: Navigation systems are designed to enhance surgical precision, improving patient outcomes and reducing the risk of implant misplacement. In this study, we have evaluated a novel orthopedic surgical platform that utilizes CT imaging with AI-based algorithms to automate several critical aspects of total hip arthroplasty. It contains three modules-preoperative planning, navigation during surgery, and follow-up analysis. The primary objective of the current study was to evaluate the precision of the navigation tool in cup placement, i.e., whether the information displayed for navigation correctly reflected the actual position of the implant. Materials and Methods: Surgery outcomes of 15 inter-rater measurements on human cadavers and 18 surgeries on patients who underwent total hip replacement using the navigation tool were analyzed. Results: In the inter-rater assessment, the mean errors were -0.31 ± 1.42° for anteversion, 1.06 ± 1.73° for inclination, and -0.94 ± 1.76 mm for cup position depth. In patients' surgeries, the mean errors were -0.07 ± 2.72° for anteversion, -0.2 ± 0.86° for inclination, and 0.28 ± 0.78 mm for cup depth. Conclusions: The navigation tool offers intra-operative guidance on notable precision in cup placement, thereby effectively mitigating the risk of cup malpositioning outside the patient-specific safe zone.
(Less)
- author
- Nemati, Hassan M
LU
; Christensson, Albin
LU
; Pettersson, Andreas
; Németh, Gunnar
and Flivik, Gunnar
LU
- organization
- publishing date
- 2024-09-27
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Humans, Arthroplasty, Replacement, Hip/methods, Tomography, X-Ray Computed/methods, Female, Male, Aged, Surgery, Computer-Assisted/methods, Middle Aged, Surgical Navigation Systems, Cadaver, Aged, 80 and over
- in
- Medicina (Kaunas, Lithuania)
- volume
- 60
- issue
- 10
- article number
- 1589
- publisher
- MDPI AG
- external identifiers
-
- scopus:85207678513
- pmid:39459376
- ISSN
- 1648-9144
- DOI
- 10.3390/medicina60101589
- language
- English
- LU publication?
- yes
- id
- 71c64c5a-0a8b-4dc3-9245-66697ef418ad
- date added to LUP
- 2026-08-14 11:16:13
- date last changed
- 2026-08-29 04:57:12
@article{71c64c5a-0a8b-4dc3-9245-66697ef418ad,
abstract = {{<p>Background and Objectives: Navigation systems are designed to enhance surgical precision, improving patient outcomes and reducing the risk of implant misplacement. In this study, we have evaluated a novel orthopedic surgical platform that utilizes CT imaging with AI-based algorithms to automate several critical aspects of total hip arthroplasty. It contains three modules-preoperative planning, navigation during surgery, and follow-up analysis. The primary objective of the current study was to evaluate the precision of the navigation tool in cup placement, i.e., whether the information displayed for navigation correctly reflected the actual position of the implant. Materials and Methods: Surgery outcomes of 15 inter-rater measurements on human cadavers and 18 surgeries on patients who underwent total hip replacement using the navigation tool were analyzed. Results: In the inter-rater assessment, the mean errors were -0.31 ± 1.42° for anteversion, 1.06 ± 1.73° for inclination, and -0.94 ± 1.76 mm for cup position depth. In patients' surgeries, the mean errors were -0.07 ± 2.72° for anteversion, -0.2 ± 0.86° for inclination, and 0.28 ± 0.78 mm for cup depth. Conclusions: The navigation tool offers intra-operative guidance on notable precision in cup placement, thereby effectively mitigating the risk of cup malpositioning outside the patient-specific safe zone.</p>}},
author = {{Nemati, Hassan M and Christensson, Albin and Pettersson, Andreas and Németh, Gunnar and Flivik, Gunnar}},
issn = {{1648-9144}},
keywords = {{Humans; Arthroplasty, Replacement, Hip/methods; Tomography, X-Ray Computed/methods; Female; Male; Aged; Surgery, Computer-Assisted/methods; Middle Aged; Surgical Navigation Systems; Cadaver; Aged, 80 and over}},
language = {{eng}},
month = {{09}},
number = {{10}},
publisher = {{MDPI AG}},
series = {{Medicina (Kaunas, Lithuania)}},
title = {{Precision of Cup Positioning Using a Novel Computed Tomography Based Navigation System in Total Hip Arthroplasty}},
url = {{http://dx.doi.org/10.3390/medicina60101589}},
doi = {{10.3390/medicina60101589}},
volume = {{60}},
year = {{2024}},
}