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Ultrasound-based computer navigation of the acetabular component: a feasibility study

Ultrasound-based computer navigation of the acetabular component: a feasibility study
Ultrasound-based computer navigation of the acetabular component: a feasibility study
This feasibility study investigated the accuracy of anterior pelvic reference plane (APP) registration and acetabular cup orientation in two cadavers with different BMIs. Method Five observers each registered the APP five times in the 2 cadavers (BMIs: 32 kg/m² and 25 kg/m²) using an ultrasound-based navigation system. By comparison against the CT-derived reference landmarks, the errors in determining the individual landmarks defining the APP, as well as the resulting errors in the orientation of the APP and the acetabular cup orientation were determined. Results Across all measurements obtained with the ultrasound navigation system, the errors in rotation and version in determining the APP were 0.5° ± 1.0° and ?0.4° ± 2.0°, respectively. The cup abduction and anteversion errors determined from all measurements of the five investigators for both cadavers together were ?0.1° ± 1.0° and ?0.4° ± 2.7°, respectively. The data further demonstrated a high reproducibility of the measurements for the resulting cup adduction and anteversion angle. Conclusion Our preliminary results confirm that ultrasound navigation is a highly accurate tool that allows a reproducible registration of the APP and thereby enables accurate and precise intraoperative determination of the acetabular cup orientation also in patients with increased BMI.
medizin
0936-8051
517-525
Wassilew, Georgi
ff65845c-9c85-454e-8057-a23e3288c6f3
Heller, Markus
3da19d2a-f34d-4ff1-8a34-9b5a7e695829
Hasart, Olaf
e42f42bc-77a2-45c3-a05a-ed2af19f26f2
Perka, Carsten
50eac0cf-e710-45df-a04b-b8af775eace1
Südhoff, Ingrid
53ea8c9b-e3f3-4bc8-808e-38907b6eeb34
Janz, Viktor
279dc6bd-848e-4d83-99b6-d976efe10bdd
Duda, Georg
5863a4f5-b717-4bbb-a093-64277f6dab90
König, Christian
5130c0d7-b085-4459-9cc3-9b9d8ebcf539
Wassilew, Georgi
ff65845c-9c85-454e-8057-a23e3288c6f3
Heller, Markus
3da19d2a-f34d-4ff1-8a34-9b5a7e695829
Hasart, Olaf
e42f42bc-77a2-45c3-a05a-ed2af19f26f2
Perka, Carsten
50eac0cf-e710-45df-a04b-b8af775eace1
Südhoff, Ingrid
53ea8c9b-e3f3-4bc8-808e-38907b6eeb34
Janz, Viktor
279dc6bd-848e-4d83-99b6-d976efe10bdd
Duda, Georg
5863a4f5-b717-4bbb-a093-64277f6dab90
König, Christian
5130c0d7-b085-4459-9cc3-9b9d8ebcf539

Wassilew, Georgi, Heller, Markus, Hasart, Olaf, Perka, Carsten, Südhoff, Ingrid, Janz, Viktor, Duda, Georg and König, Christian (2012) Ultrasound-based computer navigation of the acetabular component: a feasibility study. Archives of Orthopaedic and Trauma Surgery, 132 (4), 517-525. (doi:10.1007/s00402-011-1412-4). (PMID:22042088)

Record type: Article

Abstract

This feasibility study investigated the accuracy of anterior pelvic reference plane (APP) registration and acetabular cup orientation in two cadavers with different BMIs. Method Five observers each registered the APP five times in the 2 cadavers (BMIs: 32 kg/m² and 25 kg/m²) using an ultrasound-based navigation system. By comparison against the CT-derived reference landmarks, the errors in determining the individual landmarks defining the APP, as well as the resulting errors in the orientation of the APP and the acetabular cup orientation were determined. Results Across all measurements obtained with the ultrasound navigation system, the errors in rotation and version in determining the APP were 0.5° ± 1.0° and ?0.4° ± 2.0°, respectively. The cup abduction and anteversion errors determined from all measurements of the five investigators for both cadavers together were ?0.1° ± 1.0° and ?0.4° ± 2.7°, respectively. The data further demonstrated a high reproducibility of the measurements for the resulting cup adduction and anteversion angle. Conclusion Our preliminary results confirm that ultrasound navigation is a highly accurate tool that allows a reproducible registration of the APP and thereby enables accurate and precise intraoperative determination of the acetabular cup orientation also in patients with increased BMI.

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More information

e-pub ahead of print date: 1 November 2011
Published date: April 2012
Keywords: medizin
Organisations: Bioengineering Group

Identifiers

Local EPrints ID: 348541
URI: https://eprints.soton.ac.uk/id/eprint/348541
ISSN: 0936-8051
PURE UUID: 87ce9a4b-bcfd-455a-9dec-97d54bd90948
ORCID for Markus Heller: ORCID iD orcid.org/0000-0002-7879-1135

Catalogue record

Date deposited: 15 Feb 2013 16:51
Last modified: 20 Jul 2019 00:41

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