A cost-effective surgical navigation solution for periacetabular osteotomy (PAO) surgery.

Pflugi, Silvio; Liu, Li; Ecker, Timo M; Schumann, Steffen; Cullmann, Jennifer; Siebenrock, Klaus; Zheng, Guoyan (2016). A cost-effective surgical navigation solution for periacetabular osteotomy (PAO) surgery. International Journal of Computer Assisted Radiology and Surgery, 11(2), pp. 271-280. Springer 10.1007/s11548-015-1267-1

[img]
Preview
Text
IJCARS_PAO_Sensors_rv_w_figures.pdf - Accepted Version
Available under License Publisher holds Copyright.

Download (882kB) | Preview
[img] Text
art3A10.10072Fs11548-015-1267-1.pdf - Published Version
Restricted to registered users only
Available under License Publisher holds Copyright.

Download (1MB) | Request a copy

PURPOSE To evaluate a low-cost, inertial sensor-based surgical navigation solution for periacetabular osteotomy (PAO) surgery without the line-of-sight impediment. METHODS Two commercial inertial measurement units (IMU, Xsens Technologies, The Netherlands), are attached to a patient's pelvis and to the acetabular fragment, respectively. Registration of the patient with a pre-operatively acquired computer model is done by recording the orientation of the patient's anterior pelvic plane (APP) using one IMU. A custom-designed device is used to record the orientation of the APP in the reference coordinate system of the IMU. After registration, the two sensors are mounted to the patient's pelvis and acetabular fragment, respectively. Once the initial position is recorded, the orientation is measured and displayed on a computer screen. A patient-specific computer model generated from a pre-operatively acquired computed tomography scan is used to visualize the updated orientation of the acetabular fragment. RESULTS Experiments with plastic bones (eight hip joints) performed in an operating room comparing a previously developed optical navigation system with our inertial-based navigation system showed no statistically significant difference on the measurement of acetabular component reorientation. In all eight hip joints the mean absolute difference was below four degrees. CONCLUSION Using two commercially available inertial measurement units we show that it is possible to accurately measure the orientation (inclination and anteversion) of the acetabular fragment during PAO surgery and therefore to successfully eliminate the line-of-sight impediment that optical navigation systems have.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Pre-clinic Human Medicine > Institute for Surgical Technology & Biomechanics ISTB
04 Faculty of Medicine > Department of Radiology, Neuroradiology and Nuclear Medicine (DRNN) > Institute of Diagnostic, Interventional and Paediatric Radiology
04 Faculty of Medicine > Department of Orthopaedic, Plastic and Hand Surgery (DOPH) > Clinic of Orthopaedic Surgery

UniBE Contributor:

Pflugi, Silvio; Liu, Li; Schumann, Steffen; Cullmann, Jennifer; Siebenrock, Klaus-Arno and Zheng, Guoyan

Subjects:

500 Science > 570 Life sciences; biology
600 Technology > 610 Medicine & health

ISSN:

1861-6410

Publisher:

Springer

Language:

English

Submitter:

Fabian Röthlisberger

Date Deposited:

07 Apr 2016 13:09

Last Modified:

01 Mar 2017 02:30

Publisher DOI:

10.1007/s11548-015-1267-1

PubMed ID:

26233621

Uncontrolled Keywords:

Computer-assisted surgery; Inertial measurement unit; Navigation system; PAO surgery

BORIS DOI:

10.7892/boris.77322

URI:

https://boris.unibe.ch/id/eprint/77322

Actions (login required)

Edit item Edit item
Provide Feedback