Computer assisted planning and navigation of periacetabular osteotomy with range of motion optimization

Liu, Li; Ecker, Timo; Schumann, Steffen; Siebenrock, Klaus-Arno; Nolte, Lutz-Peter; Zheng, Guoyan (2014). Computer assisted planning and navigation of periacetabular osteotomy with range of motion optimization. Lecture notes in computer science, 17(Pt 2), pp. 643-650. Springer 10.1007/978-3-319-10470-6_80

[img] Text
chp%3A10.1007%2F978-3-319-10470-6_80.pdf - Published Version
Restricted to registered users only
Available under License Publisher holds Copyright.

Download (2MB) | Request a copy

Femoroacetabular impingement (FAI) before or after Periacetabular Osteotomy (PAO) is surprisingly frequent and surgeons need to be aware of the risk preoperatively and be able to avoid it intraoperatively. In this paper we present a novel computer assisted planning and navigation system for PAO with impingement analysis and range of motion (ROM) optimization. Our system starts with a fully automatic detection of the acetabular rim, which allows for quantifying the acetabular morphology with parameters such as acetabular version, inclination and femoral head coverage ratio for a computer assisted diagnosis and planning. The planned situation was optimized with impingement simulation by balancing acetabuar coverage with ROM. Intra-operatively navigation was conducted until the optimized planning situation was achieved. Our experimental results demonstrated: 1) The fully automated acetabular rim detection was validated with accuracy 1.1 ± 0.7mm; 2) The optimized PAO planning improved ROM significantly compared to that without ROM optimization; 3) By comparing the pre-operatively planned situation and the intra-operatively achieved situation, sub-degree accuracy was achieved for all directions.

Item Type:

Journal Article (Original Article)


04 Faculty of Medicine > Pre-clinic Human Medicine > Institute for Surgical Technology & Biomechanics ISTB [discontinued]
04 Faculty of Medicine > Department of Orthopaedic, Plastic and Hand Surgery (DOPH) > Clinic of Orthopaedic Surgery

UniBE Contributor:

Ecker, Timo Michael, Schumann, Steffen, Siebenrock, Klaus-Arno, Nolte, Lutz-Peter, Zheng, Guoyan


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








Stefanie Zurbuchen

Date Deposited:

07 Apr 2015 11:40

Last Modified:

02 Mar 2023 23:26

Publisher DOI:


PubMed ID:





Actions (login required)

Edit item Edit item
Provide Feedback