Periacetabular osteotomy through the pararectus approach: technical feasibility and control of fragment mobility by a validated surgical navigation system in a cadaver experiment

Liu, Li; Zheng, Guoyan; Bastian, Johannes Dominik; Keel, Marius Johann Baptist; Nolte, Lutz-Peter; Siebenrock, Klaus-Arno; Ecker, Timo Michael (2016). Periacetabular osteotomy through the pararectus approach: technical feasibility and control of fragment mobility by a validated surgical navigation system in a cadaver experiment. International orthopaedics, 40(7), pp. 1389-1396. Springer 10.1007/s00264-015-2892-6

[img] Text
art%3A10.1007%2Fs00264-015-2892-6.pdf - Published Version
Restricted to registered users only
Available under License Publisher holds Copyright.

Download (9MB) | Request a copy

PURPOSE The pararectus approach has been validated for managing acetabular fractures. We hypothesised it might be an alternative approach for performing periacetabular osteotomy (PAO). METHODS Using four cadaver specimens, we randomly performed PAO through either the pararectus or a modified Smith-Petersen (SP) approach. We assessed technical feasibility and safety. Furthermore, we controlled fragment mobility using a surgical navigation system and compared mobility between approaches. The navigation system's accuracy was tested by cross-examination with validated preoperative planning software. RESULTS The pararectus approach is technically feasible, allowing for adequate exposure, safe osteotomies and excellent control of structures at risk. Fragment mobility is equal to that achieved through the SP approach. Validation of these measurements yielded a mean difference of less <1 mm without statistical significance. CONCLUSION Experimental data suggests the pararectus approach might be an alternative approach for performing PAO. Clinical validation is necessary to confirm these promising preliminary results.

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 Orthopaedic, Plastic and Hand Surgery (DOPH) > Clinic of Orthopaedic Surgery

UniBE Contributor:

Liu, Li; Zheng, Guoyan; Bastian, Johannes; Keel, Marius; Nolte, Lutz-Peter; Siebenrock, Klaus-Arno and Ecker, Timo

Subjects:

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

ISSN:

0341-2695

Publisher:

Springer

Language:

English

Submitter:

Fabian Röthlisberger

Date Deposited:

15 Mar 2016 12:33

Last Modified:

27 Jun 2016 01:30

Publisher DOI:

10.1007/s00264-015-2892-6

PubMed ID:

26162984

BORIS DOI:

10.7892/boris.75693

URI:

https://boris.unibe.ch/id/eprint/75693

Actions (login required)

Edit item Edit item
Provide Feedback