Universität zu Köln

Wegmann, K., Gick, S., Heidemann, C., Pennig, D., Neiss, W. F., Mueller, L. P., Eysel, P. and Sobottke, R. (2013). Biomechanical evaluation of the primary stability of pedicle screws after augmentation with an innovative bone stabilizing system. Arch. Orthop. Trauma Surg., 133 (11). S. 1493 - 1500. NEW YORK: SPRINGER. ISSN 1434-3916

Full text not available from this repository.

Abstract

In today's aging population, diminished bone quality often affects the outcome of surgical treatment. This occurs especially when surgical implants must be fixed to bone, as it occurs when lumbar fusion is performed with pedicle screws. Besides Polymethylmethacrylate (PMMA) injection, several techniques have been developed to augment pedicle screws. The aim of the current study was to evaluate the primary stability of an innovative system (IlluminOss (TM)) for the augmentation of pedicle screws in an experimental cadaveric setup. IlluminOss (TM) is an innovative technology featuring cement with similar biochemical characteristics to aluminum-free glass-polyalkenoate cement (GPC). IlluminOss (TM) was inserted transpedicularly via a balloon/catheter system in 40 human cadaveric lumbar vertebrae. For comparability, each vertebra was treated bilaterally with pedicle screws, augmented and non-augmented. The maximum failure load during pull out test was documented by a universal material testing machine. The results showed significantly higher failure loads for the augmented pedicle screws (Median 555.0 +/- A 261.0 N, Min. 220.0 N, Max. 1,500.0 N), compared to the native screws (Median 325.0 +/- A 312.1 N, Min. 29.0 N, Max. 1,400.0 N). Based on these data, we conclude the IlluminOss (TM) system can be used to augment primary screw stability regarding axial traction, compared to native screws. The IlluminOss (TM) monomer offers ease of control for use in biological tissues. In contrast to PMMA, no relevant heat is generated during the hardening process and there is no risk of embolism. Further studies are necessary to evaluate the usefulness of the IlluminOss (TM) system in the in vivo augmentation of pedicle screws in the future.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Wegmann, K. UNSPECIFIED UNSPECIFIED UNSPECIFIED Gick, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Heidemann, C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Pennig, D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Neiss, W. F. UNSPECIFIED UNSPECIFIED UNSPECIFIED Mueller, L. P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Eysel, P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Sobottke, R. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-473065
DOI:	10.1007/s00402-013-1842-2
Journal or Publication Title:	Arch. Orthop. Trauma Surg.
Volume:	133
Number:	11
Page Range:	S. 1493 - 1500
Date:	2013
Publisher:	SPRINGER
Place of Publication:	NEW YORK
ISSN:	1434-3916
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language PULLOUT STRENGTH; CEMENT AUGMENTATION; MINERAL DENSITY; OSTEOPOROSIS; FIXATION; COMPLICATION; INJECTION; VIVO Multiple languages Orthopedics; Surgery Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/47306