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21.05.2018 | Original Paper

Clinical application of a minimally invasive cement-augmentable Schanz screw rod system to treat pelvic ring fractures

verfasst von: Paul Schmitz, Florian Baumann, Yves P. Acklin, Boyko Gueorguiev, Michael Nerlich, Stephan Grechenig, Michael Bernd Müller

Erschienen in: International Orthopaedics | Ausgabe 3/2019

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Abstract

Purpose

The purpose of this study is to analyze the results using the USS fracture MIS system (DePuy Synthes) to treat instable pelvic ring fractures. As its outstanding feature, it is the only Schanz screw and rod system at present that combines angular stability, perforation/fenestration of the screws for cement-augmentation, a variable screw length, and a large screw diameter.

Materials and methods

Retrospective investigation of 134 pelvic ring fractures treated in 2012–2013. Twenty-five patients obtained the abovementioned implant. Besides baseline characteristics of the included patients and the surgical procedure, a clinical/radiological follow-up of six months was analyzed.

Results

Dividing the collective into two groups, I high-energy trauma and II fragility fracture of the pelvis, the following results were recorded: group I: ten patients, six male, age 48.4 ± 19.7 years. Mean ISS 41 ± 22.5, fracture classification: AO/OTA type 61 B₁/C₁/C₃ = 1/5/4. Operative treatment: three transiliac internal fixator, seven iliolumbar fixation, one implant was cement-augmented. Group II: 15 patients, 14 female, age 77.5 ± 10.1 years. Fracture classification according to Rommens: FFP_II/_III/_IV = 6/1/8. Operative treatment: eight transiliac internal fixator, seven iliolumbar fixation, 14 implants were cement-augmented. Overall surgical side complications: 16%. Radiological examination: correct positioning of all ilium screws. Follow-up after six month (16 patients): all showed fracture consolidation. One ilium screw was broken close to the connecting clamp.

Conclusion

The investigated Schanz screw rod system is a suitable implant to broaden the established procedures to stabilize dorsal pelvic ring fractures.

Trial registration

The study is registered at the Clinical Trial Registry University of Regensburg (Number Z-2017-0878-3).

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Titel: Clinical application of a minimally invasive cement-augmentable Schanz screw rod system to treat pelvic ring fractures
verfasst von: Paul Schmitz
Florian Baumann
Yves P. Acklin
Boyko Gueorguiev
Michael Nerlich
Stephan Grechenig
Michael Bernd Müller
Publikationsdatum: 21.05.2018
Verlag: Springer Berlin Heidelberg
Erschienen in: International Orthopaedics / Ausgabe 3/2019
Print ISSN: 0341-2695
Elektronische ISSN: 1432-5195
DOI: https://doi.org/10.1007/s00264-018-3988-6

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Clinical application of a minimally invasive cement-augmentable Schanz screw rod system to treat pelvic ring fractures

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Results

Conclusion

Trial registration

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Abstract

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Results

Conclusion

Trial registration

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