📇 Rhumatologue · HAGUENAU CEDEX · (67) · Hospitalier
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2 raisons identifiées
Praticien-chercheur
6 articles scientifiques publiés — formation continue solide
Délais de RDV courts dans la région
141.9 rhumatos / 100 000 hab. — département bien doté
✨ Génération du profil synthétique IA en cours…
CENTRE HOSPITALIER DE HAGUENAU
64 AV DU PROFESSEUR RENE LERICHE BP 40252, 67504 HAGUENAU CEDEX
Secteur de conventionnement non disponible (médecin hospitalier ou non présent dans l'Annuaire santé CNAM des libéraux conventionnés).
Données ANS publiques (Licence Ouverte 2.0) · Enrichissements MonRhumato 100 % opt-in · Toute personne référencée peut demander la suppression ou la rectification.
Lien Doctolib = recherche Google site:doctolib.fr (le 1er résultat est presque toujours le profil correct s'il existe).
Frontiers in immunology · 2018
Bone & joint research · 2016
ObjectivesCement augmentation of pedicle screws could be used to improve screw stability, especially in osteoporotic vertebrae. However, little is known concerning the influence of different screw types and amount of cement applied. Therefore, the aim of this biomechanical in vitro study was to evaluate the effect of cement augmentation on the screw pull-out force in osteoporotic vertebrae, comparing different pedicle screws (solid and fenestrated) and cement volumes (0 mL, 1 mL or 3 mL).Materials and MethodsA total of 54 osteoporotic human cadaver thoracic and lumbar vertebrae were instrumented with pedicle screws (uncemented, solid cemented or fenestrated cemented) and augmented with high-viscosity PMMA cement (0 mL, 1 mL or 3 mL). The insertion torque and bone mineral density were determined. Radiographs and CT scans were undertaken to evaluate cement distribution and cement leakage. Pull-out testing was performed with a material testing machine to measure failure load and stiffness. The paired t-test was used to compare the two screws within each vertebra.ResultsMean failure load was significantly greater for fenestrated cemented screws (+622 N; p ⩽ 0.001) and solid cemented screws (+460 N; p ⩽ 0.001) than for uncemented screws. There was no significant difference between the solid and fenestrated cemented screws (p = 0.5). In the lower thoracic vertebrae, 1 mL cement was enough to significantly increase failure load, while 3 mL led to further significant improvement in the upper thoracic, lower thoracic and lumbar regions.ConclusionConventional, solid pedicle screws augmented with high-viscosity cement provided comparable screw stability in pull-out testing to that of sophisticated and more expensive fenestrated screws. In terms of cement volume, we recommend the use of at least 1 mL in the thoracic and 3 mL in the lumbar spine. Cite this article: C. I. Leichtle, A. Lorenz, S. Rothstock, J. Happel, F. Walter, T. Shiozawa, U. G. Leichtle. Pull-out strength of cemented solid versus fenestrated pedicle screws in osteoporotic vertebrae. Bone Joint Res 2016;5:419–426.
Journal of biomechanics · 2013
Source PubMed · Recherche par auteur (homonymes possibles, vérifier l'affiliation).
Frontiers in immunology · 2018 · Journal Article
Bartsch YC, Rahmöller J, Mertes MMM, Eiglmeier S, et al.
Bone & joint research · 2016 · Journal Article
Leichtle CI, Lorenz A, Rothstock S, Happel J, et al.
Biomedical engineering online · 2014 · Journal Article
Bobrowitsch E, Lorenz A, Wülker N, Walter C
Journal of biomechanics · 2013 · Journal Article
Lorenz A, Rothstock S, Bobrowitsch E, Beck A, et al.
Journal of medical Internet research · 2021 · Journal Article
Biebl JT, Rykala M, Strobel M, Kaur Bollinger P, et al.
Patient education and counseling · 2025 · Journal Article
Dittmer K, Vitinius F, Hamm I, Däbritz T, et al.
Source : DataCite — DOIs pour datasets, logiciels, protocoles, registres patient. Hors articles (déjà couverts).