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Featured researches published by Matthias Winter.


Journal of Shoulder and Elbow Surgery | 2016

Clinical and radiologic outcomes of pyrocarbon radial head prosthesis: midterm results

Marc-Olivier Gauci; Matthias Winter; Christian Dumontier; Nicolas Bronsard; Yves Allieu

BACKGROUND The modular pyrocarbon (MoPyC) radial head prosthesis (Tornier, Saint-Ismier, France) is a monoblock modular radial head prosthesis. This study assessed midterm outcomes after implantation of the prosthesis. MATERIALS A retrospective study was conducted of a consecutive cohort of 65 patients who underwent radial head replacement with the MoPyC prosthesis from January 2006 to April 2013. Indications were fractures, early or late failures from orthopedic or fixation treatments, and revisions after another implant. Patients were observed for >2 years for range of motion, pain, and stability; function by the Mayo Elbow Performance Score (total score, 100) and grip strength were assessed. Quality of stem implantation, bone resorption around the neck, and periprosthetic lucency were noted and quantified on radiographs. Capitellum shape and density as well as humeroulnar aspect (river delta sign) were evaluated. Complications and revision procedures were noted. RESULTS We evaluated 52 of 65 patients (mean follow-up, 46 ± 20 months; range, 24-108). The Mayo Elbow Performance Score was 96 ± 7; pain score, 42 ± 7/45; and motion score, 18 ± 2/20. Function and stability were excellent. Radiology revealed 92% of patients with cortical resorption around the neck without mechanical failure. Bone resorption was mostly anterior and lateral; it resolved within the first year and thereafter was stable. Eight patients underwent revision surgery for stiffness. No implant failures were noted. CONCLUSION Results of the MoPyC radial head prosthesis appear to be satisfactory. Bone resorption around the neck (stress shielding) is frequent and stable after 1 year and does not impair stem fixation. The MoPyC prosthesis appears to be a reliable solution for replacing the radial head.


Revue De Chirurgie Orthopedique Et Reparatrice De L Appareil Moteur | 2005

Kyste hydatique de la diaphyse fémorale traité par l'association chirurgie, sérum hypertonique et albendazole.

Matthias Winter; N. Jacquot; Thierry Balaguer; F. De Peretti

We report a case of pathological fracture of the femoral shaft in a patient presenting a diaphyseal hydatid cyst. Surgical treatment consisted in wide resection followed by washout using a 20% hypertonic saline solution and nail plate fixation. Albendazole was given as adjuvant treatment. Postoperatively, the patient developed rhabdomyolysis with local superinfected necrosis which required early revision to remove the material. At twenty-two months, the local and general course was satisfactory. The pathological fracture healed and no secondary localization could be identified. Echinococcosis serology remained negative. The surgery-hypertonic solution-albendazole combination appears to be an attractive therapeutic solution for bone hydatid disease.


Revue De Chirurgie Orthopedique Et Reparatrice De L Appareil Moteur | 2007

144 Prise en charge standardisée des luxations du coude associées à une fracture non reconstructible de la tête radiale

Matthias Winter; Christopher Chuinard; Cédric Pelegri; Jean-Pierre Pequignot; Fernand De Peretti

Introduction L’objectif etait d’apporter les resultats d’une technique chirurgicale de reconstruction et de stabilisation articulaire dans les luxations posterieures du coude avec fracture non reconstructible de la tete radiale associee ou non a une fracture de la pointe coronoidienne. La mobilisation precoce semble etre le gage d’un bon resultat fonctionnel a condition d’avoir une stabilite articulaire peroperatoire. Patients De juin 2004 a novembre 2006, 14 patients (10 hommes, 4 femmes) presentant une luxation du coude avec fracture non reconstructible de la tete radiale associee ou non a une fracture de la pointe coronoidienne ont beneficie du meme protocole chirurgical. Les fractures de l’apophyse coronoide concernant plus que la pointe de celle-ci n’ont pas ete incluses. L’âge moyen etait de 35 ans. Le recul moyen etait de 12 mois. Methodes Par voie d’abord laterale et apres resection de la tete radiale comminutive, une fixation capsulaire anterieure par ancres resorbables etait pratiquee afin de restaurer la stabilite sagittale. Lorsqu’il existait une fracture de la pointe coronoidienne, celle-ci etait resequee. Puis, un remplacement de la tete radiale etait realise afin de restaurer la stabilite frontale. La fermeture de la voie d’abord laterale etait associee a une reinsertion des epicondyliens lateraux et de l’appareil ligamentaire collateral lateral. Tous les patients ont ete operes sous anesthesie loco regionale et ont beneficies d’un catheter d’analgesie pour la periode postoperatoire. Le protocole de reeducation etait standardise. Les 30 derniers degres de supination et d’extension etaient interdits durant les 3 premieres semaines. La supination etait travaillee en flexion, l’extension etait travaillee en pronation. Resultats Dans tous les cas, la stabilite articulaire peroperatoire a permis d’initier la reeducation en actif des le lendemain de l’intervention. Aucune mesure associee n’a ete necessaire. Un patient a ete reopere precocement pour correction d’une implantation haute de la prothese. Au dernier recul, la mobilite moyenne etait de 129° en flexion, -9° en extension, 72° en pronation et 67,5° en supination. La force de poigne etait de 78 % comparee au cote oppose. Le score fonctionnel de la Mayo Clinic etait de 86/100 en moyenne. Discussion La fixation capsulaire anterieure par voie laterale semble etre une solution efficace et reproductible pour la stabilisation articulaire en association avec le remplacement prothetique de la tete radiale dans les luxations posterieures et posterolaterales du coude avec fracture non reconstructible de la tete radiale associee ou non a une fracture de la pointe coronoidienne.


Revue De Chirurgie Orthopedique Et Reparatrice De L Appareil Moteur | 2008

Ostéosynthèse percutanée des fractures lombaires et thoracolombaires non neurologiques : technique chirurgicale et résultats préliminaires

Cédric Pelegri; A. Benchikh El Fegoun; Matthias Winter; Nicolas Brassart; Nicolas Bronsard; I. Hovorka; F. De Peretti


Chirurgie De La Main | 2009

Surgical management of elbow dislocation associated with non-reparable fractures of the radial head.

Matthias Winter; Christopher Chuinard; A. Cikes; Cédric Pelegri; Nicolas Bronsard; F. de Peretti


European Journal of Orthopaedic Surgery and Traumatology | 2006

Radial head replacement with a pyrocarbon head prosthesis: preliminary results of a multicentric prospective study

Yves Allieu; Matthias Winter; Jean-Pierre Pequignot; Philippe de Mourgues


European Journal of Orthopaedic Surgery and Traumatology | 2008

Acute bipolar radial head prosthesis disassembling

Matthias Winter; Cédric Pelegri; Thierry Balaguer; A. Nebunescu; F. de Peretti


/data/revues/00351040/AN_00910006/564/ | 2008

Iconography : Hydatid disease of the femoral shaft treated with surgery and hypertonic solution wash-out combined with albendazole

Matthias Winter; N. Jacquot; Thierry Balaguer; F De Peretti


Burns | 2008

Vascularized transfer of the whole flexor apparatus from a finger to another: the use of the spare-parts concept applied to a case of electrical burn.

Thierry Balaguer; Victor Médard de Chardon; Matthias Winter; Elisa Lebreton


Revue de Chirurgie Orthopédique et Traumatologique | 2017

Réinsertion du biceps distal par double abord et mobilisation immédiate : étude prospective sur 74 patients

Olivier Gastaud; Hugo Barret; Matthias Winter; Marc-Olivier Gauci

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Thierry Balaguer

University of Nice Sophia Antipolis

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Nicolas Bronsard

University of Nice Sophia Antipolis

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Christopher Chuinard

University of Nice Sophia Antipolis

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Fernand de Peretti

University of Nice Sophia Antipolis

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Marc-Olivier Gauci

University of Nice Sophia Antipolis

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Nicolas Brassart

University of Nice Sophia Antipolis

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F. de Peretti

University of Nice Sophia Antipolis

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I. Hovorka

University of Nice Sophia Antipolis

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Yves Allieu

University of Montpellier

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