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261 results on '"Poignard, Alexandre"'

39. Long, titanium, cemented stems decreased late periprosthetic fractures and revisions in patients with severe bone loss and previous revision

Author

Philippe, Hernigou, Hernigou, Philippe, Nicolas, Dupuys, Dupuys, Nicolas, Jerome, Delambre, Delambre, Jerome, Isaac, Guissou, Guissou, Isaac, Alexandre, Poignard, Poignard, Alexandre, Jerome, Allain, Allain, Jerome, and Charles Henri, Flouzat Lachaniette

Subjects
musculoskeletal diseases, Male, Reoperation, medicine.medical_specialty, medicine.medical_treatment, Arthroplasty, Replacement, Hip, Periprosthetic, Kaplan-Meier Estimate, Prosthesis Design, Prosthesis, Postoperative Complications, Risk Factors, medicine, Humans, Orthopedics and Sports Medicine, Femur, Aged, Aged, 80 and over, Titanium, business.industry, Proportional hazards model, Femoral canal, Bone Cements, Middle Aged, equipment and supplies, Arthroplasty, Surgery, Prosthesis Failure, medicine.anatomical_structure, Orthopedic surgery, Female, Implant, Hip Prosthesis, Periprosthetic Fractures, business
Abstract

Long, cementless, femoral stem revisions are being used with increasing frequency. There is a relative lack of studies of late fractures after cementless implants, particularly in those patients who had a previous stem revision and are at higher risk for periprosthetic fracture after revision. In this paper, we review risk factors for periprosthetic fracture and revisions of long, cementless, locked stems and report implant survival compared with conventional, cemented, long-stem hip revision arthroplasties in such a group of patients. We used data recorded in our institution. Between 1996 and 2002, 85 cementless femoral stem Aura™ (distal locked stem) prostheses were implanted in 85 patients. Of the 85 revisions with long, cementless stems, 32 were performed after one stem revision, 20 after two stem revisions and 12 after three stem revisions. Between 2003 and 2010, 124 femoral revision stems were performed in 124 patients using an extensively long, titanium femoral stem (Ceraver Osteal™). Kaplan-Meier analysis was used to determine implant survival. The Cox regression model was used to study risk factors for reoperation and revision. The increase in stem length corresponded to a mean of 4.5 ± 2.1 femoral canal diameters and was not significantly different (p = 0.02) between the two groups. Cardiopulmonary distress, intraoperative or postoperative complications were not significantly different between the two groups. There was an overall increased risk of pain, periprosthetic fractures and revision for the cementless prostheses compared with the cemented stems. With regard to thigh pain at the last follow-up, most patients (95 %) reported no pain in the cemented group, while 15 % of the cementless group experienced thigh pain under stress and 6 % had incapacitating pain. In the cemented group, stem re-revision was not required in any hip; there was no periprosthetic fracture; five stems had radiological loosening but in the absence of pain were not revised. Among patients of the cementless group, 21 % sustained failure or revision of their interlocked stem with periprosthetic fractures observed in 15 cases; factors which contributed significantly to a higher risk of fracture included the number of previous revisions; the average time between surgery and failure was 3.2 years after one revision, 2.8 years after two revisions, and 1.6 years after three revisions. The long, cementless, locked stem showed more early complications compared with recementing of long-stem prosthesis. We therefore recommend the use of cemented long stems in patients with severe bone loss and previous revision.

Published
2014

40. Fréquence de survenue et conséquences des dégradations des segments adjacents à une arthrodèse intersomatique par abord antérieur dans les spondylolisthésis dégénératifs. Étude rétrospective à propos de 29 opérés avec un recul minimum de 5ans

Author

Desroches, Asuka, primary, Allain, Jérôme, additional, Flouzat-lachaniette, Charles-henri, additional, Poignard, Alexandre, additional, Glorion, Christophe, additional, and Hernigou, Philippe, additional

Published
2016
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41. Que nous apprend le registre des prothèses de hanche SOFCOT-RENACOT 2024 ?

Author

Delaunay, Christian, Brand, Christian, Poichotte, Antoine, Poignard, Alexandre, and Boisgard, Stéphane

Abstract

Le registre multicentrique des prothèses de hanche (PH) de la Société française de chirurgie orthopédique et traumatologique (SOFCOT) collecte les données de près de 100 centres en France depuis 2006. Après 18 années de recueil, cette analyse a été menée afin d’en tirer les principaux enseignements.

Published
2024
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48. Development of a simple procedure for the treatment of femoral head osteonecrosis with intra-osseous injection of bone marrow mesenchymal stromal cells: study of their biodistribution in the early time points after injection

Author

Lebouvier, Angélique, primary, Poignard, Alexandre, additional, Cavet, Madeleine, additional, Amiaud, Jérôme, additional, Leotot, Julie, additional, Hernigou, Philippe, additional, Rahmouni, Alain, additional, Bierling, Philippe, additional, Layrolle, Pierre, additional, Rouard, Hélène, additional, and Chevallier, Nathalie, additional

Published
2015
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