Search results for "Joint prosthesis"
showing 6 items of 6 documents
Evaluation of total alloplastic temporo-mandibular joint replacement with two different types of prostheses : a three-year prospective study
2015
Background Temporo-Mandibular Joint (TMJ) replacement has been used clinically for years. The objective of this study was to evaluate outcomes achieved in patients with two different categories of TMJ prostheses. Material and Methods All patients who had a TMJ replacement (TMJR) implanted during the study period from 2006 through 2012 were included in this 3-year prospective study. All procedures were performed using the Biomet Microfixation TMJ Replacement System, and all involved replacing both the skull base component (glenoid fossa) and the mandibular condyle. Results Fifty-seven patients (38 females and 19 males), involving 75 TMJs with severe disease requiring reconstruction (39 unila…
Long-term results of the use of silicone sheets after diskectomy in the temporomandibular joint: clinical, radiographic and histopathologic findings
1999
The aim of the present study was to evaluate the long-term results of a group of patients who had the disk of the temporomandibular joint (TMJ) removed and permanently replaced by a silicone sheet. The study group comprised 48 patients, treated in the period from 1983 to 1993. In eight patients, the implants had to be removed after an average interval of 5.6 years and they were submitted for histopathological examination. Twenty-five of the 40 patients with silastic implants in place, and five of the 8 patients who had their implants removed, were available for long-term follow-up (mean interval of 7.0 years, SD 2.8 years). Clinical function was rated according to the Helkimo Dysfunction In…
Résultats fonctionnels après reconstruction de l’articulation temporo-mandibulaire par prothèse totale (2e partie)
2014
Resume Introduction Les pathologies de l’articulation temporo-mandibulaire (ATM) sont habituellement traitees medicalement. La gravite de l’atteinte et le retentissement fonctionnel peuvent justifier une reconstruction partielle ou totale. Nous avons evalue nos resultats apres reconstruction de l’ATM par prothese totale Biomet Microfixation® (Jacksonville, FL, Etats-Unis). Patients et methode Nous avons revu les dossiers des patients reconstruits entre 2009 et 2012 par une prothese totale d’ATM. L’ouverture buccale initiale et postoperatoire, l’occlusion dentaire initiale et postoperatoire, l’intensite des douleurs pre- et postoperatoire sur une echelle verbale simplifiee allant de 0 (absen…
New aspects in the histological examination of polyethylene wear particles in failed total joint replacements.
2002
The most important long-term complication in total joint replacements is aseptic osteolysis. Wear particles such as polyethylene (PE) debris are considered to be one of the causes that play a central role. Several studies indicated that PE can be visualised in paraffin-embedded tissue sections not only by polarised light, but also after oil red staining. To determine whether oil red staining enables sensitive detection of PE, we examined staining of mechanically-produced PE particles by oil red. Furthermore, we studied oil red staining of paraffin-embedded tissue specimens of patients with failed uncemented and cemented total knee and hip prostheses. We applied double labelling of sections …
Mid- to long-term results after bipolar radial head arthroplasty.
2009
Background Radial head arthroplasty is considered the treatment of choice for unreconstructable radial head fractures in the acute fracture situation. Although short-term results in the current literature are promising, replacement of the radial head remains controversial as long-term results are still missing. We report our 8.8-year results after treatment with a bipolar radial head prosthesis by Judet. Materials and methods In our department, 19 patients were treated with bipolar radial head arthroplasty between 1997 and 2001. Seventeen of these patients—14 men and 3 women—were examined retrospectively after 106 months (range, 78-139). Of these, 9 patients were treated primarily, 7 patien…
Experimentelle Untersuchungen zum Problem der Verankerung von H�ftendoprothesen
1973
Zum Problem einer dauerhaften Verankerung von Huftendoprothesen werden mit Hilfe einer Prazisionsprufmaschine Belastungsversuche mit cyclischer Wechseldruckbelastung an Oberschenkelknochen mit implantierter Endoprothese durchgefuhrt. Die Auswirkungen von hauptsachlich 3 in medialer Richtung auf die Prothesenabstutzung einwirkenden Kraftkomponenten, wie sie in theoretischen Uberlegungen und Modellvorstellungen entwickelt wurden, konnten so experimentell hinsichtlich ihrer Bedeutung fur die Prothesenlockerungen und -bruche bestatigt werden.