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TMJ Replacement

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https://www.readbyqxmd.com/read/30102880/idiopathic-condylar-resorption-a-survey-and-review-of-the-literature
#1
Lena Alsabban, Felix Jose Amarista, Louis G Mercuri, Daniel Perez
PURPOSE: Idiopathic condylar resorption (ICR) is a relatively uncommon condition. Its diagnosis, etiology, and management options are controversial. Furthermore, it is difficult for 1 provider to collect a large cohort of ICR patients to develop a statistically significant study of these concerns. Therefore, the purpose of this study was to survey experienced temporomandibular joint (TMJ) surgeons who have managed ICR cases relative to these concerns, as well as review the management outcome literature...
July 19, 2018: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/30037502/biomet-stock-temporomandibular-joint-prosthesis-long-term-outcomes-of-the-use-of-titanium-condyles-secured-with-four-or-five-condylar-fixation-screws
#2
Stefanos Kanatsios, Omar Breik, George Dimitroulis
PURPOSE: The aim of this study was to determine the long-term outcomes following TMJ replacement using the stock Zimmer-Biomet TMJ device. In particular, investigated whether the titanium condylar implant and number of screws used to fixate it to the mandibular ramus had any impact on outcomes. METHODS: Subjects who underwent surgical implantation of a stock Zimmer-Biomet TMJ prosthesis were identified for this retrospective study. All patients received a titanium condylar component secured with four or five screws and ultra-high molecular weight polyethylene (UHMWPE) fossa with no metal reinforcement...
July 11, 2018: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/30008344/surgical-management-of-idiopathic-condylar-resorption-orthognathic-surgery-versus-temporomandibular-total-joint-replacement
#3
REVIEW
Radhika Chigurupati, Pushkar Mehra
Young females with retruded and hyperdivergent mandibles, class II openbite malocclusions, and steep occlusal planes with or without TMJ symptoms are at higher risk for Idiopathic Condylar Resorption (ICR). Such patients undergoing orthodontic and /or surgical treatment should be informed of possible relapse due to ICR. Orthognathic Surgery with Total joint replacement or Orthognathic surgery alone may both be acceptable options for management of the facial deformity and the malocclusion that ensues from ICR...
August 2018: Oral and Maxillofacial Surgery Clinics of North America
https://www.readbyqxmd.com/read/29958720/extended-total-temporomandibular-joint-replacements-a-classification-system
#4
R Elledge, L G Mercuri, B Speculand
Prosthetic total temporomandibular joint (TMJ) replacement (TJR) is well established in the United Kingdom, with clear guidelines for indications and nationally published outcomes. CAD/CAM technology has made it possible to push the boundaries of custom-made TJR to include extended versions (eTJR), which may replace segmental mandibular defects or defects in the skull base with extended components for the ramus and fossa, respectively. Such prostheses are uncommon, and published reports are restricted to isolated cases and series of cases...
June 26, 2018: British Journal of Oral & Maxillofacial Surgery
https://www.readbyqxmd.com/read/29946796/fibro-chondrogenic-differentiation-of-dental-stem-cells-into-chitosan-alginate-scaffolds-towards-temporomandibular-joint-disc-regeneration
#5
Maria Bousnaki, Athina Bakopoulou, Danai Papadogianni, Nektaria-Marianthi Barkoula, Kalliopi Alpantaki, Aristidis Kritis, Maria Chatzinikolaidou, Petros Koidis
Tissue engineering (TE) may provide effective alternative treatment for challenging temporomandibular joint (TMJ) pathologies associated with disc malpositioning or degeneration and leading to severe masticatory dysfunction. Aim of this study was to evaluate the potential of chitosan/alginate (Ch/Alg) scaffolds to promote fibro/chondrogenic differentiation of dental pulp stem cells (DPSCs) and production of fibrocartilage tissue, serving as a replacement of the natural TMJ disc. Ch/Alg scaffolds were fabricated by crosslinking with CaCl2 combined or not with glutaraldehyde, resulting in two scaffold types that were physicochemically characterized, seeded with DPSCs or human nucleus pulposus cells (hNPCs) used as control and evaluated for cell attachment, viability, and proliferation...
June 26, 2018: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/29859818/a-new-three-dimensional-print-on-demand-temporomandibular-prosthetic-total-joint-replacement-system-preliminary-outcomes
#6
George Dimitroulis, Stephen Austin, Peter Vee Sin Lee, David Ackland
PURPOSE: The aim of this study is to present the preliminary clinical data on the OMX Temporomandibular Joint (TMJ) Prosthetic total joint replacement system. MATERIALS AND METHODS: A prospective, cohort, clinical study was undertaken of consecutive adult patients with Category 5 end-stage joint disease who were implanted with the OMX TMJ prosthesis between May 2015 and April 2017. A total of 50 devices were implanted in 38 patients, with 12 patients receiving bilateral prosthetic joints...
August 2018: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29772190/serum-metal-levels-in-maxillofacial-reconstructive-surgery-patients-a-pilot-study
#7
Louis G Mercuri, Michael Miloro, Anastasia K Skipor, Divya Bijukumar, Cortino Sukotjo, Mathew T Mathew
PURPOSE: The aim of this pilot study was to assay metal concentrations in the serum of patients who had undergone dental implant placement, orthognathic surgery using rigid metal fixation plates and screws, and total temporomandibular joint replacement (TMJ TJR). MATERIALS AND METHODS: Thirty patients were identified and included in this pilot study. Sixteen patients (9 men and 8 women), with an average age of 44 years (range, 19 to 79 yr), provided informed consent to participate and were divided into 3 study groups with 4 patients in each (group 1, orthognathic surgery; group 2, TMJ TJR; and group 3, dental implant placement)...
April 21, 2018: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29679738/the-auricular-cartilage-graft-used-as-interpositional-material-for-disc-replacement-after-failed-tmj-operative-arthroscopy
#8
M F Muñoz-Guerra, F J Rodríguez-Campo, M Fernández-Domínguez
OBJECTIVES: The aim of this study was to evaluate the preoperative and 2-years postoperative clinical and radiological findings in a group of patients after temporomandibular joint discectomy and interpositional autogenous auricular cartilage graft. MATERIALS AND METHODS: The technique involved a disc removal, condylar remodeling and fixation of the graft to the fossa-eminence region. Preoperative and 2-years postoperative clinical findings and magnetic resonance features were evaluated in a group of 13 patients (fourteen joints)...
April 19, 2018: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29627367/development-of-a-patient-specific-temporomandibular-joint-prosthesis-according-to-the-groningen-principle-through-a-cadaver-test-series
#9
J Kraeima, B J Merema, M J H Witjes, F K L Spijkervet
OBJECTIVES: Patients suffering from osteoarthritis, ankylosis (e.g. post-trauma or tumour) in the temporomandibular joint (TMJ) can present with symptoms such as severely restricted mouth opening, pain or other dynamic restrictions of the mandible. To alleviate the symptoms, a total joint prosthesis can be indicated, such as the Groningen TMJ prosthesis. This was developed as a stock device with a lowered centre of rotation for improved translational and opening capacity. This study aimed to improve the design of the prosthesis, and produce a workflow for a customized Groningen TMJ prosthesis, in order to make it more accurate and predictable...
May 2018: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29530748/protocol-for-single-stage-bilateral-temporomandibular-joint-replacement-using-intraoperative-navigation-in-patients-with-ankylosis
#10
Marshall F Newman, D Graham Lee, M Kinon Lecholop
Treatment of patients with bilateral temporomandibular joint (TMJ) ankylosis in a single-stage procedure can be challenging. The implementation of intraoperative navigation has proved beneficial by enabling faster and safer excision by providing real-time identification of vital structures. Navigation also can be used to verify site preparation for custom joint prostheses. This article seeks to establish a protocol, based on the use of intermaxillary fixation screws, to produce accurate and repeatable outcomes for the correction of bilateral TMJ ankylosis with total joint replacement in a single-stage procedure...
July 2018: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29526560/biomechanical-simulation-of-temporomandibular-joint-replacement-tmjr-devices-a-scoping-review-of-the-finite-element-method
#11
REVIEW
Y L Rodrigues, M T Mathew, L G Mercuri, J S P da Silva, B Henriques, J C M Souza
The aim of this study was to perform a literature review on the use of finite element modeling (FEM) for the evaluation of the biomechanical behavior of temporomandibular joint replacement (TMJR) devices. An electronic search of online medical and scientific literature database was conducted using selected search terms. The search identified 307 studies, of which 19 were considered relevant to this study. Of the 19 selected studies, 10 (52.6%) investigated the influence of geometry and fixation methods, while two (10...
August 2018: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29400140/scaffold-based-temporomandibular-joint-tissue-regeneration-in-experimental-animal-models-a-systematic-review
#12
Espen Helgeland, Siddharth Shanbhag, Torbjørn Ostvik Pedersen, Kamal Mustafa, Annika Rosén
Reconstruction of degenerated temporomandibular joint (TMJ) structures remains a clinical challenge. Tissue engineering (TE) is a promising alternative to current treatment options, where the TMJ is either left without functional components, or replaced with autogenous, allogeneic, or synthetic grafts. The objective of this systematic review was to answer the focused question: in experimental animal models, does the implantation of biomaterial scaffolds loaded with cells and/or growth factors (GFs) enhance regeneration of the discal or osteochondral TMJ tissues, compared with scaffolds alone, without cells, or GFs? Following PRISMA (Preferred Reporting Items for Systematic reviews and Meta-Analysis) guidelines, electronic databases were searched for relevant controlled preclinical in vivo studies...
March 8, 2018: Tissue Engineering. Part B, Reviews
https://www.readbyqxmd.com/read/29303858/surgical-treatment-of-synovial-chondromatosis-in-the-inferior-compartment-of-the-temporomandibular-joint-with-articular-disc-involvement
#13
Pablo Cornelius Comelli Leite, Elen de Souza Tolentino, Amanda Lury Yamashita, Lilian Cristina Vessoni Iwaki, Liogi Iwaki Filho
The authors report an unusual case of painful synovial chondromatosis originated in the inferior compartment of the temporomandibular joint (TMJ) with articular disc involvement in a 56-year-old woman with complaint of severe pain in the right preauricular region. Magnetic resonance images showed advanced destruction of the right articular disc anteriorly displaced, condylar erosion, and distinct nodules within an extremely expanded inferior joint compartment with large amount of fluid, as well as a large TMJ effusion...
March 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29245099/total-bilateral-tmj-reconstruction-for-pain-and-dysfunction-case-report
#14
Carlos Vinícius Ayres Moreira, André Victor Pinto Serra, Larissa Oliveira Ramos Silva, Ana Carolina Fraga Fernandes, Roberto Almeida de Azevedo
INTRODUCTION: Temporomandibular disorders encompass a set of clinical conditions that affect the temporomandibular joint, the masticatory muscles and the associated tissues. Many therapeutic alternatives can be considered, being divided into non-invasive, minimally invasive and invasive interventions. This work aims to report a case of inflammatory joint pain and dysfunction treated with bilateral TMJ full reconstruction with alloplastic prosthesis stock. CASE REPORT: Patient D...
2018: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29221499/an-unusual-osteoma-in-the-mandibular-condyle-and-the-successful-replacement-of-the-temporomandibular-joint-with-a-custom-made-prosthesis-a-case-report
#15
Natalia Tavares de Souza, Renan Carlos Lopes Cavalcante, Maria Aparecida de Albuquerque Cavalcante, Wagner Hespanhol, Marcello Rodrigues de Oliveira, Dennis de Carvalho Ferreira, Thais Machado de Carvalho Coutinho, Lucio Souza Gonçalves
BACKGROUND: An osteoma is a benign tumor of bone with unknown etiology and is considered rare, mostly restricted to the craniofacial skeleton. CASE PRESENTATION: This case report describes an uncommon condylar osteoma in a 67 years old white female patient with laterognathism to the left side, limited mouth opening, aesthetic change and pain associated with the right temporomandibular joint (TMJ). The histopathological examination confirmed osteoma. The lesion was surgically excised and immediate reconstruction was carried out using a custom-made total TMJ prosthesis...
December 8, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/29153233/temporomandibular-joint-reconstruction-in-the-growing-child
#16
REVIEW
Cory M Resnick
Indications and considerations for reconstruction of the temporomandibular joint (TMJ) differ between growing and skeletally mature patients. Osteoarthritis, which is the most common cause of TMJ destruction in adults, is comparatively rare in children. The most common indications in young patients are congenital deformities, pathology, ankylosis and progressive resorptive processes. Options for reconstruction include distraction osteogenesis, autologous reconstruction (ie, costochondral graft, free fibula flap), and total alloplastic joint replacement...
February 2018: Oral and Maxillofacial Surgery Clinics of North America
https://www.readbyqxmd.com/read/29127312/progesterone-attenuates-temporomandibular-joint-inflammation-through-inhibition-of-nf-%C3%AE%C2%BAb-pathway-in-ovariectomized-rats
#17
Xin-Tong Xue, Xiao-Xing Kou, Chen-Shuang Li, Rui-Yun Bi, Zhen Meng, Xue-Dong Wang, Yan-Heng Zhou, Ye-Hua Gan
Sex hormones may contribute to the symptomatology of female-predominant temporomandibular disorders (TMDs) inflammatory pain. Pregnant women show less symptoms of TMDs than that of non-pregnant women. Whether progesterone (P4), one of the dominant sex hormones that regulates multiple biological functions, is involved in symptoms of TMDs remains to be explored. Freund's complete adjuvant were used to induce joint inflammation. We evaluated the behavior-related and histologic effects of P4 and the expression of tumor necrosis factor (TNF)-α, interleukin (IL)-1β, and IL-6 in the synovial membrane...
November 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29126692/biomaterials-in-temporomandibular-joint-replacement-current-status-and-future-perspectives-a-narrative-review
#18
REVIEW
N De Meurechy, A Braem, M Y Mommaerts
The alloplastic total temporomandibular joint (TMJ) prosthesis has a long history, with many different materials and designs used. While several of these materials have proven valuable over time, many others have not been suitable for implantation, resulting in failure and the need for explantation of the implant. Because of the failure of several of these systems, the use of alloplastic prostheses has reduced dramatically, despite their advantages over autogenous restoration. The aim of this narrative review is to discuss the criteria that must be met by a biomaterial in order for it to be considered suitable for implantation, as well as the common complications that can occur...
April 2018: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29116495/mandibular-kinematics-and-maximum-voluntary-bite-force-following-segmental-resection-of-the-mandible-without-or-with-reconstruction
#19
Sabine S Linsen, Annina Oikonomou, Markus Martini, Marcus Teschke
OBJECTIVES: The purpose was to analyze mandibular kinematics and maximum voluntary bite force in patients following segmental resection of the mandible without and with reconstruction (autologous bone, alloplastic total temporomandibular joint replacement (TMJ TJR)). MATERIALS AND METHODS: Subjects operated from April 2002 to August 2014 were enrolled in the study. Condylar (CRoM) and incisal (InRoM) range of motion and deflection during opening, condylar retrusion, incisal lateral excursion, mandibular rotation angle during opening, and maximum voluntary bite force were determined on the non-affected site and compared between groups...
May 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29077682/one-stage-treatment-of-giant-condylar-osteoma-alloplastic-total-temporomandibular-joint-replacement-aided-by-digital-templates
#20
Xin Xu, Hailong Ma, Shufang Jin
OBJECTIVES: To introduce the surgical techniques and evaluate the effect of alloplastic total temporomandibular joint (TMJ) replacement aided by digital templates in giant condylar osteoma. METHODS: Three patients with giant condylar osteoma were enrolled in this study. The maximal mouth opening was 1.9 cm on average. All the patients were underwent the computed tomography scan (slice thickness 1 mm) and the data were imported to Proplan 1.3 software for 3-dimensional bony segmentation and reconstruction...
May 2018: Journal of Craniofacial Surgery
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