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TMJ Replacement

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https://read.qxmd.com/read/30693249/autologous-fat-grafting-in-total-temporomandibular-joint-replacement-surgery
#1
REVIEW
Wendy Van Bogaert, Nikolas De Meurechy, Maurice Yves Mommaerts
Context: Alloplastic temporomandibular joint replacement. Aims: To search for evidence for the use of periprosthetic autologous fat transplantation. Setting and Design: Systematic review. Materials and Methods: We searched in PubMed Central, Elsevier ScienceDirect Complete, Wiley Online Library Journals, Ovid Lippincott Williams and Wilkins, and Cochrane Library plus Results. Six studies reported improved results with the use of autologous fat graft (AFG) in patients treated with a total joint replacement, mainly about increased mobility...
July 2018: Annals of Maxillofacial Surgery
https://read.qxmd.com/read/30676453/endoscopically-assisted-middle-cranial-fossa-reconstruction-following-traumatic-intracranial-intrusion-of-the-mandibular-condyle
#2
Isaac Liau, Paul Sambrook, Andrew Cheng
Traumatic intracranial intrusions of the mandibular condyle are a rare injury pattern that carries significant morbid outcomes due to potential for neurological, otological, temporomandibular joint damage, or joint ankylosis. Treatment modalities involve either closed reduction, open approaches via transcranial or subtemporal approaches, or delayed total joint replacement. This paper presents a clinical report of a traumatic intracranial intrusion of the mandibular condyle treated with an endoscopically assisted preauricular approach to reconstruct the middle cranial fossa and temporomandibular articular disc...
January 19, 2019: Journal of Craniofacial Surgery
https://read.qxmd.com/read/30641280/partial-thickness-temporalis-rotation-for-alloplastic-temporomandibular-joint-how-i-do-it
#3
D Bhargava, R S Neelakandan, Y Sharma, S Beena, P Gurjar
With increasing clinical evidence, the replacement of the temporomandibular joint with alloplastic joints is being increasingly accepted in severe degenerative diseases. There remains a risk of infection and a possibility of a failure of not just these prostheses but any alloplastic joint prosthesis post-operatively. Therefore, an extra precaution and additional coverage to the joint using partial thickness myo-temporalis rotation flap could be a useful option to minimize post-operative joint failure.
January 11, 2019: Journal of Stomatology, Oral and Maxillofacial Surgery
https://read.qxmd.com/read/30516244/considerations-for-translation-of-tissue-engineered-fibrocartilage-from-bench-to-bedside
#4
Ryan P Donahue, Erik A Gonzalez-Leon, Jerry C Hu, Kyriacos Athanasiou
Fibrocartilage is found in the knee meniscus, the temporomandibular joint (TMJ) disc, the pubic symphysis, the annulus fibrosus of intervertebral disc, tendons, and ligaments. These tissues are notoriously difficult to repair due to their avascularity, and limited clinical repair and replacement options exist. Tissue engineering has been proposed as a route to repair and replace fibrocartilages. Using the knee meniscus and TMJ disc as examples, this review describes how fibrocartilages can be engineered toward translation to clinical use...
December 5, 2018: Journal of Biomechanical Engineering
https://read.qxmd.com/read/30385428/improvement-in-quality-of-life-after-botulinum-toxin-injection-for-temporomandibular-disorder
#5
S Villa, G Raoul, F Machuron, J Ferri, R Nicot
BACKGROUND: Temporomandibular disorders (TMDs) cause chronic pain and interfere with quality of life (QoL). Botulinum toxin is one of the treatment modalities popularly used for TMDs. The primary objective of this retrospective study was to evaluate improvement in QoL after botulinum toxin injections in patients with TMD. METHODS: Twenty-eight patients diagnosed with TMD were included in this study. In accordance with the Research Diagnostic Criteria for Temporomandibular Disorders, all patients had myofascial pain...
October 29, 2018: Journal of Stomatology, Oral and Maxillofacial Surgery
https://read.qxmd.com/read/30315791/a-retrospective-study-of-patient-outcomes-after-temporomandibular-joint-replacement-with-alloplastic-total-joint-prosthesis-at-massachusetts-general-hospital
#6
Rohit Sahdev, Brendan W Wu, Nina Anderson, Shehryar N Khawaja, Somi Kim, David A Keith
PURPOSE: Disorders of the temporomandibular joint (TMJ) occur frequently, with a prevalence of 15 to 18%. Total joint replacement (TJR) surgery is indicated for severe joint damage associated with impaired function, pain, or occlusal change for which other treatments have been unsuccessful. The aim of this study was to assess changes in pain and range of motion (ROM), as well as postoperative complications and comorbidities, in patients receiving TJR surgery at Massachusetts General Hospital (MGH)...
September 18, 2018: Journal of Oral and Maxillofacial Surgery
https://read.qxmd.com/read/30290017/role-of-synovium-derived-fibrous-cartilage-in-temporomandibular-joint-synovial-chondromatosis
#7
Yingjie Li, Yaping Feng, Pinyin Cao, Jin Ke, Wei Fang, Hengxing Cai, Mohong Deng, Xing Long
BACKGROUND: Synovial chondromatosis (SC) of temporomandibular joint (TMJ) occupies 3% SC cases. In other joints like hip and knee which were composed hyaline cartilage (HC), loose bodies (LBs) were reported to be a HC feature. However, condyle surface and disc in TMJ are fibrous cartilage (FC). Therefore, we proposed a different pathogenesis of TMJSC. METHODS: LBs and synovium were collected from seven TMJSC patients, and histological and immunohistological examinations were performed...
January 2019: Journal of Oral Pathology & Medicine
https://read.qxmd.com/read/30150011/comparison-of-bone-adaptation-after-modification-in-biomet-standard-alloplastic-temporomandibular-joint-prostheses
#8
Jieyun Zhao, Luxiang Zou, Dongmei He, Edward Ellis
PURPOSE: The aim of the study was to compare bone adaptation after design modification in Biomet stock prostheses. MATERIALS AND METHODS: Computed tomography (CT) data of the patients treated with a Biomet TMJ replacement from 2010 to 2016 were recruited. Fossa prosthesis with a bulge and 4 types of condyle-ramus angle prostheses were virtually designed and implanted by computer-assisted simulation. The amount of bone trimming including fossa, mandibular ramus and bone graft were measured by ProPlan CMF 1...
October 2018: Journal of Cranio-maxillo-facial Surgery
https://read.qxmd.com/read/30102880/idiopathic-condylar-resorption-a-survey-and-review-of-the-literature
#9
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://read.qxmd.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
#10
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...
October 2018: Journal of Cranio-maxillo-facial Surgery
https://read.qxmd.com/read/30008344/surgical-management-of-idiopathic-condylar-resorption-orthognathic-surgery-versus-temporomandibular-total-joint-replacement
#11
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://read.qxmd.com/read/29958720/extended-total-temporomandibular-joint-replacements-a-classification-system
#12
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...
September 2018: British Journal of Oral & Maxillofacial Surgery
https://read.qxmd.com/read/29946796/fibro-chondrogenic-differentiation-of-dental-stem-cells-into-chitosan-alginate-scaffolds-towards-temporomandibular-joint-disc-regeneration
#13
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://read.qxmd.com/read/29859818/a-new-three-dimensional-print-on-demand-temporomandibular-prosthetic-total-joint-replacement-system-preliminary-outcomes
#14
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://read.qxmd.com/read/29772190/serum-metal-levels-in-maxillofacial-reconstructive-surgery-patients-a-pilot-study
#15
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://read.qxmd.com/read/29679738/the-auricular-cartilage-graft-used-as-interpositional-material-for-disc-replacement-after-failed-tmj-operative-arthroscopy
#16
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://read.qxmd.com/read/29627367/development-of-a-patient-specific-temporomandibular-joint-prosthesis-according-to-the-groningen-principle-through-a-cadaver-test-series
#17
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://read.qxmd.com/read/29530748/protocol-for-single-stage-bilateral-temporomandibular-joint-replacement-using-intraoperative-navigation-in-patients-with-ankylosis
#18
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://read.qxmd.com/read/29526560/biomechanical-simulation-of-temporomandibular-joint-replacement-tmjr-devices-a-scoping-review-of-the-finite-element-method
#19
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://read.qxmd.com/read/29400140/scaffold-based-temporomandibular-joint-tissue-regeneration-in-experimental-animal-models-a-systematic-review
#20
REVIEW
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...
August 2018: Tissue Engineering. Part B, Reviews
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