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She Y, Tang S, Zhu Z, Sun Y, Deng W, Wang S, Jiang N. Comparison of temporomandibular joint disc, meniscus, and intervertebral disc in fundamental characteristics and tissue engineering. J Biomed Mater Res B Appl Biomater 2023; 111:717-729. [PMID: 36221912 DOI: 10.1002/jbm.b.35178] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 09/24/2022] [Accepted: 09/27/2022] [Indexed: 01/21/2023]
Abstract
The temporomandibular joint (TMJ) disc, meniscus and intervertebral disc (IVD) are three fibrocartilage discs, which play critical roles in our daily life. Their degeneration contributes to diseases such as TMJ disorders, osteoarthritis and degenerative disc disease, affecting patients' quality of life and causing substantial morbidity and mortality. Interestingly, similar in some aspects of fundamental characteristics, they exhibit differences in other aspects such as biomechanical properties. Highlighting these similarities and differences can not only benefit a comprehensive understanding of them and their pathology but also assist in future research of tissue engineering. Likewise, comparing their tissue engineering in cell sources, scaffold and stimuli can guide imitation and improvement of their engineered discs. However, the anatomical structure, function, and biomechanical characteristics of the IVD, TMJ, and Meniscus have not been compared in any meaningful depth needed to advance current tissue engineering research on these joints, resulting in incomplete understanding of them and their pathology and ultimately limiting future research of tissue engineering. This review, for the first time, comprehensively compares three fibrocartilage discs in those aspects to cast light on their similarities and differences.
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Affiliation(s)
- Yilin She
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Disease and West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Shiyi Tang
- West China Medical School, Sichuan University, Chengdu, China
| | - Zilin Zhu
- College of Life Sciences, Sichuan University, Chengdu, China
| | - Yixin Sun
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Disease and West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Wanyu Deng
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Disease and West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Sicheng Wang
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Disease and West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Nan Jiang
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Disease and West China Hospital of Stomatology, Sichuan University, Chengdu, China
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García Martín I, Cariati P, Martínez-Sauquillo Rico A, Cabello Serrano A, García Medina B. Arthroscopic osteoplasty of the medial and anteromedial wall of temporomandibular joint: surgical technique and anatomical considerations. Br J Oral Maxillofac Surg 2023; 61:72-77. [PMID: 36535863 DOI: 10.1016/j.bjoms.2022.11.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 10/19/2022] [Accepted: 11/06/2022] [Indexed: 11/13/2022]
Abstract
The anterior displacement of the articular disc is the most frequent cause of pathological alterations in the TMJ. Although it is an extremely common pathology, there is no certainty about the aetiopathogenesis of this disease. The main aim of the present report is to describe new anatomical findings that could help clarifying the aetiopathogenesis of this disease and determine a typology of treatment based on the cause of the disease. All the operative records of patients who underwent arthroscopic osteoplasty of the medial TMJ wall in our centre from January 2021 to September 2021 were reviewed and analysed to identify specific anatomical features observed in every procedure. Fifty-two joints were included for analysis in this study. Twenty-two joints were classified as Wilkes stages II-III and 30 as Wilkes stages IV-V. The most common complication observed in our sample was the dysaesthesias found in the temporal and preauricular regions. Other complications observed were frontal branch paresis (n = 2), intraoperative bleeding (n = 1), and postoperative malocclusion (n = 1). The compression of the superior head of pterygoid lateral muscle (SPLM) on the medial bony wall and the consequent muscle atrophy could be key for the aetiology of the anterior TMJ disc displacement. Therapeutic actions on the osseous and muscular component in this anatomical area could improve the outcomes of patients affected by TMJ internal derangement. A meticulous dissection of the fascia of the superior fascicle of the lateral pterygoid muscle allows a remodelling of the bone surfaces with minimal complications.
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Affiliation(s)
- Irene García Martín
- Department of Oral and Maxillofacial Surgery, University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Paolo Cariati
- Hospital General Universitario de Albacete, Departamento de Cirugía Oral y Maxilofacial, Albacete, Spain.
| | | | - Almudena Cabello Serrano
- Hospital Universitario Virgen de las Nieves de Granada, Departamento de Cirugía Oral y Maxilofacial, Granada, Spain
| | - Blas García Medina
- Hospital Universitario Virgen de las Nieves de Granada, Departamento de Cirugía Oral y Maxilofacial, Granada, Spain
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Assessment of anterior positioning splint in conjunction with lateral pterygoid BTX injection to treat TMJ disc displacement with reduction - a preliminary report. Maxillofac Plast Reconstr Surg 2021; 43:33. [PMID: 34495418 PMCID: PMC8426453 DOI: 10.1186/s40902-021-00317-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 07/29/2021] [Indexed: 11/26/2022] Open
Abstract
Objective Treatment of temporomandibular disc displacement with reduction is controversial. This study assesses the use of an anterior positioning splint with botulinum toxin in the lateral pterygoid muscle (BTX) for such cases. Methods Twelve joints were included; groups I and II received BTX injection while group II also received an anterior positioning splint. Pain scores and clicking status were recorded at regular intervals then a postoperative MRI was done after 4 months. Results Clinical improvement was noted in both groups. Mean pain scores dropped significantly and clicks in the twelve joints disappeared in 83% of group I and 33% of group II. MRIs showed significant disc position improvement with the higher mean change (1.33 ± 0.76) in group I. Group I showed better improvement of discal position and only one joint regained a click. Patients of group II reported discomfort from the splint which may have caused psychological distress and so worst pain scores. Conclusions Group I showed slightly better results but the cost of BTX injections and the complications of the splint should be kept in mind and the decision of treatment selection made according to each condition.
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Lesions of the lateral pterygoid muscle-an overestimated reason for temporomandibular dysfunction: a 3T magnetic resonance imaging study. Int J Oral Maxillofac Surg 2020; 49:1611-1617. [PMID: 32475707 DOI: 10.1016/j.ijom.2020.04.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 03/08/2020] [Accepted: 04/22/2020] [Indexed: 01/18/2023]
Abstract
The aim of this study was to examine the lateral pterygoid muscle (LPM) parenchyma, myotendinous junction, and tendon in temporomandibular disorder (TMD) patients using 3T magnetic resonance imaging (MRI). Results were compared with findings reported in the literature, in which the LPM has been attributed a major role in triggering TMD. 3T MRI was used for temporomandibular joint (TMJ) imaging. The MRI images of 63 patients were analysed for muscle contracture and atrophy, tendon rupture, signal alterations of the tendon, tendon contrast enhancement, and peritendinous fluid collection. Descriptive statistics and the coefficient estimate method were used for statistical analysis. Focus was placed on the association between LPM tendon pathology and TMJ lesions like osteoarthritis and disc displacement. Severe lesions of the LPM tendon and muscle parenchyma, like rupture or fibrosis, were detected in very few cases. Only moderate signs of tendinosis were found in TMD patients. In contrast, there was a clear correlation between tendon lesions and osteoarthritis or anterior disc displacement. These results indicate the need to discuss and question the role of the LPM and its tendon in TMD. Data suggest that LPM and tendon lesions are part of complex degenerative changes of the TMJ, and it seems less likely that a LPM disorder is causative in TMD.
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Vargas CA, Baptista CAC, Del Sol M, Sandoval C, Vásquez B, Veuthey C, Ottone NE. Development of an ultrathin sheet plastination technique in rat humeral joints with osteoarthritis induced by monosodium iodoacetate for neovascularization study. Anat Sci Int 2019; 95:297-303. [PMID: 31401788 DOI: 10.1007/s12565-019-00500-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 08/05/2019] [Indexed: 11/27/2022]
Abstract
Injection with monosodium iodoacetate (MIA) is widely used to produce osteoarthritis (OA). Ultrathin sheet plastination has been used to study the morphology of structures, with strong application in anatomical education and research. Our aim was to carry out, for the first time, ultrathin sheet plastination of rat humeral joints to observe the neovascularization provoked by OA. We injected 0.1 mL of MIA into the left humeral joints of ten Sprague-Dawley rats. The right shoulders of the same rats were used as control. Sixteen weeks after the injection, the animals were euthanized and were given an immediate red epoxy resin injection through the thoracic aorta. The samples were fixed in 10% formalin, prior to the plastination process, without decalcification. Samples were dehydrated with acetone (100%) at - 25 °C, for 10 days. Later, for degreasing, samples were immersed in methylene chloride at room temperature during 1 week. Forced impregnation was performed inside a stove within a vacuum chamber. The plastinated blocks obtained were cut with a slow velocity diamond blade saw. Slices were placed in curing chambers to achieve curing and final tissue transparentation. 230 μm thickness slices were obtained. The slices were analyzed under magnifying glass and microscope, achieving visualization of OA neovascularization. The cartilage affected by OA loses its ability to remain avascular, and blood vessels invade it from the subchondral bone to the calcified and uncalcified cartilage. Ultra-thin sheet plastination is useful to observe articular cartilage neovascularization, caused by OA induced with MIA in humeral rat joint.
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Affiliation(s)
- Claudia Andrea Vargas
- Doctoral Program in Morphological Sciences, Medicine School, Universidad de La Frontera, Temuco, Chile
- Department of Physical Education, Sports and Recreation, Education School, Universidad de La Frontera, Temuco, Chile
| | - Carlos A C Baptista
- Laboratory of Plastination, Department of Medical Education, College of Medicine, University of Toledo, Toledo, OH, USA
| | - Mariano Del Sol
- Doctoral Program in Morphological Sciences, Medicine School, Universidad de La Frontera, Temuco, Chile
- Center of Excellence in Morphological and Surgical Studies (CEMyQ), Universidad de La Frontera, Temuco, Chile
| | - Cristian Sandoval
- Center of Excellence in Morphological and Surgical Studies (CEMyQ), Universidad de La Frontera, Temuco, Chile
| | - Bélgica Vásquez
- Facultad de Ciencias de la Salud, Universidad de Tarapacá, Arica, Chile
| | - Carlos Veuthey
- Laboratory of Plastination and Anatomical Techniques, Research Centre for Dental Sciences (CICO), Dental School, Universidad de La Frontera, Francisco Salazar 01145, Casilla 54-D, Temuco, Chile
| | - Nicolás Ernesto Ottone
- Doctoral Program in Morphological Sciences, Medicine School, Universidad de La Frontera, Temuco, Chile.
- Center of Excellence in Morphological and Surgical Studies (CEMyQ), Universidad de La Frontera, Temuco, Chile.
- Laboratory of Plastination and Anatomical Techniques, Research Centre for Dental Sciences (CICO), Dental School, Universidad de La Frontera, Francisco Salazar 01145, Casilla 54-D, Temuco, Chile.
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Outcomes of the use of plastination in anatomy education: current evidence. Surg Radiol Anat 2019; 41:1181-1186. [PMID: 31203398 DOI: 10.1007/s00276-019-02270-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Accepted: 06/07/2019] [Indexed: 10/26/2022]
Abstract
PURPOSE We aimed to evaluate the quantity and quality of current evidence concerning the outcomes of use of plastinated specimens in anatomy education. METHODS We performed a narrative literature review, searching for papers dealing with the use of plastination in anatomy education. PubMed, Scopus, ERIC, Cochrane, Web of Science and CINAHL complete electronic databases were searched. The following data were extracted: author(s), year of publication, type of study (comparative or not), number of participants, evaluation of statistical significance, educational outcomes and their level according to Kirkpatrick hierarchy. RESULTS Six studies were eligible for analysis. Five of them evaluated only students' reactions about plastination and one study also assessed their examinations results. There were four non-comparative and two comparative studies. Only a study evaluated statistical significance (p < 0.05) with higher score of perception in 2nd year undergraduate medical students, who were more familiar with plastination in comparison to 1st year students. Although the use of plastination was accompanied by positive outcomes in the majority of studies (five out of six), this method was not proved superior to traditional cadavers dissection. CONCLUSIONS The existing evidence about the outcomes of the use of plastination in anatomy education is relatively limited and lacks comparative studies with statistical significant results. Positive students' reactions were generally noted, but further research is needed to clarify if plastination could be of benefit to students' attitude and anatomy knowledge.
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Ottone NE, Baptista CAC, Latorre R, Bianchi HF, Del Sol M, Fuentes R. E12 sheet plastination: Techniques and applications. Clin Anat 2017; 31:742-756. [DOI: 10.1002/ca.23008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 10/10/2017] [Accepted: 10/25/2017] [Indexed: 11/07/2022]
Affiliation(s)
- Nicolas Ernesto Ottone
- Laboratory of Plastination & Anatomical Techniques, CICO Research Centre of Dental Sciences, Adults Integral Dentistry Department, Dental School; Universidad de la Frontera; Temuco Chile
- Doctoral Program in Morphological Sciences, Faculty of Medicine; Universidad de La Frontera; Temuco Chile
| | - Carlos A. C. Baptista
- Laboratory of Plastination, Department of Medical Education; College of Medicine, University of Toledo; Toledo Ohio
| | - Rafael Latorre
- Department of Anatomy and Compared Pathological Anatomy; Campus Mare Nostrum, University of Murcia; Spain
| | - Homero Felipe Bianchi
- Anatomy Department; School of Medicine, University of Buenos Aires; Buenos Aires Argentina
- Anatomy Department; IUCS Barcelo Foundation; Buenos Aires Argentina
| | - Mariano Del Sol
- Doctoral Program in Morphological Sciences, Faculty of Medicine; Universidad de La Frontera; Temuco Chile
- Center of Excellence in Morphological and Surgical Studies (CEMyQ); Faculty of Medicine, Universidad de La Frontera; Chile
| | - Ramon Fuentes
- Laboratory of Plastination & Anatomical Techniques, CICO Research Centre of Dental Sciences, Adults Integral Dentistry Department, Dental School; Universidad de la Frontera; Temuco Chile
- Doctoral Program in Morphological Sciences, Faculty of Medicine; Universidad de La Frontera; Temuco Chile
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