Temporomandibular joint ankylosis

Tideman, H.; Doddridge, Miles

doi:10.1111/j.1834-7819.1987.tb01850.x

Cited by 52 publications

(8 citation statements)

References 7 publications

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“…Most interesting is the reported overgrowth of the graft (Ellis et al, 2002). Many studies reported on the transplantation of 1-2 cm of cartilage with the costochondral graft when replacing the mandibular condyle (Rowe, 1982;Figueroa et al, 1984;Munro et al, 1986;Tideman and Doddridge, 1987). It is hypothesized that overgrowth of the mandible following costochondral grafting occurred because of transplantation of excessive amounts of cartilage (Copray et al, 1986;Peltomäki and Rönning, 1991;Peltomäki, 1992;Svensson and Adell, 1998;Ellis et al, 2002).…”

Section: Discussionmentioning

confidence: 99%

Treatment of TMJ ankylosis in Jordanian children – a comparison of two surgical techniques

Qudah¹,

Qudeimat

Al-Maaita³

2005

Journal of Cranio-Maxillofacial Surgery

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Section: Discussionmentioning

confidence: 99%

Treatment of TMJ ankylosis in Jordanian children – a comparison of two surgical techniques

Qudah¹,

Qudeimat

Al-Maaita³

2005

Journal of Cranio-Maxillofacial Surgery

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“…Most incidents of TMJ ankylosis occur after a trauma or an infection. Cases of congenital TMJ ankylosis are relatively rare, representing about 3% of TMJ ankylosis incidents (Converse, 1979;Tideman and Doddridge, 1987;Komorowska, 1997;Ajike et al, 2007;Mortazavi and Motamedi, 2007). However, little is known about genetic alterations that cause congenital TMJ ankylosis.…”

Section: Introductionmentioning

confidence: 99%

Shox2-deficiency leads to dysplasia and ankylosis of the temporomandibular joint in mice

Wei

et al. 2008

Mechanisms of Development

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The temporomandibular joint (TMJ) is a unique synovial joint whose development differs from the formation of other synovial joints. Mutations have been associated with the developmental defects of the TMJ only in a few genes. In this study, we report the expression of the homeobox gene Shox2 in the cranial neural crest derived mesenchymal cells of the maxilla-mandibular junction and later in the progenitor cells and undifferentiated chondrocytes of the condyle as well as the glenoid fossa of the developing TMJ. A conditional inactivation of Shox2 in the cranial neural crest-derived cells causes developmental abnormalities in the TMJ, including dysplasia of the condyle and glenoid fossa. The articulating disc forms but fuses with the fibrous layers of the condyle and glenoid fossa, clinically known as TMJ ankylosis. Histological examination indicates a delay in development in the mutant TMJ, accompanied by a significantly reduced rate of cell proliferation. In situ hybridization further demonstrates an altered expression of several key osteogenic genes and a delayed expression of the osteogenic differentiation markers. Shox2 appears to regulate the expression of osteogenic genes and is essential for the development and function of the TMJ. The Shox2 conditional mutant thus provides a unique animal model of TMJ ankylosis.

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“…It has been observed that the age of patients' when exposed to injury is an important factor in the assessment of maxillofacial deformities particularly in ankylosis of the TMJ. When children, especially below the age of 5 years are exposed to these injuries, it results in defective osteogenesis of the damaged cartilage of the mandibular condyle by the ankylotic process, and also in the loss of muscular guidance over mandibular growth process resulting in severe facial deformity [19,20]. As a consequence of this, patients present with severe maxillofacial alteration that will lead to TMJ ankylosis.…”

Section: Discussionmentioning

confidence: 99%

Management of Extra-Capsular Temporo-Mandibular Joint Ankylosis: Does Conservative Approach to Treatment Have a Role?

Anyanechi

Osunde

Bassey

2014

J. Maxillofac. Oral Surg.

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Background The conventional management of fibrous extracapsular temporo-mandibular joint (TMJ) ankylosis, a debilitating disease, is associated with surgical complications and financial burden on the patients. Objective To assess the outcome of conservative approach to the management of fibrous extracapsular TMJ ankylosis. Patients and methods This is a prospective study of patients who presented at the Dental and Maxillofacial Surgery Clinic of the University of Calabar Teaching Hospital, Nigeria, during the period from January 1999 to December 2012 with a history of inability to open the mouth diagnosed as fibrous extracapsular TMJ ankylosis. Results Twenty-one subjects were treated and their ages ranged from 11 to 22 years with mean at 15.0 years. There were 13 (61.9 %) males and 8 (38.1 %) females with male: female ratio of 1.6:1. The aetiological factor that predisposed to formation of extracapsular TMJ ankylosis was facial trauma. There was no facial asymmetry and the side distribution of the affliction showed that 1 (4.8 %) was bilateral while 20 (95.2 %) were unilateral. Eight cases (38.1 %) were incomplete ankylosis while the rest (n = 13, 61.9 %) were complete. The shorter the duration of fibrous ankylosis and the greater the initial inter-incisal distance before treatment, the better the treatment outcome. Conclusion The outcome of treatment suggests that the conservative approach to management of this condition was beneficial to these patients because they presented early. However, randomized controlled clinical trials are needed to validate this treatment option.

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Temporomandibular joint ankylosis

Abstract: The reconstruction of a permanent functional joint and the provision for correction of any associated deformity are the aims of treatment of temporomandibular joint ankylosis. Methods which merely free the ankylosis, in our opinion, compromise the likelihood of achieving these aims.

Cited by 52 publications

References 7 publications

Treatment of TMJ ankylosis in Jordanian children – a comparison of two surgical techniques

Treatment of TMJ ankylosis in Jordanian children – a comparison of two surgical techniques

Shox2-deficiency leads to dysplasia and ankylosis of the temporomandibular joint in mice

Management of Extra-Capsular Temporo-Mandibular Joint Ankylosis: Does Conservative Approach to Treatment Have a Role?

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