The role of the lateral pterygoid muscle in the sagittal fracture of mandibular condyle (SFMC) healing process

Liu, Chng-Kui; Liu, Ping; Meng, Fan-Cheng; Deng, Banglian; Xue, Yan; Mao, Tianqiu; Hu, Kaijin

doi:10.1016/j.bjoms.2011.05.015

Cited by 28 publications

(25 citation statements)

References 20 publications

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“…Furthermore, new bone formation in distraction osteogenesis always responds to the direction of tensile. Since the tensile from the lateral pterygoid muscle is primarily horizontal, this may partly contribute to the horizontal enlargement of the condyle [50-52]. However, distraction osteogenesis is not associated with vertical bone formation of the condyle and thickening of the temporal bone.…”

Section: Introductionmentioning

confidence: 99%

Current concepts in the pathogenesis of traumatic temporomandibular joint ankylosis

et al. 2014

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Traumatic temporomandibular joint (TMJ) ankylosis can be classified into fibrous, fibro-osseous and bony ankylosis. It is still a huge challenge for oral and maxillofacial surgeons due to the technical difficulty and high incidence of recurrence. The poor outcome of disease may be partially attributed to the limited understanding of its pathogenesis. The purpose of this article was to comprehensively review the literature and summarise results from both human and animal studies related to the genesis of TMJ ankylosis.

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Section: Introductionmentioning

confidence: 99%

Current concepts in the pathogenesis of traumatic temporomandibular joint ankylosis

et al. 2014

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“…Articles presenting patients surgically treated for condylar head fractures were identified and included as well as animal experimental studies. [10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27] Data were collected on age, sex, classification, etiology, intervention, management, and complications.…”

Section: Methodsmentioning

confidence: 99%

“…The findings by Long and Goss 20 demonstrate that pathological changes of osteonecrosis, osteoarthrosis, and even ankylosis in the TMJ are likely to occur following vertical intracapsular fractures through the lateral condylar pole. Instead, Liu et al 23 observed the involvement of lateral pterygoid muscle in the healing process of the condylar head: at 24 weeks after diacapitular osteotomy, on CT scan, bone had overgrown the joints in which the muscle had not been cut, and the shape of the joints was less regular than previously. In contrast, the joints in which the muscle had been cut looked almost normal.…”

Section: Experimental Studies On Animalsmentioning

confidence: 98%

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Current Opinions on Surgical Treatment of Fractures of the Condylar Head

Boffano

Benech

Gallesio

et al. 2014

Craniomaxillofacial Trauma & Reconstruction

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Treatment of mandibular condyle fractures is still controversial, with surgical treatment slowly becoming the preferred option. However, fractures of the condylar head (diacapitular fractures) are still treated conservatively at many institutions. Recently, more and more surgeons have begun to perform open treatment for diacapitular fractures because it allows to restore the anatomical position of the fragments and disc, it allows an immediate functional movement of the jaw, and avoid the ankylosis of the temporomandibular joint induced by the trauma. Several techniques have been proposed to reduce and fix fractures of the condylar head, such as standard bone screws, resorbable screws, resorbable pins, and cannulated lag screws. Therefore, the aim of this article is to review the literature about the surgical treatment of fractures of the condylar head to resume the current knowledge about open treatment of such fractures.

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“…High-radiodensity ankylosed bone mass is the main feature of TMJA and results in decreased mouth-opening ability (Yan et al 2011). Although several theories have been proposed to explain the formation of ankylosed bone mass (Norman 1978;Sawhney 1986;Liu et al 2012;Yan et al 2012), the underlying physiopathologic mechanisms remain unclear.…”

Section: Introductionmentioning

confidence: 99%

Osteoclast Deficiency Contributes to Temporomandibular Joint Ankylosed Bone Mass Formation

Xiao

Duan

et al. 2015

J Dent Res

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Ankylosed bone mass in temporomandibular joint ankylosis (TMJA) is an important factor affecting mouth-opening limitation. However, the mechanism underlying the occurrence of ankylosed bone mass remains unknown. Research has shown that osteoblasts and osteoclasts maintain balance in bone remodeling. Thus, we hypothesized that aberrant osteoclastogenesis and osteogenesis may be involved in the occurrence of ankylosed bone mass in TMJA. In this study, we characterized the osteogenesis of bone marrow stem cells and the osteoclastogenesis of myelomonocyte in clinical specimens of TMJA and normal controls. Results showed that, compared with control bone marrow stem cells, TMJA bone marrow stem cells had lower proliferative and osteogenic capacities. The number of osteoclasts in the ankylosed bone mass group dramatically decreased, and myelomonocyte osteoclastogenic potential was impaired. The RANKL/OPG ratio of the ankylosed bone mass group was lower than that of the control group. Thus, our study suggests that osteoclast deficiency may be an important factor affecting bone mass ankylosis.

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The role of the lateral pterygoid muscle in the sagittal fracture of mandibular condyle (SFMC) healing process

Cited by 28 publications

References 20 publications

Current concepts in the pathogenesis of traumatic temporomandibular joint ankylosis

Current concepts in the pathogenesis of traumatic temporomandibular joint ankylosis

Current Opinions on Surgical Treatment of Fractures of the Condylar Head

Osteoclast Deficiency Contributes to Temporomandibular Joint Ankylosed Bone Mass Formation

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