Fate of Free Fat Dermis Graft in TMJ Interpositional Gap Arthroplasty: A Long Term MRI Study

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• 作者：A. Thangavelu ; S. Thiruneelakandan…
• 关键词：Temporomandibular joint ; Ankylosis ; Temporomandibular joint gap arthroplasty ; MRI ; Dermis ; fat graft
• 刊名：Journal of Maxillofacial and Oral Surgery
• 出版年：2015
• 出版时间：June 2015
• 年：2015
• 卷：14
• 期：2
• 页码：321-326
• 全文大小：903 KB
• 参考文献：1.Dimitroulis G, Trost N, Morrison W (2008) The radiological fate of dermis-fat grafts in the human temporomandibular joint using magnetic resonance imaging. Int J Oral Maxillofac Surg 37:249鈥?54View Article PubMed
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• 作者单位：A. Thangavelu (1)
  S. Thiruneelakandan (1)
  C. Hari Prasath (1)
  Dhruba Chatterjee (1)
  
  1. Division of OMFS, Rajah Muthiah Dental College and Hospital, Annamalai University, Chidambaram, India
  
• 刊物主题：Oral and Maxillofacial Surgery; Dentistry; Otorhinolaryngology; Plastic Surgery;
• 出版者：Springer India
• ISSN：0974-942X

文摘

Introduction Free fat dermis graft is a good interpositional material for TMJ gap arthroplasty. Analysing the fate of the graft by magnetic resonance imaging (MRI) images helps in excellent visualization of both bony and soft tissue anatomy of the operated TMJ joint as well as in assessing the changes in dermis graft which was previously placed. Purpose of this Study To investigate the radiological fate of the dermis-fat graft within the TMJ using MRI. Materials and Methods Five joints of five patients who had dermis-fat grafts placed in their TMJ following gap arthroplasty were recruited for this study. Each patient had undergone TMJ gap arthroplasty with immediate dermis-fat graft placement. All the patients are then subjected to MRI. Results Fat graft was identified in close proximity to the mandibular condyle in all cases, with only three joints demonstrating fat covering the entire articular surface of the mandibular condyle. In the remaining joints the interpositional material found in the MRI defined joint space with mainly grey appearance, suggesting tissue change to other than fat, i.e. scar or granulation tissue. Conclusion When free fat dermis graft is placed as interpositional material the graft occupied the entire TM joint and prevented it from recurrent ankylosis. The graft placed aids in normal functioning of the temperomandibular joint without any complications.