关键词: Alloplastic condyle implant Childhood Dentinogenic ghost cell tumour Temporomandibular joint Total temporomandibular joint prosthesis

来  源:   DOI:10.1007/s12663-023-01874-y   PDF(Pubmed)

Abstract:
UNASSIGNED: Although the uncommon dentinogenic ghost cell tumour (DGCT) is a benign entity, it possesses the ability to cause widespread destruction of the jaws and to recur after bone-preserving therapy. Hence, clear margins should be achieved upon surgery, and reconstruction techniques must often be used to restore osseous defects. However, this can be challenging in cases with involvement of the temporomandibular joint (TMJ), and especially in children.
UNASSIGNED: We present a case of a DGCT in a 12-year-old boy with wide infiltration of the mandible and the TMJ. A two-staged reconstructive approach was performed. Upon primary surgery, tumour-free margins were obtained and mandibular anatomy was restored using an iliac crest graft and an alloplastic condyle implant for temporary TMJ reconstruction. In a second step 5 months later, having received a customized TMJ prosthesis consisting of a fossa and a condyle component, the TMJ was completely replaced for definitive reconstruction.
UNASSIGNED: A customized TMJ prosthesis could be a solution for reconstruction of the TMJ in children. However, the further course with respect to growth disturbances must be evaluated upon short-term follow-ups and might require additional corrective interventions.
摘要:
尽管不常见的牙源性鬼细胞瘤(DGCT)是一种良性实体,它具有引起颌骨广泛破坏并在保留骨治疗后复发的能力。因此,手术后应达到清晰的边缘,重建技术必须经常用于修复骨缺损。然而,在涉及颞下颌关节(TMJ)的情况下,这可能是具有挑战性的,尤其是儿童。
我们介绍了一个12岁男孩的DGCT病例,下颌骨和TMJ广泛浸润。进行了两阶段的重建方法。在初次手术时,获得了无瘤边缘,并使用a骨移植物和同种异体髁植入物修复了下颌骨解剖结构,以进行临时TMJ重建。在5个月后的第二步中,收到了由窝和髁组件组成的定制TMJ假体,TMJ被完全替换为最终的重建。
定制的TMJ假体可能是儿童TMJ重建的解决方案。然而,关于生长障碍的进一步过程必须在短期随访中进行评估,并且可能需要额外的纠正干预措施。
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