Yih W Y, Zysset M, Merrill R G
Department of Oral and Maxillofacial Surgery, Oregon Health Sciences University, Portland 97201.
J Oral Maxillofac Surg. 1992 Sep;50(9):964-7; discussion 968. doi: 10.1016/0278-2391(92)90056-6.
Biopsies of 30 autogenous auricular cartilage grafts previously placed in 21 patients with ankylosis and arthropathy of the temporomandibular joint were studied. These joints were reoperated because of persistent pain and limitation of motion. Histologically, all grafts showed viability of the cartilage. Eighteen cartilage grafts placed after Proplast (Vitek, Inc, Houston, TX) or Silastic (Dow Corning, Midland, MI) implants had been removed, all showed foreign-body granuloma with coexistent intact cartilage grafts. This indicated that the autogenous auricular cartilage was resistant to the foreign-body reaction. All cartilage grafts were encased by fibrous tissue. This overgrowth of fibrous tissue may be responsible for the ankylosis. Seven grafts showed cartilaginous proliferation grossly and all showed proliferation histologically. The cartilage proliferation also may contribute to the persistent symptoms and recurrent limitation of joint motion.
对先前植入21例颞下颌关节强直和关节病患者体内的30块自体耳廓软骨移植物活检标本进行了研究。这些关节因持续疼痛和活动受限而再次手术。组织学上，所有移植物的软骨均显示存活。在已取出Proplast（Vitek公司，得克萨斯州休斯顿）或硅橡胶（道康宁公司，密歇根州米德兰）植入物后植入的18块软骨移植物中，均显示有异物肉芽肿，同时存在完整的软骨移植物。这表明自体耳廓软骨对异物反应具有抵抗力。所有软骨移植物均被纤维组织包裹。这种纤维组织的过度生长可能是导致关节强直的原因。7块移植物大体上显示软骨增生，组织学上均显示增生。软骨增生也可能是导致持续症状和关节活动反复受限的原因。
