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KMID : 0386219970090010026
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Journal of Korean Academy of Craniomandibular Disorders
1997 Volume.9 No. 1 p.26 ~ p.36
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Surgical treatment of benign condylar hyperplastic lesions of mandible via transoral approach by means of SSRO
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김명진
정일혁/이종환/김영연
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Abstract
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Benign condyiar hyperplastic lesions are developed relatively rare but may cause functionally very serious conditions characterized by a slow developing, progresssive enlargement of the condyle or elongation of the mandibular condyiar neck resulting in malocclusion, articular dysfunction, facial asymmetry, and mandibular deviation when it involves in unilateral side. Unilateral condyiar hyperplasia and benign osseous or cartilargenous tumors like osteoma or chondroma are representative benign condyiar hyperplastic lesions of mandible. The etiology of unilateral condyiar hyperplasia is obscure. This condition generally observed in patients ranging between 10 and 30 years.
Based on histopathological criteria, a classification of active and inactive hyperplasia has been proposed. Quantifying the uptake of radioisotope on bone scan is useful method to determine the hyperplastic activity, and CT scanning is helpful for differential diagnosis of these lesions. Condylectomy is the preferred treatment for the active cases of condyiar hyperplasia and tumor resection and condyiar reshaping or reconstruction is the necessary method for benign neoplastic lesions. Complementary mandibular or maxillary osteotomies may be necessary in cases with severe facial deformity. We tried to perform tumor resection or condylectomy and condylar reshaping through transoral approach by means of sagital split ramus osteotomy(SSRO).
We present five cases of hyperplastic or neoplastic lesions which showed facial asymmetry and malocclusion, and introduce our method of transoral approach for treatment of these lesions.
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