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International Journal of Adult Orthodontics and Orthognathic Surgery

Year 1994
Volume 9 , Issue 3

Pages: 233 - 240

Condylar resorption in orthognathic surgery: A retrospective study

De Clerq/Neyt/Mommaerts/Abeloos/De Mot

A retrospective study was performed to examine the occurence of condylar atrophy in connection with orthognathic surgery. Patients with high-angle mandibular deficiency (n = 29) were selected from among those who underwent bimaxillary osteotomy (n = 93) during the period from January 1987 through December 1990. This group of 29 was exami ned for shortening of the ascending ramus of the mandible because of condylar resorption. In 9 of these 29 (31%), the ramus had resrobed more than 2 mm, or more than 6% of the total length of the ramus. All 9 of these patients were female. There was no correlation between resorption and age, the amount of retrognathism, or the presence of preoperative temporomandibular joint dysfunction. Female patients with high-angle retrognathism should be informed of the possibility of postoperative condylar resorption and should be followed with radiographic controls for at least 2 years after surgery.


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