High condylectomy versus proportional condylectomy: is secondary orthognathic surgery necessary?. Issue 1 (January 2016)

• Record Type: Journal Article
• Authors: Fariña, R.; Olate, S.; Raposo, A.; Araya, I.; Alister, J.P.; Uribe, F.
• Is Part Of: International journal of oral & maxillofacial surgery. Volume 45:Issue 1(2016:Jan.)
• Page Start: 72
• Page End: 77
• Publication Date: 2016-01
• Subjects: facial asymmetry -- mandibular condyle -- condylectomy -- low condylectomy -- high condylectomy -- proportional condylectomy -- condylar hyperplasia -- hemimandibular elongation -- hemimandibular hypertrophy -- orthognathic surgery; Mouth -- Surgery -- Periodicals; Maxilla -- Surgery -- Periodicals; Dentistry -- Periodicals; Dentistry, Operative; Oral Surgical Procedures; Surgery, Oral; Dentistry; Maxilla -- Surgery; Mouth -- Surgery; Electronic journals; Periodicals; 617.52059
• DOI: 10.1016/j.ijom.2015.07.016
• Languages: English
• ISSNs: 0901-5027

Abstract

Abstract: The objective of this study was to assess the need for secondary orthognathic surgery in patients undergoing two different condylectomy protocols for active unilateral condylar hyperplasia (UCH). A retrospective cohort study evaluated UCH patients treated by condylectomy. Two groups were established: group 1 comprised those who had undergone a high condylectomy (5 mm removed) and group 2 comprised those who had undergone a proportional condylectomy (removing the difference observed between the measurements of the hyperplastic and the healthy side). Data analysis was done with the Levene test and t -test; a P -value of <0.05 indicated a statistically significant relationship. Forty-nine patients, with an average age of 19.83 years, were analyzed; 11 were included in group 1 and 38 in group 2. There was no statistical difference between the two groups with regard to age or sex ( P = 0.781). An average of 5.81 mm was removed in the high condylectomy group, while an average of 9.28 mm was removed in the proportional condylectomy group; this difference was statistically significant ( P = 0.042). Comparing the two groups, proportional condylectomy reduced the need for secondary orthognathic surgery ( P < 0.001). The proportional condylectomy can be used as the sole surgical treatment in cases of UCH, thus avoiding the need for secondary orthognathic surgery.