目的：分析牵引成骨术（Distraction osteogenesis，DO）矫治唇腭裂术后继发颌骨畸形临床效果，探讨其对患者颌骨畸形及语音的影响。方法：分析我院37例采用D O术矫治唇腭裂术后继发颌骨畸形患者资料，观察矫治前、矫治后12个月X线头影变化，并对其矫治后12个月语音效果进行评价。结果：患者矫治后12个月后SNA、G-Sn-Pg’、Ls-E plane、H角显著增加，差异有统计学意义（P＜0.05），其G-Prn显著降低，G-Sn、G-Ls均显著增加，差异有显著统计学意义（P＜0.01）。患者矫治后12个月语音效果优22例，良10例，差5例，优良率86.5%。结论：D O能够有效促进唇腭裂术后继发颌骨畸形患者上颌骨前移，减轻口颌系统继发畸形及功能障碍，保证语音效果、改善面形。%Objective: To analyze the clinical effects of DO (distraction osteogenesis, DO) correction of secondary maxillary deformities following cleft lip and palate surgery, and investigate its impact on the patient’s jaw bone deformity and voice.Methods: 37 cases of using DO in correcting secondary maxillary deformities following cleft lip and palate surgery in our hospital, observed X cephalometric changes before treatment and 12 months later, and evaluated voice quality of their treatment after 12 months.Results: The SNA, G-Sn-Pg ‘, Ls-E plane and angle H in patients were cantly increased 12 months after treatment, and the difference was statistically signiifcant (P<0.05), G-Prn signiifcantly reduced, both G-Sn and G-Ls were ificantly increased, and the differences were statistically significant (P<0.01). 12 months after treatment, good voice effect in 22 cases, fair in 10 cases and poor in 5 cases, good rate of 86.5%.Conclusions: DO can effectively promote maxillary advancement in patients with secondary maxillary deformities following cleft lip and palate surgery; mitigate secondary deformity and dysfunction of stomatognathic system, ensure voice quality, and improve surface shape.
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