Ow Andrew Tjin-Chiew, Cheung Lim Kwong
Faculty of Dentistry, University of Hong Kong.
Ann R Australas Coll Dent Surg. 2008 Jun;19:55-7.
Bilateral sagittal split osteotomies (BSSO) and mandibular distraction ostoegenesis (MDO) have both been applied in the surgical treatment of Class II mandibular hypoplasia. This randomized controlled trial aimed to compare the stability and morbidities of both techniques. From the preliminary data, skeletal relapse seems to be comparable between BSSO and MDO within the first post-operative six months. Objective and subjective neurosensory evaluation showed no significant difference in all mean scores for LT, 2PD and PPPT between both surgical techniques. Localized wound infection was a common post-operative complication for MDO. A greater sample size is required to ascertain which technique is better.
双侧矢状劈开截骨术（BSSO）和下颌骨牵张成骨术（MDO）均已应用于II类下颌骨发育不全的外科治疗。这项随机对照试验旨在比较这两种技术的稳定性和发病率。根据初步数据，在术后的前六个月内，BSSO和MDO之间的骨骼复发情况似乎相当。客观和主观的神经感觉评估显示，两种手术技术在LT、2PD和PPPT的所有平均得分上均无显著差异。局部伤口感染是MDO常见的术后并发症。需要更大的样本量来确定哪种技术更好。
