Wardrop R W, Wolford L M
Baylor College of Dentistry, Dallas.
J Oral Maxillofac Surg. 1989 Apr;47(4):336-42. doi: 10.1016/0278-2391(89)90333-9.
The stability of results using bone plates for skeletal stabilization and porous block hydroxyapatite implants as a bone graft substitute were evaluated in maxillary downgrafts, maxillary advancements, and modified LeFort III midface advancements. The records of 24 patients with greater than 5 mm of forward or downward movement were evaluated cephalometrically, analyzing the presurgical, immediate postsurgical, and longest follow-up radiographs. The 11 maxillary downgraft, 14 maxillary advancement, and three midface advancement procedures all showed less than 1 mm of relapse. Biopsies of the porous block hydroxyapatite grafts were taken on six patients in this study at 6 to 10 months postsurgery. All showed connective tissue ingrowth and 11.3% to 36.1% bone ingrowth throughout the pores of the implants, and no inflammatory response.
在对上颌骨下移、上颌骨前移和改良LeFort III型面中部前移手术中，评估了使用接骨板进行骨骼固定以及使用多孔块状羟基磷灰石植入物作为骨移植替代物的效果稳定性。对24例有大于5毫米向前或向下移动的患者记录进行了头影测量评估，分析了术前、术后即刻和最长随访期的X线片。11例上颌骨下移、14例上颌骨前移和3例面中部前移手术的复发均小于1毫米。本研究中，在术后6至10个月对6例患者的多孔块状羟基磷灰石移植物进行了活检。所有结果均显示植入物孔隙内有结缔组织长入以及11.3%至36.1%的骨长入，且无炎症反应。
