Watzinger F, Ewers R, Millesi W, Kirsch A, Glaser C, Ackermann K L
University Clinic for Maxillofacial Surgery, Medical School, University of Vienna, Austria.
Int J Oral Maxillofac Surg. 1996 Dec;25(6):424-9. doi: 10.1016/s0901-5027(96)80076-2.
Fourteen patients with Class VI resorption of the maxilla were treated with horseshoe Le Fort I osteotomy. In 11 cases, the procedure was followed by the placement of endosteal implants. In six patients, simultaneous placement of implants was carried out, while in five patients this was done in a second procedure. Ten patients wore their implant-supported dentures. In one patient, 5/8 implants were lost due to nonintegration. Three patients lost one implant each. The total number of implants placed was 76, and the survival rate of the implants was 88.1%. In the one-step procedure (n = 42), the survival rate was 84.8%; in the two-step procedure (n = 34), 92.3%. In comparison of the one-step to the two-step procedure, there was no statistically significant difference (P > 0.11) between the amount of marginal peri-implant bone loss and the condition of the peri-implant soft tissues as measured 2 years after implantation.
14例上颌骨VI类吸收患者接受了马蹄形Le Fort I截骨术治疗。11例患者术后植入了骨内种植体。6例患者同时植入种植体，5例患者在二期手术中植入。10例患者佩戴了种植体支持的义齿。1例患者因种植体未整合导致5/8种植体丢失。3例患者各丢失1枚种植体。共植入种植体76枚，种植体存活率为88.1%。一期手术（n = 42）的存活率为84.8%；二期手术（n = 34）的存活率为92.3%。比较一期手术和二期手术，植入后2年测量的种植体周围边缘骨吸收量和种植体周围软组织状况之间无统计学显著差异（P > 0.11）。
