问题：在患有膝关节剥脱性骨软骨炎（OCD）的患者中，自体骨软骨移植（OAT）是否比微骨折术更有效？
Question: In children with osteochondritis dissecans (OCD) injuries of the knee, is osteochondral autologous transplantation (OAT) more effective than microfracture?
别一方面，自体骨移植是通过连接段的软骨内骨化和移植表面的骨膜成骨愈合。
Autografts on the other hand heal by endochondral ossification at these interfaces, and by membranous bone formation along the graft surface.
组织形态测定显示，同种异体移植和同系移植比自体移植在骨连接处软骨形成较少。
Histomorphometry showed that there was less new endochondral bone formation over the "graft" side of the host-graft junction in allograft and isograft samples than in autografts.
最初引文摘要：自体软骨细胞移植治疗距骨骨软骨缺损（2006；88：303-8）。
ORIGINAL ABSTRACT CITATION: "Autologous Chondrocyte Transplantation for Treating Cartilage Defects of the Talus" (2006; 88:303-8).
方法：本手术通过凿断鼻骨及部分上颌骨额突揿压折断使其耸立以抬高鼻背和移植自体鼻中隔软骨以增高鼻尖或鼻翼，一次性完成鼻外形的整体修复。
Methods: the operation procedure included frustration and elevation of the nasal bone and part of the forntal process of maxilla and replacement of the nasal septum between greater alar cartilages.
方法：本手术通过凿断鼻骨及部分上颌骨额突揿压折断使其耸立以抬高鼻背和移植自体鼻中隔软骨以增高鼻尖或鼻翼，一次性完成鼻外形的整体修复。
Methods: the operation procedure included frustration and elevation of the nasal bone and part of the forntal process of maxilla and replacement of the nasal septum between greater alar cartilages.
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