Penn State Milton S Hershey Medical Center, Bone and Joint Institute, Hershey, PA 17033, USA.
J Am Acad Orthop Surg. 2009 Dec;17(12):744-55. doi: 10.5435/00124635-200912000-00003.
Conventional bone grafts have some osteogenic potential, whereas vascularized bone grafts retain live, functional osteocytes and osteoblasts. High rates of scaphoid union have been achieved with conventional bone grafting in the absence of osteonecrosis or prior surgery. Vascularized bone grafting is valuable in the management of wrist disorders with compromised bone vascularity (eg, scaphoid nonunion with proximal pole necrosis, Preiser disease, Kienböck disease) or when previous grafting has failed. Improved understanding of the vascular anatomy of the wrist has allowed the use of an array of vascularized bone grafts that do not require microsurgical anastomosis. Successful outcome depends on careful patient selection and appropriate surgical technique.
常规骨移植具有一定的成骨潜力,而带血管骨移植则保留了有活力的、功能正常的成骨细胞和破骨细胞。在没有骨坏死或先前手术的情况下,常规骨移植可实现较高的舟状骨愈合率。带血管骨移植对于伴有骨质血供受损的腕部疾病(如舟状骨骨不连伴近极骨坏死、普雷瑟病、克恩病)或先前植骨失败的情况非常有价值。对手腕血管解剖结构的深入了解,使得可以使用一系列不需要显微吻合的带血管骨移植。手术的成功与否取决于患者的选择和适当的手术技术。