Transcription of Use of Allografts and Chapter 29 Reconstruction of ...
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Use of Allografts and Chapter 29 Reconstruction of ...
1 BACKGROUND An intercalary Reconstruction is defined as replacement ofthe diaphyseal portion of a long bone after segmental skeletalresection (diaphysectomy). Intercalary reconstructions typically result in superior func-tion compared to other limb-sparing procedures because thepatient s own joints above and below the Reconstruction areleft undisturbed. Most intercalary reconstructions are performed with bulkallografts, although various endoprosthetic intercalary pros-theses are available. Allograft reconstructions require osseous healing for long-term stability; initial allograft stability must be obtained withintramedullary nailing or internal fixation. Allografts have a long-term risk of fracture likely related tothe size and type of fixation. Intercalary Allografts are often supplemented with vascular-ized fibular grafts. Endoprosthetic Reconstruction has typically been limited tosmall, central tumors as significant lengths of bone proximaland distal to the lesion are required for successful fixation oftraditional prosthetic stems.
1 BACKGROUND An intercalary reconstruction is defined as replacement of the diaphyseal portion of a long bone after segmental skeletal resection (diaphysectomy). Intercalary reconstructions typically result in superior func- tion compared to other limb-sparing procedures because the
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