Complex reconstruction in the management of extremity sarcomas


Curr Opin Oncol. 2003 Jul; 15(4): 304-12
Wodajo FM, Bickels J, Wittig J, Malawer M
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The concept of limb-sparing surgery for bony sarcomas has evolved over the past 25 years. Today, more than 90% of patients treated by surgeons with expertise in musculoskeletal oncology undergo successful limb-sparing procedures. Many large centers have abandoned osteochondral allografts and resection arthrodesis for the reconstruction of segmental bone and joint defects in favor of metallic endoprostheses. Endoprosthesis survival rates now exceed 85% at 5 years for reconstructions about the knee, which is the most common site for primary bone sarcomas. In the shoulder girdle, the type of resection and soft-tissue reconstruction is probably more important than the type of implant. Extra-articular resection is recommended for most large stage IIB tumors. New expandable prostheses able to be lengthened nonoperatively hold promise for very young children with lower extremity sarcomas. Allograft-prosthetic composites and proximal femoral prostheses provide reliable and stable hip reconstructions. Acetabular components are not required, but attention to capsular reconstruction is necessary to prevent hip dislocation. Techniques of scapula replacement have advanced and provide better upper extremity function after scapula resection than resection alone.



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