[Reconstruction for malignant bone tumor defects by a composite graft--cementless arthroplasty]

Five patients with malignant bone tumor were arthroplastied with Dacron fabric-enveloped prosthesis without using cement after resection of tumor. Usually following the wide resection of the primary lesion, the supporting tissues are always lost. Dacron fabric is intended to act as a scaffold upon which connective tissue can proliferate and form new ligament and supporting soft tissues. Dacron fabric is useful for the repair of ligament, muscles, joint capsule, periosteum, and other supporting soft tissues without significant complications. The lengths of the released supporting tissues are easily adjustable. Biologic fixation of the prosthesis to the soft supporting tissues is successful, then the durability of the prosthesis prolongs. The Dacron fabric is capable of inducing and supporting the ingrowth of vascular connective tissue which becomes stronger thereafter. The author believes that this method provides a stable, functional and esthetically pleasing reconstruction.