title: Characteristics of tissue growth into Proplast and porous polyethylene implants in bone.
abstract: (1) Bone does not form within internal pores of undistorted Proplast implants because of the small interconnecting pore size of the material; (2) the nonosseous, fibrous tissue which exists in the pores of Proplast implants in bone is not attached to the surrounding bone (i.e., Sharpey's fibers are not present). The load-bearing support which can be afforded by Proplast implants is limited by the incomplete bone ingrowth along the margins of the material and the tensile strength of Proplast.
mesh_terms: D015502:Absorptiometry, Photon; D000818:Animals; D001672:Biocompatible Materials; D001853:Bone Marrow / Q000033:anatomy & histology; D001842:Bone and Bones / Q000033:anatomy & histology / Q000502:physiology*; D003238:Connective Tissue / Q000502:physiology; D004285:Dogs; D008852:Microradiography / Q000379:methods; D010012:Osteogenesis; D011095:Polyethylenes; D011138:Polytetrafluoroethylene; D011428:Proplast; D013499:Surface Properties; D013718:Tensile Strength; D014945:Wound Healing
chemical_list: D001672:Biocompatible Materials; D011095:Polyethylenes; D011428:Proplast; D011138:Polytetrafluoroethylene