Pre- and postimplantation dynamic mechanical properties of silastic HP-100 finger joints.
Dynamic mechanical properties of Silastic HP-100 finger joint implants were studied. Sixteen sections of unimplanted and 14 sections of retrieved implants were analyzed with standard thermal analysis techniques. Results show that implantation does not alter the viscoelastic properties of Silastic HP-100 elastomers. The authors conclude that fracture of Silastic HP-100 implants cannot be attributed to changes in rheologic properties of the implanted elastomer.
Naidu
S H
SH
Department of Orthopaedic Surgery, Pennsylvania State University, Hershey, USA.
Graham
J
J
Laird
C
C
D000818:Animals; D001696:Biomechanical Phenomena; D001862:Bone Resorption / Q000209:etiology; D004548:Elasticity; D004577:Electron Probe Microanalysis; D005384:Finger Joint; D006614:Hindlimb; D007595:Joint Prosthesis / Q000009:adverse effects; D008422:Materials Testing; D011474:Prosthesis Design; D011475:Prosthesis Failure; D011817:Rabbits; D012212:Rheology; D012826:Silicone Elastomers; D012828:Silicones / Q000032:analysis; D013314:Stress, Mechanical; D000074402:Synovectomy; D013583:Synovial Membrane / Q000473:pathology; D014025:Titanium / Q000032:analysis; D014783:Viscosity
D012826:Silicone Elastomers; D012828:Silicones; D014025:Titanium