[The evaluation of the properties of the silicone-rod and tissue reation after 5,5 years period of implantation].
In this study we presented a case of prolonged detention of the temporary flexor tendon prosthesis after implantation in the hand. The silicone-rod removed after more than 5 years was subject to an examination: scanning microscopy, measurement of hardness, scanning differential calorimetry, spectroscopy in infra-red and resistance examinations. The obtained results were compared with a findings after examinations of the new, not used silicone-rod. The greatest changes were observed in maximum value of tensile strength (sigmaB) of the material after test of uniaxial tensile tests, which was about 30% smaller for a silicone-rod after implantation. The other result of investigations didn't reveal an important differences between a new and a used rod. The comparison of the tissue reaction was performed by collection a part of sheath in described case and a part of sheath produced around a rod after 10 weeks period of implantation. The generation of a capsules consisted of fibrous connective tissue with concomitant inflammation process was observed in both cases in histopathological view. Silicone rubber is a material which preserve its most important properties even after prolonged period of implantation.
Gosk
Jerzy
J
Katedra i Klinika Chirurgii Urazowej i Chirurgii Reki Akademii Medycznej we Wrocławiu.
Podrez-Radziszewska
Marzena
M
Szotek
Sylwia
S
Rabczyński
Jerzy
J
Reichert
Pawel
P
Urban
Maciej
M
Wlacek
Roman
R
Knakiewicz
Monika
M
D000328:Adult; D001672:Biocompatible Materials; D003238:Connective Tissue / Q000473:pathology*; D020878:Device Removal; D005549:Foreign-Body Reaction / Q000473:pathology*; D006801:Humans; D008297:Male; D019736:Prostheses and Implants; D012828:Silicones; D013708:Tendon Injuries / Q000601:surgery; D013718:Tensile Strength; D013997:Time Factors
D001672:Biocompatible Materials; D012828:Silicones