Effects of direct currents on bone growth into delrin implants.
The delrin Bone Growth Chamber (BGC) which is a dividable implant, was inserted in its assembled form in the tibial metaphysis of the rabbit. The BGC allows a numerical estimation of the bone growth into the implant, based on microradiography and microdensitometry that permits evaluation of direct current (DC) effects on bone regeneration. A test chamber was inserted in one tibia and was stimulated with either 5, 20 or 50 microA for three weeks, while on the contralateral side of the same animal, a control implant was inserted under identical conditions as the test, but was not stimulated. The results showed a significant increase of bone growth with 20 and 50 microA and a tendency towards more bone formation with 5 microA.
D000818:Animals; D001846:Bone Development; D001842:Bone and Bones / Q000033:anatomy & histology / Q000378:metabolism; D003720:Densitometry; D004558:Electric Stimulation; D004560:Electricity; D005260:Female; D006132:Growth Plate / Q000502:physiology*; D008297:Male; D008903:Minerals / Q000378:metabolism; D019736:Prostheses and Implants; D011817:Rabbits; D012117:Resins, Synthetic
D008903:Minerals; D012117:Resins, Synthetic; C010102:delrin