Titanium implants for bone-anchored hearing aids--host reaction.
In a series of 31 prospectively followed patients equipped with bone-anchored hearing aids (BAHA), 7 titanium implants (19.4%) were lost in 6 patients after a median of 42 months (range: 27-78 months), often after visible resorption of bone around the superficial part of the implant. Expressed in a sample life table, no implants were lost during the first 2 years. After 3-4 years, the success rate dropped to about 85% and after 6-7 years to about 75%. Research that aims to define the factors which influence the extrusion rate is needed.
Bonding
P
P
Department of Otolaryngology, Glostrup Hospital, Copenhagen, Denmark.
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006310:Hearing Aids; D006789:Host vs Graft Reaction; D006801:Humans; D008297:Male; D008416:Mastoid / Q000601:surgery*; D008875:Middle Aged; D011446:Prospective Studies; D014025:Titanium / Q000627:therapeutic use*
D014025:Titanium