Hello, My name is Marina, I m from Johannesburg, South Africa, My grandson who is 6 yrs old was born with Bi-lateral Microtia and has worn a BAHA hearing aid on a band since 6months old. His speech is perfect and he is quite advanced for his age. His inner ear is apparently normal but does not have the outer ear or ear canal. His parents now want to do implants oh the Bone conducted hearing aid.My Questions: How successful are these implants? What is the rejection rate? If rejected - can the implant be redone?Should they rather consider plastic surgery for outer ears with opening of the ear canal? What are the procedures for implants or ear reconstruction?Who should we consult with in Johannesburg. Thanks Marina