I know of two EOD technicians that lost legs at the knee, and one EOD officer that lost his thumb–all three to IED techs. The two amputees have prosthetic and have been at their old job for the past five years, to include deployments. The Officer continued his work too, and just returned from his last deployment.
Like Bear_Nenno says, a MEB will take place. They will evaluate the injuries, the ability to recover, the critical nature (and manning) of the MOS/AFSC, and any accomodating features.
The amputees stayed in. But I lost a solid guy to an MEB because he’d had to have two discs in his back fused together from one simple truck accident.
Come in with a disability–no. Retain you with one–depends.