Nope, never ever. It's to do with the nature of bone growth. To simplify it, let's talk about a fracture.
If a bone is broken and secured either with a cast or with screws and such, the object of it is to hold the fracture site absolutely secure and in contact, one side against the other. This allows and even encourages the new bone growth to be created between the broken surfaces. Over a period of time, new bone is grown and eventually joins the two surfaces together and the fracture is healed.
However, should this new growth be disturbed, usually by movement, then the healing process is arrested, the surfaces of the bone lose their freshly fractured state and seal, eventually becoming much like the cortical or surface bone. So healing has failed.
In an uncemented hip, the surfaces are now represented by the inside of the bone and the surface of the stem which is coated with a substance called hydroxyapatite which is attractive to new bone cells so the melding oof new bone between the real bone and the stem is allowed to take place.
However, just like fixing a fracture, the two surfaces have to be accurately placed and securely fixed to enable good bone growth. The contradictory issue here is that this bony growth is actually enhanced by longitudinal pumping pressure, such as in walking. The more of this pumping action that occurs, the healthier the ingrowth will be. Hence the contradictory advice about non-weight bearing that some surgeons believe is necessary. (Never could figure that one out myself! But it's a fact)
Now if somewhere in this process there is a problem - either the surgeon has not made sure there is a really tight and accurate fit of the stem in the bone, or there is some other reason this growth is arrested, then the bone will die back and seal over, making it impossible for any further new bone to develop.
Hence the answer to your question is a very definitive 'nope not ever'. Does that answer your question?