Despite all that he has been through in the past (Pinning of fracture, trochanteric advancement, leg length differential (stopped the growth plates) and impingement in effort to delay this, it did buy some time. Usually, after the past surgeries, he was non-weight bearing for months. Idiopathic juvenile osteoporosis causes fracturing easily. He will be coming home from hospital - no rehab. Ceramic on Ceramic recommended. Very concerned about just how long he might have this new hip. I do know at least it will not hurt like it does now. He now has the long term effects of IJO - Pain of : very flat feet esp when walking, back pain from past compressions, beginning of upper spinal curve, and limp from LLD.