- See: 
- General Discussion of Bone Scans: 
- Bone Scans in THR:
- Discussion: 
- evaluation of of porous coated prosthesis may require a different interpretation from cemented THR; 
- bone & fibrous tissue ingrowth into porous acetabular & intertrochanteric surfaces may cause findings unrelated to complications; 
- with loosening there is little inflammation and, therefore, the first two phases of the bone scan are normal; 
- even culture of material taken at operation, which microscopically shows presence of infected material, fails to grow microorganisms in up to 10% of cases