Figure 4
From: Hybrid SPECT/CT for the assessment of a painful hip after uncemented total hip arthroplasty
Example of physiological tracer uptake in THA. 77-year old male patient with a diaphyseal fixating stem of the right hip, suffering from pain in the right hip. C) shows the stem in varus position and a radiolucent line (stress shielding) in Gruen zone 1. A), B) and D) show increased bone metabolism in the greater trochanter. This represents physiological enhancement and is consistent with the grading F2,1. After further investigations a spine-related cause of the pain was diagnosed via MRI.