A teenager with pain in one knee and a limp A teenage boy presents with knee discomfort and a limp after a recently available fall, describing intermittent pain in the knee going back few months. How should he be investigated and what treatment will he need? Case presentation History A 15-year-old boy presents with remaining knee pain and a limp one week after dropping from his bicycle.About 50 percent the men were provided daily testosterone gel packets, that they rubbed to their skin. The additional men received a placebo gel that contained no medicine. The extensive research was supported by drug manufacturers Solvay Pharmaceuticals Inc. And Abbvie Pharmaceuticals, which provided the testosterone gel. After three years, researchers found that men using testosterone gel had not suffered any additional hardening of their arteries, compared with men utilizing a placebo gel. Researchers utilized hardening of the arteries as a measure since it is among the leading factors behind heart episodes and strokes, Bhasin said. However, the men also hadn’t shown any kind of improvement in their sex lives, researchers said. Their levels of sexual desire, erectile function and general sexual function were a comparable as males taking the placebo.