Pain at the attachment of the patellar tendon to the patella can often be due to the condition known as Sinding-Larsen-Johansson Disease. This condition is most often noticed during a growth spurt early in the second decade of life. There is a higher prevalence in boys, but this may be due to a greater involvement in sport.
Usually the kneecap sits in a groove at the end of the femur, sliding up and down on a smooth surface as the knee bends and straightens. Pain may occur if this lining is damaged or an imbalance in the muscles develops, pulling the kneecap onto one surface more than the other (lateral tracking). This can lead to irritation of the underside lining of the kneecap and cause pain.
Pain at the attachment of the quadriceps tendon to the tibia can often be due to the condition known as Osgood-Schlatters Disease. This condition is most often noticed during a growth spurt early in the second decade of life.
The meniscus are made up of tough cartilage that cushion the knee joint. The medial meniscus rests on the medial plateau of the tibia, and the lateral meniscus rests on the lateral plateau. The menisci help to distribute the weight evenly through the joint.
In 2009 Ericsson et al studied the effects of functional exercises on performance and muscle strength after meniscectomy, they reported that 4 years after meniscectomy many people still had muscular and functional deficits.
Even though pain at the back of thigh can be due to the Sciatic nerve, the reality is that pain in this area is often due to a number of other causes such as pain directly from your back, muscle strain of the glutes or hamstrings and even trigger points or muscle tension.