1. The calcaneal internal rotation ( adduction ) and plantar flexion is the key deformity. 2. Most recently, Balbus has been working on a theory of the Sun's internal rotation . 3. This is flexion and internal rotation of the hip. 4. Active and passive movements may be limited because of pain, especially abduction and internal rotation . 5. The test is performed by slowly extending the knee from 90 degrees, maintaining internal rotation . 6. The meniscotibial ligament acts to secondarily stabilize internal rotation . 7. Hip external and internal rotation laterally and medially moves the femur in the transverse plane, respectively. 8. Often the range of motion in the hip is restricted in internal rotation , abduction, and flexion. 9. The greatest displacement of the meniscus is caused by external rotation, while internal rotation relaxes it. 10. Hip motion will be limited, particularly internal rotation .