DISORDERS OF THE KNEECAP
Therapy & Investigation
Disease: The kneecap slides on the joint surface on the lower anterior part of the femur. The basis of this disease is that the kneecap does not fit into the riffle-shaped joint surface of the femur due to a congenital axis deviation of the femur. The joint surfaces become soft due to the pathological increase of the load. Former injuries, fractures of the kneecap and kneeling professions may also result in this state.
Symptom: Sudden, sharp pain or even almost joint lock occurs at the kneecap when standing up after a longer period of motionless sitting. A shooting pain may occur associated with some specific types of movements, even at a very young age. Patients often feel “cracking” in their knees when walking on stairs.
Treatment: Mainly a special physiotherapy program may bring relief. Using a surgical fiberscope (arthroscopy) and a special shaver, rugged cartilage surfaces can be made even, the position of the kneecap can be corrected with plastic surgery performed on the joint capsule or with transposition of some specific tendons, and furthermore the sliding surface can be made smoother with cartilage transplantation harvested from a non-weight-bearing area.