41-year-old male that in the past decade had suffered 2-3 times a year from bilateral knee pain which resolved spontaneously. Last year he had episodes of thumb pain that had lasted for several weeks and had affected grasp movements. The patient had responded to NSAID treatment for 2 weeks. MRI of the right knee showed Mild endoarticular effusion in the sub-quadriceps recess, chondropathy of the femoropatellar joint and lesion of the medial meniscus.

51-year-old female with vitamin D deficiency and incompatibility between the PTH and vitamin D levels. She reports that as a child she had numerous cavities in her jaw, and her daughter also had multiple tooth fillings. She wonders whether the reason could be genetic abnormality.

65-year-old female that suffers from pain in the left knee underwent examinations that showed femoral-tibial arthrotic manifestations, external degenerative meniscal tear and moderate joint effusion. A diagnosis of external degenerative meniscal tear was established. Further medical tests showed marked degeneration of the meniscal fibrocartilage, diffuse femoral-tibial arthrotic abnormalities, subchondral cysts and edema of the spongious bone, as well as rarefaction of the cartilage matrix, and manifestations of chondropathy.

47-year-old male has injured his right wrist while playing football 30 years ago. He always had some manageable pain while playing tennis. The pain increased during the last 12 months, and following this, MRI studies were performed. They revealed wrist Diastasis between scaphoid and semilunar bone in agreement with a lesion of the scapholunate ligament and pronounced radioscaphoid arthrotic manifestations. In the expert's opinion, the patient is suffering from post traumatic osteoarthritis of radio-carpal joint brought upon by ligamentous injuries due to trauma.

47-year-old male has injured his right wrist while playing football 30 years ago. He always had some manageable pain while playing tennis. The pain increased during the last 12 months. The wrist CT scan that the expert recommended revealed diastasis between scaphoid and semilunar bone, palmar dislocation, dorsal intercalated segmental instability (DISI), marked radio-scaphoid arthritis and reactive sclerosis of the subchondral bone. This findings conformed the previous diagnosis of post traumatic osteoarthritis of radio-carpal joint brought upon by ligamentous injuries due to trauma.