Osteochondrosis

Osteochondrosis is a non-inflammatory disease of ossification of articular cartilage and patellar cartilage. The common osteochondrosis in clinic are as follows: ① Separated osteochondrosis: abnormal thickening and cracking of articular cartilage, and then separated from the subchondral bone, forming cartilage flaps or free cartilage pieces. It is mainly found in the shoulder joint (back edge of the arm bone head), elbow joint (brain condyle), knee joint (femoral condyle), and sacroiliac joint (talar block). ② The elbow process is not closed: The ossification center of the elbow process and the proximal end of the ulna are not closed for a long time (the epiphyseal growth plate cartilage is not ossified), which makes the elbow joint unstable and is easy to secondary to elbow joint osteoarthritis. ③ Coronoid rupture of ulna: The ulna coronoid divides into several pieces without healing with ulna, which can easily induce osteoarthrosis. ④ Ossification of the zygomatic growth plate: The secondary ossification center of long bones, such as the ossification of the distal ulnar ossification center, is delayed, causing the growth to be out of sync with the radius, leading to angular deformity of the radius or subluxation of the elbow joint.

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