M12.15: Kaschin-Beck disease Pelvic region and thigh

You have a joint disorder in your pelvis or your hip.

The pelvis is made up of different bones. There are 3 bones on each side which each merge to form one large pelvic bone. A joint connects these two large pelvic bones to the sacrum at the back of the body. The sacrum is part of the lower spine. The two pelvic bones plus the sacrum form a bony pelvic ring or girdle. In front, the two pelvic bones are tightly joined to one another by ligaments and cartilage fiber. The hip joints are outside, to the side of the pelvis. They connect the pelvis to the thighbones. The hip joints enable the legs to be moved in different directions.

You have a longstanding joint disorder. With this disorder the bones and joints do not grow normally. The joints can become deformed as a result. Moreover, the person may not grow normally and may be too small for their age. The precise cause of the condition is not known.