Complete loss of hand function

Introduction The clinical manifestations of complete loss of hand function are: finger chondrocarcinoma can grow so much, so that the function of the hand is completely lost, except for the phalanx, pathological fractures in other parts are rare.

Cause

The cause of this disease is unknown. It is a congenital malformation, no hereditary and family history. It has been suggested that chondrocytes that may remain in the bone during the embryonic period do not mature properly, and later bones grow, but they remain in the metaphysis and retain the ability to proliferate. Under appropriate conditions, it develops into a cartilage mass or a cartilage column. This disease is rare. Men are slightly more than women, and they develop in childhood or adolescence.

an examination

Related inspection

Bone and joint and soft tissue CT examination of biceps reflex

First, clinical manifestations:

There is generally no abnormal performance at birth. In the growing season, it occurs in the metaphyseal end of long bones that grow actively, such as the upper and lower knees, the lower end of the radius and the upper end of the humerus, and the hand, especially the phalanx, is the most common part. In the pelvis is good for sputum. Elbow joints are less common. Asymmetric limb shortening due to epiphyseal growth, with varus or valgus deformity. The humerus is long and curved, causing dislocation of the humeral head. Finger chondromatosis can grow very large, so that the function of the hand is completely lost. In addition to the phalanx, pathological fractures in other parts are rare.

Second, diagnosis

If diagnosed from a local single lesion, it is difficult to distinguish it from endogenous chondroma; but if it is comprehensively examined, the diagnosis is not difficult. For suspicious patients, it is often helpful to take two-handed X-rays. The diagnostic criteria are as follows:

1 onset in early childhood.

2 multiple lesions, mostly at the ends of long bones.

The biopsy of the 3X line translucent area was cartilage tissue.

Differential diagnosis

First, clinical manifestations:

There is generally no abnormal performance at birth. In the growing season, it occurs in the metaphyseal end of long bones that grow actively, such as the upper and lower knees, the lower end of the radius and the upper end of the humerus, and the hand, especially the phalanx, is the most common part. In the pelvis is good for sputum. Elbow joints are less common. Asymmetric limb shortening due to epiphyseal growth, with varus or valgus deformity. The humerus is long and curved, causing dislocation of the humeral head. Finger chondromatosis can grow very large, so that the function of the hand is completely lost. In addition to the phalanx, pathological fractures in other parts are rare.

Second, diagnosis

If diagnosed from a local single lesion, it is difficult to distinguish it from endogenous chondroma; but if it is comprehensively examined, the diagnosis is not difficult. For suspicious patients, it is often helpful to take two-handed X-rays. The diagnostic criteria are as follows:

1 onset in early childhood.

2 multiple lesions, mostly at the ends of long bones.

The biopsy of the 3X line translucent area was cartilage tissue.

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