What does cystic change of bone mean?

Question 1: What is the meaning of bone cystic lesion? Bone cystic lesion

generally refers to bone cyst

that is, the density of the lesion is low,

the main component is water

Question 2: What is the meaning of navicular bone cystic lesion? The incidence of scaphoid bone fracture and nonunion is high, which affects the function of wrist and joint. Radiographically, the fracture space is widened and the broken end is hardened (the proximal part is completely cystic and necrotic, except for collapse). The scaphoid of the hand is located on the radial side of the proximal row of carpal bones, and its shape is slender. The distal end exceeds the proximal row of carpal bones, and the middle part of the flat-headed bone and the waist are quite far and near the carpal plane. After the waist fracture, the activity between the proximal and distal rows of carpal bones becomes the activity of the fracture line of the scaphoid of the flat hand, which forms shear force and leads to nonunion. The blood supply of scaphoid bone of hand enters from dorsal side through scaphoid crest and from lateral palmar side near scaphoid tubercle. Nearly one-third of them are generally not directly nourished by blood vessels, and most of the blood supply at the proximal end of the fracture is destroyed or even completely lost, which is easy to form nonunion. The position of scaphoid fracture is closely related to the occurrence of nonunion. The closer the fracture line is to the proximal end, the higher the nonunion rate is. In general, 7% of scaphoid fractures are at the waist, 1% ~ 15% are at the tubercle of scaphoid and 1% are at the proximal end of scaphoid. Nodular fractures and distal 1/3 fractures can heal smoothly. Lumbar fractures often do not heal due to misdiagnosis or improper treatment. However, nearly 1/3 fractures have 3% ~ 4% nonunion or osteonecrosis. Local swelling and pain caused by scaphoid fracture is easily misdiagnosed as soft tissue injury. X-ray fracture can't be clearly shown, and it is not fixed early or for a short time. The navicular bone belongs to the inner bone of wrist joint, and most of the bone surface is articular surface. Only the tubercle and dorsal side are attached with ligaments, and nourishing blood vessels grow in. Under normal circumstances, it is in a low circulation state, resulting in a high incidence of nonunion after fracture. The key to treatment lies in rebuilding blood circulation and effective fixation. The scaphoid nonunion ischemia mainly occurs near the fracture end, and the periosteal bone flap should mainly rebuild the blood circulation at the proximal end. Good fixation provides a mechanical environment for fracture healing. During the operation, attention should be paid to the protection of the vascular pedicle of periosteal bone flap, which should be of sufficient length and without tension after transfer. Repairing navicular bone has a better long-term effect than resection or fusion. For patients with negative X-ray film and highly suspected scaphoid fracture, tomography, CT or MRI should be performed to make a definite diagnosis. Those who do the above examination unconditionally should have their forearms fixed with plaster, and their X-rays should be reexamined 2 weeks after the injury. Once the diagnosis is made, it is fixed with cast plaster until the fracture heals.

Question 3: What does cystic change mean? There are many kinds of cystic changes.

Question 4: What kind of disease is cystic change of the right femoral head to provide information is too simple. Cystic change depends on the specific degree and morphological description. As far as what you provide, you can only consider the early manifestations of bone tumor or femoral head necrosis.