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Wang Cheng Lin
Orthopedics
About me
Having worked in orthopedic clinical practice for over ten years, he is a committee member for the Asia-Pacific Foot and Ankle Chinese District.
Proficient in diseases
Specializes in treating foot and ankle injuries and diseases.
Voices
What are the symptoms of osteosarcoma?
Symptoms of Osteosarcoma: The first is pain at the site of occurrence. This pain may be intermittent and not very pronounced in the early stages. As the condition progresses, the severity of the pain gradually increases, transitioning from intermittent to persistent pain; The second is the formation of a lump. You can feel a lump on the limb with your hand, and this lump is clearly tender to the touch; The third is limping, which is mainly caused by the pain in the limb; The fourth is the most common systemic symptoms. Patients with this malignant tumor will exhibit fever, weight loss, anemia, and pathological fractures. These are the main symptoms of osteosarcoma currently observed in clinical settings.
What should I do if I have a knee ligament injury?
Ligament injuries in the knee are commonly seen in two areas: the first is the anterior cruciate ligament (ACL) injury, and the second is the medial collateral ligament (MCL) injury. The treatment for these two ligament injuries is the same; for instance, in cases of just a simple ligament tear or partial tear, it only requires the use of a plaster cast for external fixation, and immobilization for three to four weeks can achieve recovery. If there is a complete tear, surgery might be needed. There are two types of surgeries: the first one involves direct repair of the ligament, the second involves using autologous tendons to reconstruct the ligament, restoring the stability of the entire knee joint. To determine whether you have a tear, complete tear, or partial tear, it is necessary to undergo an MRI of the knee to confirm.
What are the symptoms of lumbar disc herniation?
The early symptoms of lumbar disc herniation mainly include back pain and limited mobility. With appropriate conservative treatment at this stage, the symptoms will not worsen. For example, sleeping on a hard bed, resting adequately, and using some physical therapy methods can help alleviate back pain and restricted mobility. If back pain and mobility limitations occur and are not treated correctly, it may lead to mid-to-late-stage symptoms. The patient will typically experience sciatica, with radiating pain and numbness in both lower limbs, caused by the herniated disc compressing the nerve root, leading to impaired nerve function and symptoms of numbness and pain in the lower limbs.
Do benign osteosarcomas use chemotherapy?
First of all, all osteosarcomas are malignant; osteosarcoma is a type of malignant tumor with no benign variant. Regarding the treatment of osteosarcoma, the first step is chemotherapy. After confirming the diagnosis through pathological examination and confirming it is osteosarcoma, The first step is chemotherapy, which can stabilize the tumor cells; Then, the main tissue is surgically removed, as well as the surrounding infiltrated soft tissue; The third step is to use chemotherapy again to eliminate the residual cancer cells. This treatment protocol of chemotherapy-surgery-chemotherapy is currently the most common and advanced method in the country. It can significantly improve the patient's survival rate, reduce the risk of amputation, and can also prevent the recurrence of osteosarcoma.
The common sites of osteosarcoma
Osteosarcoma commonly occurs in the long tubular bones of the limbs, such as the femur, tibia, and humerus, especially near the joints of these long bones where the incidence is highest. In children, the distal femur and proximal tibia account for about three-quarters of all bone tumors. Osteosarcoma can also occur in the proximal humerus, the spine, and the ribs, although it is less common in these locations. The most frequent sites remain the long tubular bones in the limbs.
What are the symptoms of a fracture?
After a fracture, three characteristic manifestations occur. The first one is abnormal movement. This abnormal movement is due to the formation of an unusual activity of the fracture ends in the affected limb, known as abnormal movement. The second one is called deformity, which is also due to a significant deformity in the affected limb after the fracture ends. The third one is called bone crepitus, also known as bone rubbing sound, which is the sound produced when the fracture ends rub against each other. These three are specific signs of a fracture. In addition to these three, there will also be severe pain in the affected limb, and this pain is very intense, rendering the limb immobile. Secondly, there will be obvious swelling, which is caused by bleeding in the medullary cavity of the fracture ends. The third is functional impairment, as the affected limb will definitely be immobile after the fracture.
Osteosarcoma imaging manifestations
The radiological features of osteosarcoma start with an introduction to X-ray imaging. X-rays can show typical new bone formation and bone destruction, which are characteristic features of X-rays. Destruction of bone trabeculae can also be seen on X-rays. Additionally, the density of the tumor tissue increases, leading to a characteristic X-ray known as the Codman's triangle, which occurs when the tumor penetrates the bone and pushes up the periosteum, creating a unique image of Codman's triangle. The second examination includes CT scans and MRI, which are primarily used to determine the nature and extent of the bone tumor, and whether there is infiltration into the surrounding soft tissues. The third radiological examination is a nuclear bone scan, which is primarily important for determining whether the myeloma has metastasized to distant sites.
Does shoulder pain mean lung cancer?
The most common cause of shoulder pain is chronic strain of the ligaments and muscles in the shoulder, not lung cancer. Lung cancer accounts for only a small portion of the reasons. If a patient has lung cancer, it can spread to the shoulder, or the lung cancer itself can produce a type of referred pain, which can cause shoulder pain. To determine the cause, it is necessary to go to the hospital for an X-ray of the shoulder joint or a plain chest film, as well as an MRI of the shoulder joint, to clarify the cause of the shoulder pain. If the pain is solely due to the muscles or ligaments in the shoulder, it can be relieved through conservative treatments such as massage, acupuncture, electrotherapy, and magnetotherapy.
How to exercise with lumbar spondylosis?
For patients with lumbar spondylosis, it is recommended to exercise through swimming. Swimming exercises the muscles in the lower back and since the body is in a non-weight-bearing position during swimming, it does not aggravate the symptoms of lumbar spondylosis. Remember not to engage in exercises that put weight on the waist, such as playing ball, running, or participating in marathons. These activities should be avoided as they can increase the burden on the waist, exacerbating the degree of spondylosis. They may also lead to complications such as lumbar disc herniation and spinal stenosis, causing gradual increase in lower back pain and symptoms of numbness in the lower limbs.
How is a herniated lumbar disc treated?
The treatment methods for lumbar disc herniation currently fall into two categories in clinical practice. The first is conservative treatment, which primarily involves methods like massage, acupuncture, electrotherapy, magnetic therapy, and traction to alleviate symptoms of pain and restricted movement in the lower back. If conservative treatment proves ineffective and the patient's condition worsens, accompanied by radiating pain and numbness in both legs, it indicates that the herniated disc has severely compressed the nerve roots. At this point, the effectiveness of conservative treatment becomes very poor, and the only option may be to undergo surgical treatment. The primary goal of surgery is to remove the herniated disc, and if the patient has spinal instability, it also involves the use of screws and plates to restore spinal stability.