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Na Hong Wei
Orthopedics
About me
Yanshou County People's Hospital, Orthopedics Department, Chief Physician, engaged in clinical work in orthopedics for many years.
Proficient in diseases
Specializes in: Orthopedics, general surgery, and minimally invasive treatment.
Voices
Postoperative recurrence symptoms of osteosarcoma
Symptoms of recurrent osteosarcoma after surgery are generally consistent with the symptoms before the initial surgery. The main symptoms include: Firstly, localized pain, which is persistent, progressive, and does not alleviate, including pain that worsens at night. Secondly, localized swelling, which usually occurs around the surgical site if limb-sparing surgery was performed, or at the stump if amputation was done. Thirdly, the appearance of systemic cachexia and symptoms of metastasis. Systemic cachexia typically includes weight loss, anemia, fatigue, and loss of appetite. For osteosarcoma, metastasis primarily targets the lungs, where numerous cancerous shadows can be detected. Thus, the main recurrent symptoms of osteosarcoma after surgery include pain, swelling, and cachexia.
Is there a cure for lumbar disc herniation?
Lumbar disc herniation is treatable, and the results after treatment are very good. The treatment methods for lumbar disc herniation mainly depend on the direction and degree of the herniation as well as the symptoms it causes. Generally, it is divided into conservative treatment and surgical treatment. Conservative treatment is the first approach, which initially includes general treatment. That is to say, after experiencing symptoms of a lumbar disc herniation, you must first rest in bed and then make sure to sleep on a flat bed and appropriately strengthen the muscles of the lower back. The second approach is traditional Chinese medicine, the third is traction and massage therapy, the fourth is physical therapy, and the fifth is rehabilitation therapy. If the treatment is not effective, or other surgical indications appear, such as urinary and fecal incontinence or spinal cord type nerve damage combined with spinal stenosis, then surgical treatment is needed. Surgical treatments generally include conventional surgery and minimally invasive surgery, with the latter being more commonly used nowadays. Other treatments include disc sealing, sacral therapy, small needle knife therapy, and nucleus pulposus injection with ozone, among others. Overall, not only is lumbar disc herniation treatable, but there are also many treatment methods. However, as to which treatment method is suitable for you, you must go to the hospital and consult a doctor to decide.
Osteosarcoma mainly metastasizes through
The main metastatic pathways of osteosarcoma are generally divided into three types. The first is hematogenous spread, which refers to the dispersal of tumor cells throughout the body via the bloodstream, typically settling in areas with slower blood flow which facilitates the deposition of these cells leading to local changes. The second is direct implantation, which involves tumor cells directly establishing themselves in the vicinity of the tumor's common sites, eventually leading to local metastasis. The third type is lymphatic spread, where tumor cells migrate through the lymphatic system, spreading along lymphatic vessels or pathways. Therefore, the main metastatic pathways of osteosarcoma are these three types. The primary sites of metastasis for osteosarcoma are mainly the lungs, but metastases can also occur in the brain or through other mechanisms.
What causes tendinitis?
Tendonitis refers to a type of sterile inflammation that occurs in the tendons and surrounding tissues due to various reasons. Its formation typically follows these four causes: First, acute injury, which usually occurs after the tendons are impacted violently, causing tears or ruptures and leading to an inflammatory reaction in the tendon and surrounding area. Second, long-term wear and tear. This is primarily seen in tendons that are repeatedly subjected to abnormal, unhealthy wear and tear, leading to increased tendon burden or instability at the attachment points, which then causes a surrounding inflammatory response. Third, increased tendon load, leading to damage in the tendon itself, and even causing tears and bleeding, forming a reactive inflammation. The final cause is due to excessively long exercise periods or overloading the tendons through exercise, causing tendon congestion and edema, and eventually leading to inflammation. This can occur in individuals who suddenly engage in heavy exercise after a period of inactivity, or athletes who train daily for extended periods without adequate rest, causing the tendons to be under constant stress. Over time, like a bowstring, this can lead to slackening or rupture, causing an inflammatory response around the tendon or in the tendon itself. Thus, tendonitis generally arises from the reasons mentioned above, often seen in chronic strain and improper posture during exercise, and less commonly from acute injuries and increased loads.
Is osteosarcoma a cancer?
If we are to speak strictly, osteosarcoma is not cancer. This is because cancer typically refers to malignant tumors of epithelial tissue, whereas osteosarcoma, like all sarcomas, is a malignant tumor that occurs in connective or muscle tissue. Therefore, their origins are different: osteosarcoma is not cancer; it is a malignant tumor that occurs in bone tissue, commonly found in the distal femur, proximal tibia, and proximal humerus. So, strictly speaking, osteosarcoma is a sarcoma, a malignant tumor that occurs in bone tissue. It is not what one would typically refer to as cancer, which usually pertains to epithelial tissues, such as in cases of skin cancer or breast cancer. Osteosarcoma is therefore classified as a sarcoma, not as cancer.
Is osteosarcoma sensitive to chemotherapy?
Osteosarcoma is relatively sensitive to chemotherapy. Currently, the treatment of malignant tumors is primarily a comprehensive approach centered around surgery. However, the treatment of osteosarcoma should start with neoadjuvant chemotherapy, which involves administering a certain number of chemotherapy sessions, generally around six, before surgery. After chemotherapy, the tumor itself shrinks in size, pain is reduced, and the patient's cachexia also improves. At this point, choosing an optimal surgical method based on the tumor’s location and size becomes feasible, whether it involves amputation, limb-salvage, or other treatment methods such as the implantation of prosthetics. Postoperative chemotherapy is then administered. With this approach, there is a significant improvement in the five-year survival rate. Therefore, the treatment of osteosarcoma is inseparable from chemotherapy, requiring both preoperative and postoperative chemotherapy, making osteosarcoma quite sensitive to chemotherapy overall.
What causes sciatica?
The causes of sciatica generally fall into two categories. The first is primary sciatica, which is usually caused by inflammation of the sciatic nerve and is relatively rare in clinical practice. The second category is secondary sciatica, which occurs when the tissues and structures around the sciatic nerve undergo pathological changes, leading to stimulation and compression of the sciatic nerve, thus causing secondary sciatica. The majority of secondary sciatica cases are associated with lumbar spine disorders, such as lumbar disc herniation, tumors in the lumbar spinal canal, or degenerative joint disease of the lumbar spine, as well as sacroiliitis. A hospital examination is necessary to make a definitive diagnosis.
How to exercise with lumbar disc herniation
For patients with lumbar disc herniation, self-exercise is a very important and effective treatment method. First, it is important to maintain the correct sitting posture, sit up straight without leaning sideways, and avoid sitting for extended periods. It is also necessary to keep the waist warm to prevent catching cold. Second, it is necessary to strengthen the exercise of the back muscles, especially the erector spinae and multifidus, with exercises such as single-leg bridges, double-leg bridges, and the "little swallow" exercise. Third, maintain the correct posture in daily life, such as when lifting or holding objects, to avoid increasing tension in the waist and causing unnecessary damage. Fourth, regarding rest, it is crucial to lie on a firm bed and possibly add a thin pad under the waist to keep the hips and knees in a certain alignment, ensuring the waist muscles can fully relax. Fifth, always wear a waist belt during exercise. The waist belt is one of the most important orthopedic supports, serving to immobilize and protect the waist, limiting movement during activity to solidify the effects of earlier treatments. Therefore, patients with lumbar disc herniation must develop a complete and reasonable treatment plan at a regular medical institution and normal physiotherapy institution.
Causes of Lumbar Muscle Strain
Lumbar muscle strain is actually a chronic inflammatory injury of the muscles in the lower back and their attachment points, fascia, or periosteum. It is one of the primary causes of lower back pain. As for its causes, there are generally two: the first being chronic strain; the second is improper treatment of acute lumbar trauma, which then becomes prolonged and turns into chronic lumbar muscle strain. Starting with the first cause, it mainly arises from long periods of bending over during work, putting the lumbar muscles in a constant state of tension, then leading to the compression of small blood vessels and ultimately causing insufficient oxygen supply to the muscles and poor elimination of metabolic substances, which then stimulates local inflammatory injuries. So, this is the main reason. Generally, in the early stages, the muscles are still in a compensatory adjustment phase, but as the condition progresses, they can no longer adjust, resulting in a series of compensatory adjustments, leading to lumbar muscle strain and ultimately causing back pain and restricted lumbar mobility. Thus, the primary causes of lumbar muscle strain are two-fold: the first is long-term chronic overload of the lumbar region, causing inflammation. The second is improper treatment following an acute lumbar sprain or trauma, which eventually leads to chronic lumbar muscle strain. There are essentially these two reasons.
What should I do about sciatica?
For sciatica, absolute bed rest is initially required, ideally lasting three weeks. If three weeks is not possible, at least one week is necessary. Secondly, continual traction is used, which can widen the intervertebral space, reduce the internal disk pressure, and potentially expand the spinal canal, thereby alleviating stimulation and compression of the nerve roots. Thirdly, you can take some non-steroidal anti-inflammatory drugs, or some traditional Chinese medicines, many of which contain pain-relieving ingredients. Fourthly, consider undergoing physical therapy, including physiotherapy, acupressure, and massage. Fifthly, intradiscal injections, intradiscal blockade, or catheter blockade can be considered. Sixthly, chemical dissolution of the nucleus pulposus can be considered. Thus, these are the basic treatment methods for sciatica.