Knee weakness
I am a taxi driver who underwent surgery ten years ago for a malignant spinal tumor, during which a vertebra was removed and replaced with a steel rod.
My recovery has been good, and I can walk and run.
However, in the past two to three months, I have found it difficult to climb stairs, feeling weakness in my knees and a sense of fear about not being able to make it up.
What specialty should I consult? Why is this happening? Sometimes my legs feel numb or sore.
st, 50~59 year old female. Ask Date: 2008/06/02
Dr. Shi Guozheng reply Orthopedics
There may be an issue with the spine; if there are bone spurs pressing on the nerves, it can cause pain, numbness, or tingling in the legs, making it difficult to walk long distances, requiring frequent breaks.
Additionally, there may be a problem with the knee joint; if there is an issue with the patella, one might experience pain when going up or down stairs, even if walking on flat ground is not a problem.
Sometimes, the joint may swell, become warm, or feel sharp pain.
Both of these conditions can be evaluated by an orthopedic specialist.
Reply Date: 2008/06/02
More Info
Knee weakness, especially in the context of your history of spinal surgery and recent symptoms, can be concerning and warrants a thorough evaluation. Given your background as a taxi driver and the physical demands of your job, it’s not uncommon to experience knee issues over time, particularly if you have a history of spinal surgery that may affect your overall mobility and strength.
When to Seek Orthopedic Help
You should consider seeing an orthopedic specialist, particularly one who focuses on knee issues. An orthopedic doctor can evaluate your knee's structural integrity, assess any potential damage to the ligaments, cartilage, or bones, and determine if there are underlying conditions that could be contributing to your symptoms.
Why You Might Be Experiencing Weakness
1. Muscle Weakness: After spinal surgery, it is possible that certain muscle groups, including those around the knee, may not be as strong as they once were. This weakness can lead to difficulty with activities that require more strength, such as climbing stairs.
2. Joint Issues: Conditions such as osteoarthritis can develop over time, especially if there has been a history of joint stress or injury. This can lead to pain, swelling, and a feeling of instability in the knee.
3. Nerve Impingement: Given your history of spinal surgery, there may be nerve involvement that could lead to symptoms like numbness or tingling in the legs. This could be due to changes in posture or mechanics following your surgery.
4. Patellofemoral Pain Syndrome: This condition, often characterized by pain around the kneecap, can be exacerbated by activities like stair climbing. It can occur due to muscle imbalances, overuse, or biomechanical issues.
5. Meniscus or Ligament Injury: If you have experienced any acute injuries or if there has been chronic wear and tear, you may have sustained a meniscus tear or ligament injury, which could contribute to your knee weakness.
Recommended Steps
1. Consult an Orthopedic Specialist: Schedule an appointment with an orthopedic surgeon or a sports medicine physician. They will likely perform a physical examination and may recommend imaging studies such as X-rays or an MRI to assess the condition of your knee.
2. Physical Therapy: Depending on the findings, a physical therapist can help you strengthen the muscles around your knee, improve your range of motion, and enhance your overall stability. This is particularly important for someone with a history of spinal surgery, as core strength and stability are crucial for overall mobility.
3. Pain Management: If you are experiencing pain, discuss options for pain management with your doctor. This may include medications, injections, or alternative therapies.
4. Activity Modification: While waiting for your appointment, consider modifying your activities to reduce strain on your knee. Avoid excessive stair climbing or activities that exacerbate your symptoms.
5. Monitor Symptoms: Keep track of your symptoms, including when they occur, their intensity, and any associated factors (like specific activities or positions). This information will be valuable for your healthcare provider.
Conclusion
Knee weakness can arise from various factors, especially in the context of previous spinal surgery. It is essential to seek orthopedic help to determine the underlying cause of your symptoms and to develop an appropriate treatment plan. Early intervention can help prevent further complications and improve your quality of life, allowing you to continue your work as a taxi driver without significant limitations.
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