Knee Swelling and Pain After Car Accident: What to Do Next? - Orthopedics

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Swelling in the knee after a car accident, unable to fully extend or bend?


Hello Doctor: It has been a month since the car accident.
Although X-rays showed no bone issues and an MRI indicated that the meniscus and cruciate ligaments are not severely damaged, the orthopedic doctor drained two tubes of accumulated blood from my knee and mentioned that some of the blood has already clotted.
He advised me to apply heat at home.
Two weeks have passed, and my right knee is still "swollen," "unable to fully extend or bend," and I "cannot walk normally." I have been applying heat and trying to stretch, but both bending and straightening are very painful, and sometimes my knee makes a "clicking" sound.
The orthopedic doctor has scheduled a follow-up appointment in two weeks.
Should I continue with heat therapy and stretching during this time, or should I see a rehabilitation specialist first?

Danxin de ren, 30~39 year old female. Ask Date: 2020/12/01

Dr. Shi Guozheng reply Orthopedics


Continuous hot compresses combined with exercises for joint flexion and extension should be performed.
If you are unable to do this, you need to visit a rehabilitation department for guidance from a physical therapist.
Swelling may take about two to three months to completely resolve, and consistent rehabilitation is essential.

Reply Date: 2020/12/01

More Info


After a car accident, experiencing knee swelling and pain can be quite concerning, especially when previous imaging studies like X-rays and MRIs have not shown significant damage to the bones or major ligaments. However, the presence of swelling, inability to fully extend or flex the knee, and pain during movement indicate that there may be underlying soft tissue injuries or complications that need to be addressed.

Given your situation, it is essential to follow the advice of your orthopedic doctor while also considering additional steps to aid in your recovery. Here are some recommendations based on your description:
1. Continue Heat Therapy: Heat therapy can help improve blood circulation and reduce stiffness in the knee joint. Applying heat can be beneficial, especially if you find it soothing. However, be cautious not to apply heat for too long to avoid burns or increased swelling.
2. Gentle Range of Motion Exercises: While you mentioned that bending and straightening your knee is painful, gentle range of motion exercises are crucial. Start with very gentle movements within a pain-free range. For example, try to flex and extend your knee slightly while sitting or lying down. If the pain is too intense, stop and rest.
3. Avoid Overexertion: It is important not to push through severe pain. If you experience significant discomfort while trying to stretch or move your knee, it may be a sign that you need to take a step back. Listen to your body and avoid activities that exacerbate the pain.

4. Consider Physical Therapy: Since you are still experiencing significant symptoms after two weeks, it may be beneficial to consult a physical therapist. A physical therapist can provide a tailored rehabilitation program that focuses on strengthening the muscles around the knee, improving flexibility, and restoring function. They can also use modalities such as ultrasound or electrical stimulation to help manage pain and swelling.

5. Monitor Symptoms: Keep an eye on your symptoms. If you notice increased swelling, redness, warmth, or if the pain worsens, it is crucial to seek medical attention sooner rather than later. These could be signs of complications such as infection or further internal bleeding.

6. Follow-Up Appointments: Make sure to attend your follow-up appointments with your orthopedic doctor. They will monitor your progress and may recommend further imaging or interventions if your symptoms do not improve.
7. Medication Management: If you are experiencing significant pain, discuss with your doctor the possibility of pain management options, including over-the-counter pain relievers or prescribed medications.
8. Rest and Elevation: Ensure you are giving your knee adequate rest. Elevating your knee can help reduce swelling.
In summary, while it is essential to continue with heat therapy and gentle stretching, consulting a physical therapist may provide you with the specialized care needed to address your ongoing symptoms. It is crucial to communicate openly with your healthcare providers about your pain levels and any changes in your condition. Your recovery is a priority, and taking proactive steps can help you regain function and alleviate discomfort in your knee.

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