Overcoming Knee Flexibility Challenges After Meniscus Surgery - Orthopedics

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Knee flexion area


Hello doctor, I have been experiencing the aftereffects of a car accident.
It seems that I only discovered a large tear in the medial meniscus of my knee over the past 2-3 years.
I underwent surgery at the end of September last year and rested for three months before starting rehabilitation.
I have been doing rehabilitation for four months now, gradually increasing my knee flexion from 30 degrees to 110 degrees.
However, I am encountering a problem as I attempt to progress to 120 degrees; it often feels like I cannot bend it further.
When I try to bend it, the muscles on the outer side of my right thigh, specifically the vastus lateralis, feel particularly tight.
I have also undergone two sessions of shockwave therapy, which have gradually softened the area, making it less rigid.
Due to financial considerations, I switched to glucosamine prolotherapy, receiving injections in three locations weekly to help repair the inflamed areas.
After two weeks, I have noticed some improvement.
I would like to ask the doctor, if I still cannot achieve 120-130 degrees of flexion later on, what methods would you use to help a patient achieve 130 degrees of knee flexion?

Xiao Wei, 40~49 year old female. Ask Date: 2023/04/27

Dr. Chen Bochen reply Orthopedics


Hello, Xiao Wei.
In addition to the methods you have already used, you can also consider: 1.
Surgical intervention under anesthesia 2.
Arthroscopic adhesiolysis and tendon-ligament release surgery 3.
Manual therapy by a physical therapist combined with self-stretching.
Wishing you a speedy recovery!

Reply Date: 2023/04/27

More Info


After undergoing meniscus surgery, it is common for patients to experience challenges with knee flexibility, especially when trying to achieve full range of motion. Your situation, where you have progressed from 30 degrees to 110 degrees of flexion over four months, is commendable, but it is understandable that you are concerned about reaching your goal of 120 to 130 degrees.

Firstly, it is important to recognize that recovery from knee surgery, particularly involving the meniscus, can be a gradual process. The knee joint is complex, and factors such as swelling, pain, muscle tightness, and scar tissue formation can all contribute to limitations in range of motion. In your case, the tightness in your quadriceps muscle (the muscle at the front of your thigh) may be a significant factor in your inability to flex your knee further. This tightness can be exacerbated by compensatory movement patterns developed during your recovery.

Here are some strategies and methods that healthcare professionals may employ to help you achieve your desired knee flexion:
1. Physical Therapy: Continuing with a structured physical therapy program is crucial. A physical therapist can provide targeted exercises to improve flexibility and strength in the quadriceps and surrounding muscles. They may also use modalities such as ultrasound or electrical stimulation to reduce pain and inflammation.

2. Manual Therapy: Techniques such as joint mobilization and soft tissue manipulation can help alleviate tightness in the muscles and improve joint mobility. Your therapist may also perform specific stretches to target the quadriceps and hamstrings.

3. Progressive Stretching: Incorporating a routine of progressive stretching exercises can help gradually increase your knee flexion. This may include passive stretching, where a therapist assists you in bending your knee, or active stretching, where you perform the movements yourself.

4. Use of Assistive Devices: Devices such as a continuous passive motion (CPM) machine can be beneficial in the early stages of recovery. This machine gently moves your knee through a controlled range of motion, which can help prevent stiffness.

5. Injection Therapies: You mentioned considering glucosamine injections for inflammation. While these can help with joint health, other options like corticosteroid injections or hyaluronic acid injections may also be discussed with your physician to reduce inflammation and improve mobility.

6. Surgical Options: If conservative measures fail and you are still unable to achieve the desired range of motion, surgical options may be considered. This could include arthroscopic procedures to remove scar tissue or adhesions that may be limiting your knee flexion.

7. Home Exercise Program: It is essential to maintain a consistent home exercise program. This should include both stretching and strengthening exercises tailored to your specific needs. Your therapist can help design this program.

8. Patience and Consistency: Recovery from knee surgery can take time, and it is important to remain patient and consistent with your rehabilitation efforts. Regular follow-ups with your healthcare provider will help monitor your progress and make necessary adjustments to your treatment plan.

In conclusion, achieving full knee flexion after meniscus surgery is a process that requires a multifaceted approach. By working closely with your healthcare team, utilizing physical therapy, and being proactive in your rehabilitation, you can increase your chances of reaching your goal of 120 to 130 degrees of knee flexion. If you continue to experience difficulties, discussing further options with your orthopedic surgeon will be essential to determine the best course of action for your recovery.

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