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What is Hydrogel Liquid Knee Replacement? Advantages and Application Methods

The knee joint is one of the body’s most load-bearing and most mobile joints. When cartilage loss occurs in the knee due to aging, trauma, or degenerative diseases, patients can experience pain, restricted movement, and a significant decline in quality of life. Today, one of the innovative treatments for knee prosthesis is the hydrogel liquid knee injection. Associate Prof. Dr. Harun Mutlu and Associate Prof. Dr. Serhat Mutlu explain in detail what you need to know about hydrogel liquid knee prosthesis.

What Is Hydrogel Liquid Knee Prosthesis?

Hydrogel liquid knee prosthesis is a modern treatment method in which a biocompatible hydrogel-based lubricant and cushioning fluid is injected into the knee joint. This fluid increases joint lubrication, helps protect the cartilage surfaces, and facilitates smoother movement. It can be used as an alternative to surgical knee replacement, especially in elderly patients or those with chronic joint diseases like osteoarthritis.

Who Is a Candidate for Hydrogel Liquid Knee Prosthesis?

This method is recommended for:

- Patients with mild to moderate cartilage loss in the knee

- Those experiencing chronic knee pain who are not suitable for surgery

- Patients seeking a minimally invasive treatment before considering knee replacement

- Elderly individuals who want a more mobile, pain-free lifestyle

- Athletes looking to preserve joint health after sports injuries

However, in advanced cartilage loss or bone deformity, surgical knee replacement may still be necessary. Associate Prof. Dr. Harun Mutlu and Associate Prof. Dr. Serhat Mutlu advise a detailed orthopedic evaluation to determine candidacy.

How Is the Hydrogel Injection Performed?

The procedure is typically done in a clinical setting using a minimally invasive technique:

1. Patient Evaluation
The knee is examined, and imaging (X-ray or MRI) assesses the degree of cartilage loss.

2. Local Anesthesia
Local anesthesia is applied to ensure patient comfort.

3. Hydrogel Injection
The hydrogel fluid is injected into the joint with a special syringe. It spreads within the joint, creating a lubricating layer that supports the cartilage surfaces.

4. Recovery
The patient can resume daily activities after a brief rest. Heavy physical activity should be avoided for the first few days.

Advantages of Hydrogel Liquid Knee Prosthesis

Compared to traditional knee replacement surgery, hydrogel injections offer several benefits:

✔ A non-surgical treatment option

✔ Slows progression of cartilage loss

✔ Reduces knee pain and improves mobility

✔ Quick recovery, allowing a fast return to daily life

✔ Provides joint lubrication to reduce friction

Associate Prof. Dr. Harun Mutlu and Associate Prof. Dr. Serhat Mutlu note that this approach offers significant comfort, especially for middle-aged and elderly patients.

How Long Does the Effect Last?

Duration varies with the patient’s health, activity level, and cartilage damage. Generally, the effects last between 6 months and 2 years. Since it can be repeated, patients may receive periodic injections to maintain joint support.

Post-Injection Care

After treatment, they recommend:

✔ Avoid heavy exercise for 48 hours

✔ Refrain from movements that overstrain the knee

✔ Follow a regular physical therapy and exercise program

✔ Maintain healthy nutrition and weight (excess weight increases knee load)

Hydrogel Injection vs. Traditional Knee Replacement

Conclusion

Hydrogel liquid knee injection offers a non-surgical, effective, and rapid treatment alternative for patients with knee pain and limited movement. It provides great comfort for those with mild to moderate osteoarthritis who wish to avoid or delay surgery. Associate Prof. Dr. Harun Mutlu and Associate Prof. Dr. Serhat Mutlu emphasize its role in improving patients’ quality of life.

If you suffer from knee pain or joint problems, consult an orthopedic specialist for a thorough evaluation.