Knee Cannot Straighten Three Weeks After Knee Replacement Surgery - Orthopedics

More Info

---

After knee replacement surgery, it is not uncommon for patients to experience difficulty straightening their knee, especially within the first few weeks post-operation. In your mother's case, three weeks after the surgery, there are several factors that could contribute to her inability to fully extend her knee.

1. Post-Surgical Swelling and Pain: After knee replacement surgery, swelling and pain are common. This can lead to stiffness in the knee joint, making it difficult to achieve full extension. The body needs time to heal, and inflammation can restrict movement.

2. Scar Tissue Formation: As the knee heals, scar tissue can form around the joint. This can lead to a condition known as arthrofibrosis, where excessive scar tissue restricts the range of motion. This is particularly common in the early stages of recovery.

3. Muscle Weakness and Imbalance: Following surgery, the muscles around the knee may weaken due to disuse. This weakness can affect the ability to fully straighten the knee. Rehabilitation exercises are crucial to strengthen these muscles and improve function.

4. Tightness in the Soft Tissues: The ligaments and tendons around the knee may become tight after surgery, which can also limit the range of motion. Stretching and physical therapy can help alleviate this tightness.

5. Implant Positioning: While it is less common, there is a possibility that the artificial joint may not be positioned correctly. If the implant is misaligned, it could lead to mechanical issues that prevent full extension. However, this is typically assessed by the surgeon through follow-up appointments and imaging if necessary.

Given these factors, it is essential for your mother to follow up with her orthopedic surgeon or physical therapist. They can evaluate her knee's range of motion, assess for any complications, and provide a tailored rehabilitation program.

Recommendations for Recovery:
- Physical Therapy: Engaging in a structured physical therapy program is vital. A physical therapist can provide exercises specifically designed to improve knee extension and overall mobility. They can also use modalities such as ultrasound or electrical stimulation to reduce pain and swelling.

- Home Exercises: Encourage your mother to perform gentle stretching and strengthening exercises at home, as advised by her therapist. This may include heel slides, quadriceps sets, and straight leg raises.

- Ice and Elevation: Applying ice to the knee can help reduce swelling and pain. Elevating the leg can also assist in minimizing swelling.

- Pain Management: If your mother is experiencing significant pain, it may be beneficial to discuss pain management options with her healthcare provider. This could include medications or alternative therapies.

- Regular Follow-ups: Ensure that she attends all scheduled follow-up appointments with her surgeon. They will monitor her recovery and can identify any issues early on.

In conclusion, while difficulty straightening the knee three weeks post-surgery can be concerning, it is often a part of the healing process. With appropriate rehabilitation and medical guidance, many patients gradually regain their range of motion and functional ability. If there are any signs of complications, such as increased pain, swelling, or instability, it is crucial to seek medical attention promptly.