Challenges in Achieving Knee Flexion After Patella Fracture Surgery - Orthopedics

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After surgery for a patellar fracture, the range of motion cannot exceed 50 degrees of flexion?


It has been 2 months and 10 days since the patellar surgery.
I have undergone extracorporeal shock wave therapy and manual manipulation to improve the knee flexion angle at an orthopedic clinic, but I am still unable to achieve a knee flexion angle of 50 degrees.
Are there any treatment options available to address this flexion issue?

Mr. Luo, 20~29 year old female. Ask Date: 2024/05/25

Dr. Wang Shouji reply Orthopedics


Hello, if a fracture has not yet healed or is excessively comminuted, it is generally not recommended to bend it too much to avoid displacement of the fracture.
If the fracture heals but there is still limited range of motion, a joint mobilization procedure may be performed under anesthesia, followed by rehabilitation.
Changhua Hospital cares about your health.
Wang Shou-ji.

Reply Date: 2024/05/25

More Info


Achieving knee flexion after patella fracture surgery can be a challenging process, especially when complications arise or when the recovery is slower than expected. In your case, being 2 months and 10 days post-surgery and only able to achieve a knee flexion angle of 50 degrees indicates that there may be underlying issues that need to be addressed.

Firstly, it’s important to understand that the recovery process after a patella fracture can vary significantly from person to person. Factors such as the severity of the fracture, the surgical technique used, the presence of any complications (like stiffness or scar tissue formation), and individual healing responses all play a crucial role in recovery.
1. Physical Therapy: Engaging in a structured physical therapy program is essential. A physical therapist can provide targeted exercises to improve range of motion and strength. Techniques such as passive range of motion exercises, stretching, and strengthening exercises for the quadriceps and hamstrings can be beneficial. If you haven't already, consider asking your therapist about using modalities like ultrasound or electrical stimulation to help with pain management and muscle activation.

2. Continuous Passive Motion (CPM) Machines: If you have access to a CPM machine, it can be very effective in gradually increasing knee flexion without putting too much stress on the joint. This machine allows for controlled movement of the knee joint, which can help in preventing stiffness and promoting healing.

3. Manual Therapy: Techniques such as joint mobilization performed by a skilled therapist can help in improving the flexibility of the knee joint. This can be particularly useful if there are adhesions or scar tissue that are limiting your range of motion.

4. Home Exercises: In addition to therapy sessions, performing home exercises is crucial. Gentle stretching of the hamstrings and quadriceps, as well as heel slides and wall slides, can help improve your range of motion. Always ensure that you are not pushing into pain, as this can lead to further complications.

5. Pain Management: If pain is a significant barrier to achieving flexion, discussing pain management strategies with your healthcare provider is important. This could include medications, ice therapy, or other modalities to help reduce inflammation and pain.

6. Surgical Considerations: If after several weeks of intensive rehabilitation you still find it difficult to achieve adequate knee flexion, it may be worth discussing with your orthopedic surgeon the possibility of surgical intervention. In some cases, procedures to release scar tissue or manipulate the joint may be necessary to restore function.

7. Patience and Consistency: Recovery from a patella fracture can be a slow process, and it’s essential to remain patient and consistent with your rehabilitation efforts. Setting small, achievable goals can help keep you motivated.

In conclusion, achieving knee flexion after patella fracture surgery can be a complex process that requires a multifaceted approach. Engaging with a physical therapist, utilizing appropriate rehabilitation techniques, and maintaining open communication with your healthcare team will be key to overcoming the challenges you are facing. If progress remains limited, further evaluation by your orthopedic surgeon may be warranted to explore additional treatment options.

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