Concerns About Knee Flexion After Femur Fracture Surgery - Orthopedics

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Knee flexion


Doctor, I would like to ask about my thigh fracture.
It has been over a month since my surgery.
My knee can only bend a little, and I am currently practicing bending my knee.
Will the metal plate in my thigh break or bend? Because every time I practice bending, it feels like my thigh is about to break.

Axiang, 20~29 year old female. Ask Date: 2018/08/27

Dr. Shi Guozheng reply Orthopedics


If the fracture surgery has achieved good reduction and fixation, it is important to start bending movements promptly.
Delaying these movements can negatively impact the future range of motion in the joint.

Reply Date: 2018/08/27

More Info


After a femur fracture surgery, it is common to have concerns about knee flexion and the stability of the hardware used in the surgical repair. It’s important to understand that the recovery process can be gradual and may involve some discomfort as you work on regaining mobility and strength in your knee.

Firstly, regarding your concern about the metal plate in your thigh potentially bending or breaking during knee flexion exercises, it’s essential to recognize that these implants are designed to withstand significant forces. The metal plates and screws used in orthopedic surgeries are made from strong materials, typically titanium or stainless steel, which are engineered to endure the stresses of daily activities and rehabilitation exercises. However, it is crucial to follow your surgeon's guidelines regarding the intensity and type of exercises you should perform during your recovery.

If you are experiencing severe pain that feels like your thigh is about to "break," it is essential to communicate this to your healthcare provider. Pain during rehabilitation can be a sign that you are pushing too hard or that there may be an underlying issue that needs to be addressed. Your physical therapist can help modify your exercises to ensure you are working within a safe range of motion while still making progress.

In the early stages of recovery, it is normal for knee flexion to be limited. Typically, patients aim to achieve a range of motion of about 90 degrees within the first few weeks post-surgery, but this can vary based on individual circumstances, including the severity of the fracture and the surgical technique used. It is also common for patients to experience stiffness and tightness in the knee, which can be alleviated through gentle stretching and physical therapy.

As you continue your rehabilitation, focus on the following strategies to improve your knee flexion safely:
1. Gradual Progression: Start with gentle range-of-motion exercises and gradually increase the intensity as tolerated. Avoid any movements that cause sharp or severe pain.

2. Physical Therapy: Work closely with a physical therapist who can provide tailored exercises and techniques to improve your knee flexion while ensuring the safety of your surgical site.

3. Pain Management: If you experience significant discomfort, discuss pain management options with your doctor. This may include medications, ice therapy, or other modalities.

4. Strengthening Exercises: Once you have achieved a certain level of knee flexion, your therapist may introduce strengthening exercises for the quadriceps and hamstrings, which are crucial for supporting the knee joint.

5. Patience and Consistency: Recovery from a femur fracture can take time, and it is essential to be patient with yourself. Consistent practice of your rehabilitation exercises will yield better results over time.

6. Follow-Up Appointments: Keep all follow-up appointments with your orthopedic surgeon to monitor your healing progress and make any necessary adjustments to your rehabilitation plan.

In summary, while it is understandable to have concerns about the integrity of the hardware used in your surgery, it is generally designed to withstand the forces involved in rehabilitation. Focus on a gradual and guided approach to your recovery, and do not hesitate to reach out to your healthcare team with any concerns or questions you may have. Your safety and comfort during this process are paramount, and they can help ensure that you regain full function of your knee without compromising your recovery.

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