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911 Pain Management: More Life, Less Pain.

Our facility is free from unnecessary wait times and we provide the best experience for our patients. This is made possible by our incredible staff and our nationally renowned pain management specialist, Dr. Liu MD, who has over 30 years of scientific research and clinical experience in her profession.

Our number one priority is patient safety and positive treatment outcomes. We provide treatments free of anxiety with a short-term sedation so you can go home with the least possible discomfort.

By cobaltmoe | June 22nd, 2021 |

The Basic Anatomy of Our Knees

The knee is one of the most complex joints in the body and is primarily composed of bones, ligaments, and cartilage. These components are interspersed with bursae or fluid-filled sacs that help smooth the movement of the knee. An overview of the other basic parts of the knee can be found below.


  • Femur (thigh bone)
  • Tibia (shin bone)
  • Fibula (beside the tibia)
  • Patella (knee cap)


  • Anterior cruciate (prevents femur from sliding backward)
  • Posterior cruciate (prevents femur from sliding forward)
  • Medial and lateral collateral (prevent the femur from sliding from side to side)


  • Medial menisci (cushion between the femur and tibia)
  • Lateral menisci (additional cushion between the femur and tibia)

Common Underlying Causes of Knee Pain

The causes of knee pain can be divided into three broad categories:

  • Acute injuries
  • Medical conditions
  • Overuse injuries

Below, you can find examples of the sorts of injuries and conditions that can lead to knee pain.

I. Acute Injuries

  • Broken bones — including the femur, tibia, and patella, otherwise known as the thigh bone, shin bone, and kneecap, respectively.
  • Torn ligaments — a tear in the tissue connecting muscle to bone.
  • Cartilage tear — a rip in the cartilage of the knee that can become stuck in the joint.
  • Dislocated kneecap — the kneecap slides out of position, leading to pain and swelling.

II. Medical Conditions

  • Anterior Cruciate Ligament (ACL) – This is one of four ligaments that keep rotational stability and cushions the upper and lower leg from impacting one another.
  • Posterior Cruciate Ligament (PCL) – This ligament is behind the knee, and it keeps the tibia from moving too far backward.
  • Medial Collateral Ligament (MCL) – Tears that occur between the femur and tibia.
  • Infections — infection of the joint caused by the spread of germs from elsewhere in the body or a puncture wound.

III. Overuse Injuries

  • IT band syndrome — inflammation of the band of tissue running from your hip to knee, common amongst runners.
  • Patellar syndromes — pain of and around the knee during physical activity.
  • Tendinitis — inflammation of the tendons, the tissue connecting your muscles and bones, caused by excessive and repetitive exercise.
  • Bursitis — overuse leads to irritation of the sac of fluid that prevents joint friction on the top of the knee.

Top Causes of Acute Knee Injuries

A person’s lifestyle can certainly put them at risk of a knee injury, but some types of knee injuries are unforeseeable and thus unavoidable. Below, you can find some of the types of events that are most likely to result in a knee injury:

  • Direct blows
  • Sprains
  • Overstretched ligaments
  • Penetrating injury
  • Overextended limbs
  • Bad falls

It is important to receive initial treatment for your injury at a local hospital first for any knee pain you may be suffering from. After that, looking for a pain management clinic should be your next step to help you cope with any residual knee pain.
It is important to receive initial treatment for your injury at a local hospital first for any knee pain you may be suffering from. After that, looking for a pain management clinic should be your next step to help you cope with any residual knee pain.

Reliable Pain Management Doctors Relieving Knee Pain

Knee pain can affect every facet of a person’s life, from their ability to walk to simply being able to sleep soundly. If you’re struggling with knee pain following an injury, specialists at 911 Pain Management can work with you to discover the cause of your suffering and create a minimally invasive pain treatment, non-narcotic method to manage that pain. From trigger point injections to medication management, our experienced staff of pain management doctors can help determine the treatment you need to find relief.

More Life, Less Pain. At 911 Pain Management, Treating Our Patients’ Source of Pain is Our Expertise.

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Sources Of Acute Pain


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Lower Back

No matter if you hit the gym, work in an environment that requires heavy lifting, or are just feeling the effects of aging, lower back pain and stiffness can demobilize you if you aren’t careful. 911 Pain Management helps patients overcome lower back pain with solid pain management solutions.

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the patient Journey


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1. Scheduled an appointment.

2. Plan your transportation.

3. We will send you a reminder.


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4. Registration and sign in.

5. Your medical evaluation.

6. Your treatment recommendation.


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7. Registration for treatment.

8. Preparation for treatment.

9. Treatment and recovery.

10. Discharge and release.

11. Transportation home.


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12. We will call you after 2 weeks to see how you are doing.

Our Pain Management Services in McAllen, TX

Pain Point Injections

Pain Point Injections

Our pain management doctors can provide trigger point, soft tissue, and steroid injections to help you find pain relief.

Nerve Blocks

Nerve Blocks

Nerve blocks are a type of pain medicine that works to block the pain signals being sent from the nerves in your back.

Medication Management

Medication Management

Medication is one powerful tool used by your Rio Grande pain team. We can provide the guidance that you need to stay safe.

Regenerative Medicine

Regenerative Medicine

Our regenerative medicine specialists can provide platelet-rich plasma therapy, stem cell therapy, or exosomes treatment to help get you relief.

Yixiang Liu MD


Yixiang Liu MD is a nationally renowned pain management physician in McAllen, Texas. She has never settled for less when it comes to healing others, and her medical training, education, and exceptional expertise ensure that you get the best in pain management available to you.

Learn More About Dr. Liu

See the Benefits of Pain Management in Your Life

Improve Heart Health

Improve Heart Health

Pain can cause your blood pressure and heart rate to increase, putting more strain on your heart. Pain management can help.

Get Better Sleep

Get Better Sleep

Pain can be a real hurdle standing between you and a good night’s sleep. Our pain management doctors can give you relief.

Relieve Muscle Tension

Relieve Muscle Tension

Acute pain can cause us to tense up and tighten our muscles. Pain medicine and treatment can help relieve that tension.

Boost Mobility

Boost Mobility

If you’re suffering from pain, you might be less flexible and mobile than you once were. Pain management can get you moving again.