After-Hours Urgent Ortho Care is now available in Wilton, Monday to Friday from 4:00 pm to 7:00 pm and Saturdays from 12:00 to 4:00 pm. Walk-ins welcome.

Where It Hurts: My Knee

Your knee joint provides the strength that helps you walk, run, squat, jump, and turn. But the muscles, tendons, ligaments, and cartilage are all vulnerable to injury. This is especially true for athletes and active people. Knee injuries can happen in an instant, like ACL and meniscus tears. Also, wear and tear to the knee cartilage can take a toll over time. Learn more about conditions that cause knee pain and how the knee experts at Orthopaedic & Neurosurgery Specialists (ONS) can help.

Common Knee Injuries and Conditions

We see people with all types of knee pain. The most common injuries and conditions we treat are:

  • ACL injuries: Your anterior cruciate ligament connects your shinbone to your thighbone. With a sudden or severe twist, it can tear. This can cause a popping sensation, along with severe pain and swelling. ACL tears usually need reconstructive surgery.
  • Arthritis: Osteoarthritis (wear and tear arthritis) is one of the biggest causes of knee pain, most common in people age 50+. However, you’re more at risk for developing arthritis if you’ve had a prior knee injury or have a family history of knee arthritis. As the cartilage wears away, it causes pain, joint stiffness, swelling, and loss of range of motion.
  • Kneecap pain (runner’s knee): Also called patellofemoral pain syndrome, this is pain in the front of your knee, behind the kneecap. It hurts when you squat, kneel or bend your knee, especially when descending stairs or walking downhill. Runners sometimes develop this from repetitive motion, but damaged cartilage or a hit to your knee can also cause it.
  • MCL injuries: Your medial collateral ligament runs along the inside of your knee. A blow on the outside of the knee can injure your MCL, causing tenderness and pain. Mild MCL sprains and tears often don’t need surgery while more severe sprains may require surgery.
  • Meniscus injuries: Your meniscus is a wedge-shaped, rubbery cushion in your knee. Like any cartilage, it can tear. This can happen because of a sudden or severe twist of the knee or from wear and tear and arthritis.
  • PCL tears: Your posterior cruciate ligament runs down the back of your knee. Like your other knee ligaments, it’s vulnerable to injury (especially for athletes). A tear causes pain, swelling, and trouble walking, and sometimes needs surgery.
  • Sprains and strains: The soft tissues of your knees (muscles, tendons, and ligaments) can get strained or overstretched. This usually happens because of a fall or other sudden movement. A sprain or a strain can cause loss of mobility, but usually gets better with rest.
  • Tendinitis: Your patellar tendon runs from the bottom of your kneecap to your shinbone. With overuse, such as lots of running and jumping, the tendon can get irritated and inflamed. It often causes a dull pain at the top of the shinbone.

We see people with all types of knee pain. The most common injuries and conditions we treat are:

  • ACL injuries: Your anterior cruciate ligament connects your shinbone to your thighbone. With a sudden or severe twist, it can tear. This can cause a popping sensation, along with severe pain and swelling. ACL tears usually need reconstructive surgery.
  • Arthritis: Osteoarthritis (wear and tear arthritis) is one of the biggest causes of knee pain, most common in people age 50+. However, you’re more at risk for developing arthritis if you’ve had a prior knee injury or have a family history of knee arthritis. As the cartilage wears away, it causes pain, joint stiffness, swelling, and loss of range of motion.
  • Kneecap pain (runner’s knee): Also called patellofemoral pain syndrome, this is pain in the front of your knee, behind the kneecap. It hurts when you squat, kneel or bend your knee, especially when descending stairs or walking downhill. Runners sometimes develop this from repetitive motion, but damaged cartilage or a hit to your knee can also cause it.
  • MCL injuries: Your medial collateral ligament runs along the inside of your knee. A blow on the outside of the knee can injure your MCL, causing tenderness and pain. Mild MCL sprains and tears often don’t need surgery while more severe sprains may require surgery.
  • Meniscus injuries: Your meniscus is a wedge-shaped, rubbery cushion in your knee. Like any cartilage, it can tear. This can happen because of a sudden or severe twist of the knee or from wear and tear and arthritis.
  • PCL tears: Your posterior cruciate ligament runs down the back of your knee. Like your other knee ligaments, it’s vulnerable to injury (especially for athletes). A tear causes pain, swelling, and trouble walking, and sometimes needs surgery.
  • Sprains and strains: The soft tissues of your knees (muscles, tendons, and ligaments) can get strained or overstretched. This usually happens because of a fall or other sudden movement. A sprain or a strain can cause loss of mobility, but usually gets better with rest.
  • Tendinitis: Your patellar tendon runs from the bottom of your kneecap to your shinbone. With overuse, such as lots of running and jumping, the tendon can get irritated and inflamed. It often causes a dull pain at the top of the shinbone.

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