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  2. Patella fracture - Wikipedia

    en.wikipedia.org/wiki/Patella_fracture

    A patella fracture is a break of the kneecap. [1] Symptoms include pain, swelling, and bruising to the front of the knee. [1] A person may also be unable to walk. [1] Complications may include injury to the tibia, femur, or knee ligaments. [2] It typically results from a hard blow to the front of the knee or falling on the knee. [1]

  3. Patellofemoral pain syndrome - Wikipedia

    en.wikipedia.org/wiki/Patellofemoral_pain_syndrome

    Patellofemoral pain syndrome (PFPS; not to be confused with jumper's knee) is knee pain as a result of problems between the kneecap and the femur. [4] The pain is generally in the front of the knee and comes on gradually. [2] [4] Pain may worsen with sitting down with a bent knee for long periods of time, excessive use, or climbing and ...

  4. Medial knee injuries - Wikipedia

    en.wikipedia.org/wiki/Medial_knee_injuries

    This complex is the major stabilizer of the medial knee. Injuries to the medial side of the knee are most commonly isolated to these ligaments. [1] [3] A thorough understanding of the anatomy and function of the medial knee structures, along with a detailed history and physical exam, are imperative to diagnosing and treating these injuries.

  5. Medial patellofemoral ligament - Wikipedia

    en.wikipedia.org/wiki/Medial_patellofemoral_ligament

    Beyond 30 degrees, the quadriceps tendon and patellar ligament pull the patella posterior into the groove of the knee joint making lateral dislocation of the patella unlikely. Dislocation recurs in about 15–44% of cases, [4] and symptoms continue in about half. Recurrence of a laterally displaced patella is more common as the incidence of ...

  6. Knee pain - Wikipedia

    en.wikipedia.org/wiki/Knee_pain

    Running long distance can cause pain to the knee joint, as it is a high-impact exercise. [2] The location and severity of knee pain may vary, depending on the cause of the problem. Signs and symptoms that sometimes accompany knee pain include: [1] Swelling and stiffness; Redness and warmth to the touch; Weakness or instability; Popping or ...

  7. Articular cartilage damage - Wikipedia

    en.wikipedia.org/wiki/Articular_cartilage_damage

    One person can have severe pain with a single small defect while another person can have very little pain with several large full thickness defects. [2] Since articular cartilage does not have a blood supply and chondrocytes (cells in articular cartilage) have limited mobility, the articular cartilage has very limited ability to heal itself.

  8. Spontaneous osteonecrosis of the knee - Wikipedia

    en.wikipedia.org/wiki/Spontaneous_osteonecrosis...

    The condition is usually characterized by a sudden onset of knee pain, worse at night, or during weight-bearing such as standing or running. Nevertheless, it can also occur during rest or without any weight-bearing. About 94% of the cases affect the medial condyle of the femur. This is because the blood supply for the medial condyle is less ...

  9. Articular capsule of the knee joint - Wikipedia

    en.wikipedia.org/wiki/Articular_capsule_of_the...

    The articular capsule of the knee joint is the wide and lax joint capsule of the knee. It is thin in front and at the side, and contains the patella, ligaments, menisci, and bursae of the knee. [1] The capsule consists of an inner synovial membrane, and an outer fibrous membrane separated by fatty deposits anteriorly and posteriorly. [2]