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Knee Conditions

  • Chondromalacia Patella

    Chondromalacia Patella

    Chondromalacia patella is a common condition characterized by softening, weakening and damage of the cartilage.

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  • Jumper's Knee

    Jumper's Knee

    Jumper’s knee, also known as patellar tendinitis, is inflammation of the patellar tendon that...

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  • Kneecap Bursitis

    Kneecap Bursitis

    A bursa is a small fluid-filled sac found between soft tissues and bones. It lubricates and acts as a cushion to...

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  • Iliotibial Band Syndrome

    Iliotibial Band Syndrome

    An iliotibial band is a tough group of fibers that runs from the iliac crest of the hip along...

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  • Lateral Patellar Compression Syndrome

    Lateral Patellar Compression Syndrome

    Lateral patellar compression syndrome refers to pain under and around your kneecap.

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  • Osteochondritis Dissecans of the Knee

    Osteochondritis Dissecans of the Knee

    Osteochondritis dissecans is a joint condition in which a piece of cartilage, along with a thin layer of...

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  • Medial Patellofemoral Ligament (MPFL) Tears

    Medial Patellofemoral Ligament (MPFL) Tears

    The medial patellofemoral ligament (MPFL) is a ligament that joins the kneecap (patella) to the thighbone (femur).

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  • Knee Injury

    Knee Injury

    Pain, swelling, and stiffness are the common symptoms of any damage or injury to the knee.

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  • Unstable Knee

    Unstable Knee

    The knee joint is one of the largest joints in the body. This highly complex joint has several tissues supporting...

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  • Goosefoot Bursitis of the Knee

    Goosefoot Bursitis of the Knee

    A bursa is a small fluid-filled sac found between soft tissues and bones. It lubricates and acts as a cushion, decreasing...

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  • Knee Sprain

    Knee Sprain

    Knee sprain is a common injury that occurs from overstretching of the ligaments that support the knee joint.

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  • ACL Tears

    ACL Tears

    The anterior cruciate ligament (ACL) is one of the major ligaments of the knee.

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  • MCL Tears

    MCL Tears

    The medial collateral ligament (MCL) is the ligament located on the inner part of the knee joint.

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  • MCL Sprains

    MCL Sprains

    Your MCL may get sprained or injured while twisting, bending or quickly changing direction.

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  • Meniscal Injuries

    Meniscal Injuries

    Meniscal tears are one of the most common injuries to the knee joint. It can occur at any age but are more...

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  • Meniscal Tears

    Meniscal Tears

    There are two wedge-shaped cartilage pieces present between the thighbone and the shinbone each called a meniscus.

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  • Knee Ligament Injuries

    Knee Ligament Injuries

    Knee problems may arise if any of these structures get injured by overuse or suddenly during sports activities.

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  • Multiligament Instability

    Multiligament Instability

    The knee is a complex joint of the body that is vital for movement. The four major ligaments of the knee are...

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  • Knee Arthritis

    Knee Arthritis

    The joint surface is covered by a smooth articular surface that allows pain-free movement in the joint.

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  • PCL Injuries

    PCL Injuries

    Posterior cruciate ligament (PCL), one of the four major ligaments of the knee, is situated at the back of the knee.

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  • Chondral or Articular Cartilage Defects

    Chondral or Articular Cartilage Defects

    The articular or hyaline cartilage is the tissue lining the surface of the two bones in the knee joint.

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  • Patellar Instability

    Patellar Instability

    Any damage to the supporting ligaments may cause the patella to slip out of the groove either...

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  • Patella Fracture

    Patella Fracture

    The kneecap or patella forms a part of the knee joint. It is present at the front of the knee, protecting the knee and providing...

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  • Recurrent Patella Dislocation

    Recurrent Patella Dislocation

    The patella (kneecap) is a small bone that shields your knee joint. It is present in front of...

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  • Quadriceps Tendon Rupture

    Quadriceps Tendon Rupture

    The quadriceps can rupture after a fall, direct blow to the leg and when you land on your leg awkwardly from a jump.

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  • Patellar Tendon Rupture

    Patellar Tendon Rupture

    The patellar tendon works together with the quadriceps muscle and the quadriceps tendon to allow your knee to straighten out.

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  • Lateral Meniscus Syndrome

    Lateral Meniscus Syndrome

    Lateral meniscus syndrome is characterized by an injury caused by the tearing of the cartilage tissue or...

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  • Tibial Eminence Spine Avulsion Fracture

    Tibial Eminence Spine Avulsion Fracture

    Tibial eminence spine avulsion fracture is the avulsion (tearing away) of the tibial eminence.

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  • Posterolateral Instability

    Posterolateral Instability

    Posterolateral instability, also known as posterolateral rotatory instability (PLRI), is a common ...

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  • Osteonecrosis of the Knee

    Osteonecrosis of the Knee

    Osteonecrosis is a condition in which the death of a section of bone occurs because of lack of blood supply to it.

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  • Knee Angular Deformities

    Knee Angular Deformities

    Angular deformities of the knee are variations in the normal growth pattern during early childhood and are common during childhood.

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  • Hoffa's Fat Pad Syndrome

    Hoffa's Fat Pad Syndrome

    Hoffa’s fat pad syndrome also called fat pad impingement, infrapatellar fat pad syndrome, and Hoffa's disease, is...

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  • Posterolateral Corner Injuries

    Posterolateral Corner Injuries

    Posterolateral corner (PLC) injuries are defined as damage to a complex area of the knee formed by the association of...

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  • Knee Dislocation

    Knee Dislocation

    Knee dislocation is a condition that occurs when the bones that form the knee joint, namely the femur or thigh...

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  • Lateral Patellar Instability

    Lateral Patellar Instability

    Lateral patellar instability is defined as a lateral shift or displacement of the patella (kneecap) as a result of...

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  • Medial Patellar Instability

    Medial Patellar Instability

    Medial patellar instability is a disabling condition characterized by medial subluxation of the patella which...

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  • Medial Gastrocnemius Strain

    Medial Gastrocnemius Strain

    A medial gastrocnemius strain (MGS), also sometimes called “tennis leg”, is an injury to the calf muscle in the back of the leg.

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  • Distal Femur Fracture

    Distal Femur Fracture

    The femur or thigh bone is the longest and strongest bone in the body, connecting the hip to the knee.

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  • Terrible Triad Injuries

    Terrible Triad Injuries

    Terrible triad injury, also known as Unhappy triad or O’Donoghue triad, is a condition involving

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  • Articular Cartilage Injury (Knee)

    Articular Cartilage Injury (Knee)

    Articular or hyaline cartilage is the tissue lining the surface of the two bones in the knee joint. 

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  • Chronic Hamstring Tendinopathy

    Chronic Hamstring Tendinopathy

    Chronic hamstring tendinopathy is a condition characterized by a deep pain in the buttocks and upper part of the back of the thigh.

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  • Tibial Shaft Fracture

    Tibial Shaft Fracture

    A tibial shaft fracture is a crack or break in the middle section of the tibia bone due to severe trauma.

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  • Patellar Tracking Disorder/Patellar Maltracking

    Patellar Tracking Disorder/Patellar Maltracking

    Patellar tracking disorder, also known as patellar maltracking, is a condition in which the kneecap (patella) moves sideways from its groove...  

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  • Knee Fracture

    Knee Fracture

    A fracture is a condition in which there is a break in the continuity of the bone.

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  • Knee Osteoarthritis

    Knee Osteoarthritis

    Osteoarthritis also called degenerative joint disease, is the most common form of arthritis.

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  • Knee Sports Injuries

    Knee Sports Injuries

    Trauma is any injury caused during physical activity, motor vehicle accidents, electric shock, or other activities.

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  • Tibial Plateau Fracture

    Tibial Plateau Fracture

    A tibial plateau fracture is a crack or break on the top surface of the tibia or shinbone in the knee joint.

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  • Patellar Tendinitis

    Patellar Tendinitis

    Patellar tendinitis, also known as "jumper's knee", is an inflammation of the patellar tendon that connects your kneecap...

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  • Periprosthetic Knee Infection

    Periprosthetic Knee Infection

    A very small percentage of patients (less than 1%) who undergo knee replacement may develop an infection around the knee joint.

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  • Medial Meniscus Syndrome

    Medial Meniscus Syndrome

    Of the menisci within the knee, it is the medial that is more easily injured.

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  • Knee Stress Fractures

    Knee Stress Fractures

    Stress fractures of the patella or knee are very rare. Approximately two out of 10,000 athletes may experience a patella stress fracture.

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  • Osgood Schlatter Disease

    Osgood Schlatter Disease

    Osgood-Schlatter disease refers to a condition in older children and teenagers caused by excessive stress to the patellar tendon (located below the kneecap).

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  • Multiligament Knee Injuries

    Multiligament Knee Injuries

    Injury to more than one knee ligament is called a multiligament knee injury and may occur during sports or other physical activities.

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  • Patellofemoral Arthritis

    Patellofemoral Arthritis

    Patellofemoral arthritis is an inflammatory condition characterized by loss of the smooth cartilage between the kneecap...

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  • Tibial Eminence Fractures

    Tibial Eminence Fractures

    The tibial eminence, also called the tibial spine, is a bony protuberance of the tibia (shin bone) that attaches... 

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  • Knee Effusion

    Knee Effusion

    Knee effusion also known as water on the knee or swollen knee is a condition characterized by swelling in the knee joint...

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  • Stress Fracture of the Tibia

    Stress Fracture of the Tibia

    A stress fracture of the tibia or shinbone is a thin fracture, also called a hairline fracture that occurs in the tibia due to excess stress or overuse.

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  • Anterior Knee Pain

    Anterior Knee Pain

    Anterior knee pain is characterized by chronic pain over the front and center of the knee joint.

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  • Runner's Knee

    Runner's Knee

    Patellofemoral pain syndrome also called runner’s knee refers to pain under and around your kneecap.

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  • Michigan State University
  • University of Buffalo
  • Alpha Omega Alpha
  • Cleveland Clinic
  • Lenox Hill Hospital
  • American Academy of Orthopaedic Surgeons
  • American Orthopaedic Society for Sports Medicine