Knee Pain Diagnosis Chart
A chart showing diagnosis of various knee pain conditions from all sides of the knee can be really helpful when it comes to understanding what’s causing pain in your knee. Numerous structures can cause pain in and around the knee. Self-diagnosing knee pain accurately becomes easier when you know what usually causes pain in each area of the knee.
Front Knee Pain Diagnosis Chart
Here is a knee pain diagnosis chart that focuses on the pain at the front of the knee. A second image, further down, focuses on the problem in the posterior side of the knee.
A. Yellow:- (Pain Above the Knee Cap)
- Quardriceps Tendenopathy: This pain can be due to quadriceps tendinopathy. This condition damages the quadriceps tendon and causes pain typically above the kneecap.
B. Red:- (Pain At The Kneecap)
- Patellofemoral Pain Syndrome: This knee pain condition develops when there is a damage to the kneecap moves or a problem with how it moves.
- Chondromalacia Patella: It commonly occurs in healthy people under 40 can damage the cartilage present at the back of the kneecap.
- Arthritis: Various types of arthritis can cause pain in this region. It usually develops due to degeneration or wear and tear of the knee cartilages and bones.
C . Blue:- (Outer Knee Pain)
- Iliotibial Band Syndrome: Most commonly, pain in this region is secondary to iliotibial band syndrome. It occurs due to irritation of the thick, soft tissue band that runs from the outer leg to the knee.
- Lateral Collateral Ligament (LCL) Injury: LCL injury typically occurs after tearing or overstretching of the LCL. It causes severe pain on the lateral side of the knee.
- Lateral Meniscus Tears: Damage to the knee cartilage (lateral portion) can cause lateral meniscus tears. It usually develops after trauma and makes it difficult to straighten the leg.
Back Knee Pain Diagnosis Chart
The following is the chart that focuses on pain at the back of the knee.
A. Red:- (Pain Behind The Knee)
- Baker’s Cyst: A cyst is a collection of pus (infected skin cells and germs). Baker’s cyst occurs due to inflammation of the popliteal bursa and is the most common cause of pain, redness, and swelling behind the knee.
- Arthritis: Various types of arthritis can cause pain in the back of the knee. It occurs due to degeneration or wear and tear of the knee cartilage and bones. This condition causes severe pain and stiffness in the morning.
- ACL Tear: Anterior cruciate ligament is prone to injury and trauma due to sudden twisting or force through the knee.
- PCL Tear: Although less common than ACL injury, posterior cruciate ligament is also prone to injuries and can cause pain and swelling in the back of the knee.
B. Yellow:- (Posteromedial Knee Pain)
- Hamstring Tendinopathy: Semimembranosus or semitendinosus are the two hamstring muscles on the inner side of the knee. Inflammation or degeneration of these muscles causes severe pain in the posteromedial region of the knee joint.
C. Blue:- (Posterolateral Knee Pain)
- Biceps Femoris Tendinopathy: Tear in the biceps femoris is a common cause of pain in the posterolateral side of the knee. It is most common in runners and can cause inflammation and pain.
D. Purple:- (Lateral Pain Below The Knee)
- Lateral Head of Gastrocnemius Injury: Gastrocnemius is a superficial calf muscle prone to injuries and trauma. Tears of this muscle or associated ligaments and cartilages can cause pain and swelling in the lateral part of the posterior knee.
E. Pink:- (Medial Pain Below The Knee)
- Medial Head of Gastrocnemius Injury: Tears of this muscle usually occur during sports, such as basketball and soccer. It causes pain in the medial side of the posterior knee.
F. Green :- (Pain Below The Knee)
- Calf Tear: Tearing or overstretching of one of the calf muscles can cause pain, immediate swelling, and bruising below the knee.
- Calf Muscle Cramps: Cramping and sudden spasm of the calf muscles is very common among athletes. It often causes severe pain below the posterior knee; however, the pain usually subsides within a few minutes.
- Housemaids Knee: It is a term referred to localized swelling at the front of the knee. It occurs due to inflammation of the prepatellar bursa and commonly involves housemaids and other people who spend lots of time kneeling.
- DVT: Deep venous thrombosis happens secondary to a blood clot in one of the deep leg veins. DVT is a medical emergency that can cause intense pain, swelling, redness, and tenderness in the local area.