M22.4

Clinical Causes: Overuse or repetitive stress on the knee joint from activities such as running, jumping, or squatting. Misalignment of the kneecap, which can cause uneven pressure on the cartilage. Muscle imbalances around the knee that lead to abnormal tracking of the patella. Injury or trauma to the knee, such as a fall or blow. Structural abnormalities or anatomical variations, such as high-riding patella or shallow trochlear groove. Overweight or obesity, increasing stress on the knee joint. Inadequate footwear or improper training techniques that increase knee strain.

Key Symptoms: Dull, aching pain around or behind the kneecap, especially during activities like climbing stairs, squatting, or sitting for long periods. Increased pain after activity or prolonged sitting (theatre sign). Swelling or tenderness around the kneecap. A grating or grinding sensation when moving the knee. A feeling of weakness or instability in the knee. Difficulty fully extending or bending the knee.

Diagnosis Path: Diagnosis typically involves a detailed medical history and physical examination. The healthcare provider may assess how the kneecap moves and identify areas of tenderness. Imaging studies such as X-rays can reveal joint alignment and rule out other issues, while MRI scans help evaluate cartilage health and soft tissue conditions. Sometimes, diagnostic injections or arthroscopy may be used to confirm the diagnosis and assess the cartilage directly.

Treatment Protocols: Management of chondromalacia patellae focuses on alleviating symptoms and preventing further cartilage damage. Treatment options include: - Rest and activity modification to reduce knee strain. - Applying ice packs to decrease swelling and pain. - Non-steroidal anti-inflammatory drugs (NSAIDs) to manage inflammation. - Physical therapy aimed at strengthening the quadriceps muscles and improving patellar tracking. - Stretching exercises to improve flexibility and reduce tightness in surrounding muscles. - Use of knee braces or taping techniques to stabilize the patella. - Weight management if applicable to reduce joint stress. - In severe cases, minimally invasive procedures like cartilage debridement or realignment surgeries may be considered. A comprehensive approach tailored to individual needs and severity typically offers the best outcomes.