M23.04

Clinical Causes: Degenerative changes in the knee joint due to aging Trauma or injury to the knee resulting in tears or degeneration of the meniscus Repeated stress or overuse, particularly in athletes or active individuals Congenital abnormalities affecting meniscal structure Development of ganglion cysts due to repetitive minor injuries or degeneration

Key Symptoms: Knee pain, especially when twisting or bending Swelling or a feeling of fullness in the knee Limited range of motion or stiffness Locking or clicking sensations during movement Tenderness along the lateral side of the knee Feeling of instability or giving way

Diagnosis Path: To diagnose a cystic meniscus of the anterior horn of the lateral meniscus, healthcare professionals typically perform a thorough clinical examination, assessing knee function and palpating for tenderness. Advanced imaging modalities like MRI (Magnetic Resonance Imaging) are essential for confirming the presence of cysts, detailing their size, location, and relation to surrounding structures. MRI provides detailed visualization of soft tissues, helping distinguish cysts from other possible knee abnormalities.

Treatment Protocols: Management of a cystic meniscus may vary depending on the severity of symptoms and the size of the cyst. Potential treatment options include: - Conservative approaches such as rest, ice application, and anti-inflammatory medications to reduce swelling and pain. - Physical therapy exercises aimed at strengthening muscles around the knee for improved stability. - Aspiration of the cyst may be performed in some cases, with the removal of fluid to alleviate symptoms. - Arthroscopic surgery, which involves minimally invasive procedures to remove or repair the affected meniscus tissue and excise the cyst, is often recommended for persistent or significant symptoms. Post-treatment rehabilitation focuses on restoring knee function, improving flexibility, and strengthening surrounding muscles to prevent recurrence.