M22.02

Clinical Causes: Anatomical abnormalities such as shallow trochlear groove or malalignment of the limb Weakness or imbalance of the muscles around the knee, especially the quadriceps Trauma or injury to the knee that damages soft tissues supporting the patella Ligament laxity or hypermobility conditions Previous dislocations leading to weakened supporting structures

Key Symptoms: Repeated episodes of the kneecap slipping out of its normal track Sudden pain during or after a dislocation event Swelling and tenderness around the kneecap A feeling of instability or the knee giving way Difficulty in straightening or bending the knee fully Visible deformity or abnormal positioning of the kneecap

Diagnosis Path: Diagnosis primarily involves physical examination and patient history, focusing on episodes of kneecap dislocation and knee stability. Imaging tests such as X-rays help identify structural abnormalities, assess the extent of dislocation, and rule out associated injuries like fractures. Sometimes, MRI scans are used to evaluate soft tissues including ligaments and cartilage, providing a comprehensive view of knee health.

Treatment Protocols: Management of recurrent patella dislocation aims to stabilize the kneecap and prevent future episodes. Treatment options include: - **Conservative approaches:** - Rest and activity modification to avoid movements that trigger dislocation - Physical therapy focused on strengthening the quadriceps and stabilizing muscles - Use of knee braces or taping techniques to support the kneecap - **Surgical interventions:** - Realignment procedures to correct anatomical abnormalities - Reconstruction of torn ligaments or soft tissues - Procedures to deepen the trochlear groove - Lateral release to reduce tension on the kneecap Choosing the appropriate treatment depends on the severity of dislocation episodes, underlying causes, and patient activity levels. Post-treatment rehabilitation is vital for restoring knee function and preventing recurrence.