Causes and Mechanism of Articular Cartilage Damage - Injuries to ligaments and menisci - Previous surgical interventions - Traumatic accidents or falls - Wear and tear over time - Immobilization for long periods - Limited capacity for self-repair - Shallow damage may not trigger pain - Blood supply in the bone initiates healing process - Formation of fibrocartilage scar tissue - Small defects can progress to osteoarthritis if untreated

Diagnosis of Articular Cartilage Damage - No non-invasive tests available - Symptoms vary from person to person - MRI scans becoming more valuable - X-rays only show bone injuries - Arthroscopy is the best tool for diagnosis

Measuring Cartilage Damage - International Cartilage Repair Society grading system - Grade 0: Normal healthy cartilage - Grade 1: Soft spot, blisters, or superficial wear - Grade 2: Minor tears of less than half the thickness - Grade 3: Deep crevices of more than half the thickness - Grade 4: Full-thickness tear exposing underlying bone - Size of each defect is often measured - Location of the defect can influence symptoms and repair options - Pain is not a reliable indicator of damage extent - Untreated damage leads to worsening and higher grade defects

Treatment of Articular Cartilage Damage - Regenerative procedures aim to delay osteoarthritis - Intervention in early stages offers best results - Improves quality of life and reduces pain - Reduces knee swelling and mobility restrictions - Research focused on regenerating damaged joints

Summary - Articular cartilage damage can be caused by various factors, including injuries, previous surgeries, accidents, and wear and tear over time. - The limited self-repair capacity of articular cartilage can lead to the formation of fibrocartilage scar tissue. - Diagnosis of articular cartilage damage often requires arthroscopy, as non-invasive tests like MRI scans and X-rays are not sufficient. - Measuring cartilage damage is done using the International Cartilage Repair Society grading system, which considers the size and location of defects. - Treatment options for articular cartilage damage focus on regenerative procedures to delay osteoarthritis and improve quality of life. Early intervention offers the best results.