S80.0

Clinical Causes: Direct trauma from falls or collisions Sports injuries, especially contact sports like football, soccer, or basketball Accidental bumps against objects or furniture Blows from falling objects or equipment Motor vehicle accidents impacting the knee region

Key Symptoms: Pain or tenderness at the site of injury Swelling around the knee Discoloration or bruising of the skin (black, blue, or purple hues) Limited range of motion or stiffness Warmth or mild inflammation around the affected area Possible difficulty bearing weight or walking depending on severity

Diagnosis Path: Diagnosis typically involves a physical examination by a healthcare professional, who will assess the injury site for swelling, tenderness, and skin discoloration. In some cases, imaging tests like X-rays may be ordered to rule out other injuries such as fractures, especially if there is significant pain or deformity. Since a contusion primarily involves soft tissue, imaging helps confirm the absence of fractures or other structural damage.

Treatment Protocols: Treatment aims to reduce pain and swelling, promote healing, and restore knee function. Common approaches include: - Resting the knee to prevent further injury - Applying ice packs during the first 24 to 48 hours to decrease swelling and numb pain - Elevating the leg to facilitate fluid drainage - Using over-the-counter pain relievers like acetaminophen or NSAIDs (Non-Steroidal Anti-Inflammatory Drugs) - Wrapping the knee with elastic bandages or compression wraps for support - Gradual resumption of activities as pain subsides In cases of significant swelling or persistent pain, a healthcare provider may suggest additional interventions, such as physical therapy or, rarely, aspiration of accumulated blood if there is a large hematoma. Monitoring the injury for signs of infection or worsening symptoms is important in the healing process.