M13.152

Clinical Causes: Osteoarthritis: Degeneration of joint cartilage leading to joint pain and inflammation. Infections: Bacterial, viral, or fungal infections can invade the joint space, causing inflammation. Trauma or injury: A fracture, dislocation, or soft tissue injury can trigger monoarthritis. Gout or pseudogout: Crystal deposition within the joint causes intense pain and swelling. Autoimmune diseases: Conditions like rheumatoid arthritis may initially present as monoarthritis. Other inflammatory conditions: Such as reactive arthritis or bursitis affecting the hip. Degenerative or age-related changes: Wear and tear in older adults may result in monoarthritis.

Key Symptoms: Pain localized to the left hip, which may worsen with movement or activity. Swelling and warmth around the affected joint. Stiffness, particularly after a period of inactivity or in the morning. Reduced range of motion, making it difficult to move the hip freely. Tenderness when touching the joint area. Possible redness around the skin overlying the joint. In cases caused by infection, fever and chills may also occur.

Diagnosis Path: Blood tests: To check for infection, inflammation, or autoimmune markers. Imaging studies: X-rays can reveal joint damage, while MRI or ultrasound provide detailed images of soft tissues and early changes. Joint aspiration: Extracting synovial fluid from the joint to analyze for signs of infection, crystals, or inflammation. Other laboratory tests: Specific tests may be ordered based on suspected causes.

Treatment Protocols: Rest and immobilization of the affected joint to reduce inflammation and prevent further injury. Applying ice packs to control swelling and pain. Nonsteroidal anti-inflammatory drugs (NSAIDs): To relieve pain and decrease inflammation. Physical therapy: Exercises to improve joint mobility and strengthen surrounding muscles. Treating underlying infections with antibiotics or antivirals, if necessary. Gout management: Medications to lower uric acid levels and prevent crystal formation. In severe cases or persistent symptoms, corticosteroid injections into the joint may be recommended. Surgical intervention: Procedures such as joint drainage or, in advanced cases, hip replacement surgery.