G90.513

Clinical Causes: Previous injury or trauma to the upper limbs, such as fractures or sprains Surgery or invasive procedures on the arms or shoulders Nerve damage or malfunction following injury Prolonged immobilization of the limbs Certain medical conditions that disrupt the nervous system

Key Symptoms: Severe, burning pain that persists beyond the expected healing period Swelling and edema in both upper limbs Changes in skin color and texture, often with shiny or mottled skin Temperature sensitivity, with limbs feeling warmer or cooler than surrounding areas Altered sweating patterns, leading to dryness or excessive sweating Tremors and uncontrollable movements in affected limbs Muscle weakness or atrophy over time Reduced range of motion and stiffness

Diagnosis Path: • Bone scans to reveal changes in bone density • Thermography to assess temperature variations • Sweat tests to measure abnormal sweating responses • MRI or ultrasound imaging to exclude other conditions • Nerve conduction studies to evaluate nerve function Understanding that symptoms may overlap with other conditions, healthcare providers will rule out alternatives such as infections, vascular issues, or joint disorders for accurate diagnosis.

Treatment Protocols: • Pain management using medications like analgesics, nerve pain medications, or corticosteroids • Physical therapy to maintain or improve limb function and prevent stiffness • Desensitization and graded motor imagery exercises • Sympathetic nerve blocks or injections to reduce abnormal nerve activity • Psychological support or counseling to address emotional and psychological aspects • Alternative therapies such as acupuncture or biofeedback • Patient education on limb care and activity management Each patient's response to treatment varies, emphasizing the importance of personalized care plans and ongoing medical supervision.