
Complex Regional Pain Syndrome (CRPS)

Complex regional pain syndrome (CRPS) is a chronic pain condition that often develops after an injury, surgery, or fracture. It is caused by dysfunction in the nervous system and inflammatory response, leading to pain that is out of proportion to the original injury. CRPS most often affects the hand, wrist, or arm, but it can occur in other body regions. Early recognition and treatment are essential for preventing long-term disability.
Diagnosis of CRPS
CRPS is diagnosed based on symptoms and clinical evaluation, as there is no single definitive test. Diagnosis may include:
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Medical history review (injury or surgery that triggered symptoms).
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Physical exam to assess pain sensitivity, swelling, temperature changes, and skin appearance.
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Diagnostic criteria such as the Budapest Criteria (used for CRPS classification).
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Imaging or bone scans may help rule out other conditions but are not required for diagnosis.
Treatment for CRPS
Physical therapy plays a crucial role in CRPS management by improving function, reducing pain, and restoring mobility. Treatment may include:
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Gentle manual therapy to mobilize stiff joints and soft tissue
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Desensitization techniques (gradual exposure to textures, temperatures, and touch)
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Range of motion exercises to prevent stiffness and contractures
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Graded motor imagery and mirror therapy to retrain the brain’s response to movement and pain
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Strengthening exercises for the affected limb as tolerated
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Pain management with modalities like heat, contrast baths, TENS, or ultrasound
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Education on pacing, relaxation strategies, and home exercise programs
Multidisciplinary care (including pain management, counseling, and medication) is often needed for best outcomes.
Symptoms of CRPS
Symptoms of CRPS can vary but often include:
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Severe, burning or throbbing pain out of proportion to the injury
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Swelling and stiffness in the hand, wrist, or arm
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Skin color or temperature changes (red, blue, pale, warm, or cold)
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Shiny or thin skin over the affected area
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Abnormal sweating in the region
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Weakness, tremors, or muscle spasms
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Decreased range of motion and difficulty using the hand or arm
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Symptoms that may spread beyond the original injury site
Prevention of CRPS
To lower the risk of worsening CRPS or to manage it long-term:
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Begin gentle movement as soon as cleared after an injury or surgery
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Follow all rehab protocols to avoid stiffness
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Manage swelling early with elevation, compression, and therapy
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Address stress and anxiety, which can worsen pain perception
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Continue with prescribed exercises and self-care strategies
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Seek early treatment if symptoms such as burning pain or color changes appear
