Shoulder-Hand Syndrome

Overview

Shoulder-hand syndrome is a form of complex regional pain syndrome (CRPS) that causes pain, stiffness, and swelling affecting both the shoulder and hand on one side of the body. It most commonly develops after a stroke, heart attack, or an injury to the arm or shoulder, when abnormal signaling in the nervous system triggers ongoing pain and inflammation even after the original injury has healed.

Because shoulder-hand syndrome shares the same underlying mechanism as CRPS, early diagnosis and treatment are essential to prevent long-term stiffness and loss of function in the arm and hand. Our team in Jersey City evaluates and treats shoulder-hand syndrome using a combination of interventional pain procedures, physical therapy, and medication management tailored to each patient’s stage of the condition.

shoulder-hand syndrome

Symptoms

Symptoms of shoulder-hand syndrome typically develop gradually and can include:

  • Burning or aching pain in the shoulder that radiates down the arm to the hand
  • Swelling and puffiness in the hand and fingers
  • Stiffness and reduced range of motion in the shoulder and wrist
  • Skin changes, including warmth, redness, or a shiny appearance
  • Sensitivity to touch or temperature changes in the affected arm
  • Muscle weakness or, in later stages, muscle wasting and joint contractures

Symptoms often begin on one side of the body and may worsen without treatment, making early evaluation important.

Causes

Shoulder-hand syndrome most often develops as a complication of:

  • Stroke, particularly when one arm is left immobile during recovery
  • Heart attack (myocardial infarction)
  • Shoulder or arm injury, including fractures, sprains, or surgery
  • Prolonged immobilization of the shoulder or arm, such as after a cast or sling
  • Cervical spine conditions that affect nerve signaling to the arm

The exact mechanism isn’t fully understood, but it’s believed to involve abnormal signaling between the nervous system and blood vessels, leading to inflammation, changes in blood flow, and heightened pain sensitivity in the affected limb.

Diagnosis

There is no single test for shoulder-hand syndrome. Diagnosis is typically based on a physical examination, a review of your medical history (including any recent stroke, heart attack, or arm injury), and ruling out other conditions with similar symptoms, such as rotator cuff injury or arthritis. Your provider may also use:

  • X-rays or MRI to evaluate the joints and rule out structural damage
  • Bone scans, which can show characteristic changes in blood flow and bone metabolism associated with CRPS
  • Nerve conduction studies, if nerve involvement is suspected

Early diagnosis significantly improves the chances of restoring full function in the shoulder and hand.

Treatment Options

Most cases of shoulder-hand syndrome are managed without surgery. Treatment options include:

  • Physical and occupational therapy to preserve range of motion and prevent stiffness
  • Sympathetic nerve blocks (such as a stellate ganglion block) to interrupt abnormal pain signaling
  • Anti-inflammatory medications or corticosteroids to reduce swelling
  • Nerve pain medications to manage chronic burning or aching pain
  • Desensitization therapy for patients with heightened sensitivity in the hand

Starting treatment early, especially within the first few months of symptoms, offers the best chance of a full recovery.

Surgical Treatment

Surgery is rarely needed for shoulder-hand syndrome but may be considered in select cases where conservative treatment hasn’t relieved symptoms, particularly if a sympathetic nerve block provides significant but temporary relief. In these cases, a spinal cord stimulator or other advanced pain management procedure may be recommended to provide longer-lasting relief and support continued participation in physical therapy.

When to Seek Evaluation

If you’ve had a stroke, heart attack, or shoulder injury and notice new pain, swelling, or stiffness in your shoulder and hand, don’t wait to get evaluated. Shoulder-hand syndrome responds best to treatment when it’s caught early — delays can lead to permanent stiffness and loss of function. Contact Urban Spine and Joint in Jersey City to schedule an evaluation with our pain management specialists.

Frequently Asked Questions

Shoulder-hand syndrome is a form of complex regional pain syndrome (CRPS) that causes pain, swelling, and stiffness affecting the shoulder and hand together on one side of the body. It’s often triggered by a stroke, heart attack, or injury to the arm or shoulder.

Yes. Shoulder-hand syndrome is considered a specific presentation of CRPS Type I that affects the shoulder and hand. It shares the same underlying causes and treatment approach as CRPS elsewhere in the body.

After a stroke, the affected arm is often left immobile, which can disrupt normal nerve signaling and blood flow to the shoulder and hand. This immobility, combined with changes in the nervous system, can trigger the pain, swelling, and stiffness seen in shoulder-hand syndrome.

Treatment usually starts with physical therapy, anti-inflammatory medication, and sympathetic nerve blocks to interrupt abnormal pain signals. Starting treatment early — ideally within the first few months of symptoms — offers the best chance of restoring full movement and function.

Early mobilization and physical therapy after a stroke, heart attack, or shoulder injury can reduce the risk of developing shoulder-hand syndrome. If you notice early signs of shoulder or hand pain and swelling during recovery, prompt evaluation can help prevent the condition from progressing.