
Hypertrophic osteoarthropathy is a syndrome characterized by periosteal reaction of the long bones without underlying bone lesion. There are a broad range of manifestations, although typically there is symmetrical involvement of the appendicular skeleton.
What is hypertrophic osteoarthropathy?
Hypertrophic osteoarthropathy (HOA) is a condition that causes clubbing of the fingers or toes. People with HOA will have: Enlarged ends of their fingers or toes. Nails that slope downward. Underlying health problems may cause hypertrophic osteoarthropathy. But sometimes, people with HOA don’t have any other health conditions.
What is the pathophysiology of pulmonary osteoarthropathy?
any disease of the joints and bones. hypertrophic pulmonary osteoarthropathy ( secondary hypertrophic osteoarthropathy) symmetrical osteitis of the four limbs, chiefly localized to the phalanges and terminal epiphyses of the long bones of the forearm and lower leg; it is often secondary to chronic lung and heart conditions.
What causes secondary hypertrophic osteoarthropathy (Sho)?
Genetics cause primary hypertrophic osteoarthropathy (PHO), while underlying health conditions, especially lung and heart conditions, cause secondary hypertrophic osteoarthropathy (SHO). Besides clubbing, other symptoms may include tender ankles, knees or wrists, swollen legs and thickened facial skin.
What are the signs and symptoms of secondary hypertrophic osteoarthropathy?
Patients with secondary hypertrophic osteoarthropathy can present with acute, severe, burning bone pain and a noninflammatory arthritis caused by periarticular periostitis. Pain is accentuated by dependency of the limbs. Pitting edema, warmth, and tenderness of the legs and forearms can be seen.

What causes hypertrophic osteoarthropathy?
Hypertrophic osteoarthropathy (HOA) is mainly caused by mainly fibrovascular proliferation. It is characterized by a combination of clinical findings, including severe disabling arthralgia and arthritis, digital clubbing, and periostosis of tubular bones with or without synovial effusion.
How is hypertrophic osteoarthropathy treated?
Primary hypertrophic osteoarthropathy Medical care is palliative and includes nonsteroidal anti-inflammatory drugs (NSAIDs), corticosteroids, tamoxifen, retinoids, and risedronate to alleviate the painful polyarthritis/osteoarthropathy. Colchicine may be helpful for the pain due to subperiosteal new bone formation.
Is hypertrophic osteoarthropathy painful?
Hypertrophic pulmonary osteoarthropathy is a paraneoplastic syndrome seen in patients with lung cancer. This condition is characterized by the presence of digital clubbing, periosteal thickening, synovial thickening, and severe pain of the affected joints.
What does osteoarthropathy mean medically?
Medical Definition of osteoarthropathy : a disease of joints or bones specifically : hypertrophic osteoarthropathy. — called also acropachy.
How is hypertrophic osteoarthropathy diagnosed?
The diagnostic criteria for hypertrophic osteoarthropathy (HOA) include clubbing and periostosis of the tubular bones. Three incomplete forms of hypertrophic osteoarthropathy are described: Clubbing alone. Periostosis without clubbing in the setting of an illness known to be associated with HOA.
What is the most common cause of secondary hypertrophic osteoarthropathy?
The most common causes of secondary hypertrophic osteoarthropathy are lung diseases. When lung diseases cause this condition, the name of the condition is hypertrophic pulmonary osteoarthropathy (HPOA). The most common lung disease that causes HPOA is lung cancer, especially non-small cell lung cancer.
Is Osteoarthropathy arthritis?
Osteoarthritis is the most common form of arthritis, affecting millions of people worldwide. It occurs when the protective cartilage that cushions the ends of the bones wears down over time. Although osteoarthritis can damage any joint, the disorder most commonly affects joints in your hands, knees, hips and spine.
What does hypertrophic bone mean?
Hypertrophic osteoarthropathy (HOA) is a syndrome characterized by clubbing of the digits, periostitis of the long (tubular) bones, and arthritis. It is also known as pachydermoperiostosis (PDP). HOA can be primary (hereditary or idiopathic) or secondary.
What causes bone hypertrophy?
Between 80 and 90% of secondary hypertrophic osteoarthropathy is associated with non–small cell lung cancer. Other causes include other neoplasms (mesothelioma), chronic pulmonary infections, congenital heart disease, cirrhosis, HIV infection, and inflammatory bowel disease.
Is arthritis and arthropathy the same?
Arthropathy is a joint disease, of which arthritis is a type. Arthropathies can be associated with a hematologic (blood) disorder or an infection, such as Lyme disease.
What foods should be avoided if you have osteoarthritis?
5 Foods to AvoidRed meat and fried foods. Fried foods and red meat contain high levels of advanced glycation end products (AGEs), which are known for stimulating inflammation. ... Sugars. ... Dairy. ... Refined carbohydrates. ... Alcohol and tobacco.
What are the 4 stages of osteoarthritis?
The main stages of OA are:Stage 0 (pre-osteoarthritis)Stage 1 (early or doubtful)Stage 2 (mild or minimal)Stage 3 (moderate)Stage 4 (severe)
Is Hod in dogs curable?
The clinical signs associated with HOD in dogs can resolve in as little as one week with appropriate treatment. However, there is a chance of relapse until your dog's long bones have finished growing. HOD in dogs cannot be cured, but it can be managed.
How do you test for hypertrophic pulmonary osteoarthropathy?
Plain radiograph. Typically seen as long bone metaphyseal and diaphyseal smooth periosteal reaction. With disease progression, periostitis becomes more prominent or multilayered and extends to the epiphyses 1.
What causes bone hypertrophy?
Between 80 and 90% of secondary hypertrophic osteoarthropathy is associated with non–small cell lung cancer. Other causes include other neoplasms (mesothelioma), chronic pulmonary infections, congenital heart disease, cirrhosis, HIV infection, and inflammatory bowel disease.
Is Osteoarthropathy arthritis?
Osteoarthritis is the most common form of arthritis, affecting millions of people worldwide. It occurs when the protective cartilage that cushions the ends of the bones wears down over time. Although osteoarthritis can damage any joint, the disorder most commonly affects joints in your hands, knees, hips and spine.
Terminology
Clinical Presentation
- Hypertrophic osteoarthropathy has a variable clinical presentation, ranging from asymptomatic morphologic and radiographic findings to pain accompanying the changes of the fingers and toes 5.
Pathology
- The primary form of hypertrophic osteoarthropathy is due to mutations in the genes encoding 15-hydroxyprostaglandin dehydrogenase and solute carrier organic anion transporter family member 2A1, resulting in abnormal accumulation of prostaglandin E2 5. Although the cause of secondary hypertrophic osteoarthropathy is not established, a similar mechanism involving abnormally elev…
Radiographic Features
- Typically seen as long bone metaphyseal and diaphyseal smooth periosteal reaction. With disease progression, periostitis becomes more prominent or multilayered and extends to the epiphyses1. 1. symmetric linear increase in tracer accumulation along diaphyseal and metaphyseal surfaces of long bones 4 2. tram-track sign
Treatment and Prognosis
- The success of treatment depends on whether the hypertrophic osteoarthropathy is due to a primary or a secondary cause. Most successful treatment and rapid regression of hypertrophic osteoarthropathy is achieved in cases where the underlying cause is identified and treated; such as a radically treated lung tumor. The results are less successful in the presence of metastatic d…
Differential Diagnosis
- General imaging differential considerations include: 1. pachydermoperiostosis (primary hypertrophic osteoarthropathy) 2. chronic venous insufficiency 3. thyroid acropachy 4. hypervitaminosis A 5. voriconazole induced periostitis Consider the differential for a smooth periosteal reaction. On bone scintigraphy, differentials include: 1. normal variant 1.1. lateral corti…