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Disease Comparison

Compare similarities and differences between two diseases.

Plantar Fasciitis

Mild
2
Symptoms
2
Causes
0
Treatments
5
FAQs
VS

Avascular Necrosis

Unknown
3
Symptoms
2
Causes
0
Treatments
5
FAQs

Overview

Plantar Fasciitis
Plantar fasciitis is a common cause of pain around the heel and bottom of the foot. It involves irritation or degeneration of the plantar fascia, a strong band of tissue that connects the heel bone with the toes and supports the arch of the foot. Pain is often most noticeable with the first steps after waking or resting.
Avascular Necrosis
Avascular necrosis, also called osteonecrosis, occurs when reduced blood supply causes bone tissue to die. It most often affects the hip but can involve other joints such as the knee, shoulder, or ankle. Early disease may cause no symptoms, while progressive damage can produce persistent pain, stiffness, reduced movement, and eventually collapse of the affected bone or joint surface. The condition may develop gradually and can be associated with injury, certain medicines, medical conditions, or other factors that impair blood flow to bone.

Symptoms

Shared
None
Only in Left Disease
Foot Pain Heel Pain
Only in Right Disease
Back Pain Bone Pain Increased Thirst

Causes

Shared
None
Only in Left Disease
Obesity Sedentary Lifestyle
Only in Right Disease
Alcohol Chronic Disease

Diagnosis

Plantar Fasciitis
Plantar fasciitis is usually diagnosed from the pattern of foot pain and a physical examination. The healthcare professional may examine the heel and plantar fascia and assess foot movement, walking pattern, and calf flexibility. Imaging is not usually required for typical cases but may be used when symptoms are persistent, severe, or suggest another cause of heel pain.
Avascular Necrosis
Diagnosis is based on symptoms, physical examination, medical history, and imaging of the affected bone. X-rays may appear normal in early disease, while magnetic resonance imaging can detect changes at an earlier stage. Additional imaging may help determine the extent of bone damage or joint collapse. Blood tests and other investigations may be used to identify an underlying condition or contributing cause, particularly when disease occurs at an unusual age or without an obvious risk factor.

Prevention

Plantar Fasciitis
Plantar fasciitis risk may be reduced by maintaining a healthy body weight, wearing supportive footwear, avoiding sudden increases in exercise, and gradually building activity levels. Regular stretching of the calf and plantar fascia may be useful for people at risk. Replacing worn-out athletic shoes and modifying activities that repeatedly cause heel pain can also reduce strain.
Avascular Necrosis
Some cases of avascular necrosis cannot be prevented, particularly when an underlying medical condition is responsible. Risk may be reduced by avoiding excessive alcohol consumption, using corticosteroids only as medically indicated, and discussing long-term corticosteroid exposure with a healthcare professional. Prompt assessment after significant joint or bone injury may be appropriate. People with medical disorders associated with osteonecrosis may benefit from appropriate management and monitoring for complications.

Risk Factors

Plantar Fasciitis
Risk factors include activities involving prolonged standing, walking, running, or other repetitive weight-bearing exercise. Flat feet, high arches, tight calf muscles, increased body weight, inappropriate footwear, and sudden increases in physical activity may increase stress on the plantar fascia. Occupations requiring long periods of standing may also contribute.
Avascular Necrosis
Risk factors include prolonged or high-dose corticosteroid use, heavy alcohol consumption, previous fractures or joint trauma, and certain medical conditions affecting blood vessels or blood clotting. Associations have also been reported with disorders such as sickle cell disease, lupus, certain metabolic disorders, and some organ-transplant or cancer-related conditions. The risk varies according to the underlying cause, duration of exposure, and the location and extent of impaired blood supply.

Treatment

Plantar Fasciitis
Treatment comparison will be available soon.
Avascular Necrosis
Treatment comparison will be available soon.