Artery problems from repeated strain (hypothenar hammer or popliteal entrapment)

Overview

Using the palm as a hammer can damage the artery in the hand. Some athletes have calf muscles that press on the knee artery.

Symptoms

Common signs:

• Cold, painful fingers

Less common

• Numb fingers
• Calf cramping with exercise

When to get medical care

Causes

Repeated strain.

Who is more likely to get it

• Workers who use the palm as a hammer: Highest risk
• Athletes in hand sports: Higher risk

Possible complications

• Gangrene: Rare, in fingertips

Diagnosis

A clinician asks about your symptoms and may order tests.

The exam

A physical exam.

Tests

Tests, if needed:

• Imaging:

Treatment

Treatment depends on the cause and how severe it is.

Self-care

• Avoid the repeated strain

Prevention

To lower your risk or prevent problems:

• Use tools instead of your palm
• Padded gloves

Which doctor treats this

• Urgent care or the ER can treat it first. For minor problems, your primary care provider can help.
• They may send you to a vascular specialist (blood vessel doctor).
• A physical therapist can help with exercises to rebuild strength and motion.

Living with it

Support groups and helplines

• Genetic and Rare Diseases Information Center (GARD): Free NIH information on rare diseases, including where to find experts and patient groups.
• National Organization for Rare Disorders (NORD): Patient groups, help finding care, and aid programs for rare diseases.

Back to school, work, or sports

• School or desk work is often OK within days. Jobs with lifting may need light duty for a while.
• Go back to sports only when your doctor says it's OK and you have full motion and strength without pain.

Children, pregnancy, and older adults

• Mechanics and carpenters: Higher risk.

Outlook

Treatment restores blood flow.

Getting ready for your visit

Bring a list of your symptoms and medicines.

What to bring

• A list of your medicines and supplements
• Notes on when symptoms started and what makes them better or worse

Questions to ask

• What's causing this?
• What treatment do you recommend?

Research studies

Research studies test new ways to find and treat health problems. Some are looking for volunteers. Talk with your doctor before joining one.

Search ClinicalTrials.gov for studies on Artery problems from repeated strain (hypothenar hammer or popliteal entrapment)