Leg angioplasty opens a narrowed or blocked artery from the inside through a small puncture, usually at the top of the thigh, using a balloon and sometimes a stent. It is usually done under local anaesthetic, takes from one to a few hours depending on the case, and most patients leave hospital within a day or two.
When leg arteries narrow from fat and calcium build-up, less blood reaches the muscles and foot. Peripheral angioplasty is now the first choice for many of these cases instead of open surgery.
Who needs it?
- Patients with intermittent claudication whose pain limits their life despite medication and walking.
- Patients with rest pain in the foot.
- Patients with diabetic foot and wounds that won't heal because of poor circulation.
Before the procedure
- A Doppler or CT angiogram to locate the narrowing.
- Kidney function and clotting tests, because contrast dye is cleared by the kidneys.
- Medication review: some diabetes and blood-thinning drugs may need adjusting as the doctor advises.
- Fasting for a few hours beforehand.
Step by step
- Local anaesthetic at the access site, usually the top of the thigh, with light sedation if needed.
- Access to the artery with a needle, then a thin tube (sheath) through which everything passes.
- Angiography with contrast to see the narrowing precisely on the X-ray screen.
- Crossing the narrowing with a fine wire, the most delicate step, especially in complete blockages.
- Balloon inflation to widen the artery from inside.
- Stent placement if needed: a metal mesh tube that stays in the artery to hold it open. Some balloons and stents are drug-coated to reduce re-narrowing.
- Final images, then closure of the access site by pressure or a closure device.
After the procedure
You lie flat for a few hours with the leg straight to avoid bleeding at the access site, then start walking gradually. Most patients leave within a day or two; diabetic foot patients may stay longer for wound care.
Medication and follow-up
Antiplatelet medicines are usually needed for a period set by the doctor, plus cholesterol medication. Doppler follow-up helps detect any re-narrowing early.
Risks
Angioplasty is relatively safe, but like any procedure it can have complications such as bruising or bleeding at the access site, kidney effects from contrast, or re-narrowing over time. Your doctor explains what applies to your case.
Frequently asked questions
Is leg angioplasty painful?
It is done under local anaesthetic; most patients feel only pressure or mild discomfort.
How long will I stay in hospital?
Most patients leave within a day or two; wound and diabetic foot cases may stay longer.
Does a stent stay for life?
Yes, the stent stays in the artery permanently and needs medication and regular follow-up.
Content on this website is for awareness only and does not replace a specialist medical examination.