Lower Limb Angioplasty
Lower Limb Angioplasty is a minimally invasive endovascular procedure that widens narrowed or blocked leg arteries using a balloon catheter — immediately restoring blood flow to the lower limb, relieving claudication and rest pain, and promoting healing of ischaemic foot wounds without open bypass surgery.
Overview
Lower Limb Angioplasty uses a catheter-based balloon inflated across an arterial stenosis or short occlusion to mechanically widen the narrowed vessel, with stent placement where balloon angioplasty alone does not achieve a sustained result. The procedure accesses the arterial system through a femoral artery puncture under local anaesthesia, and the balloon and stent are delivered under real-time fluoroscopic roadmap guidance to the precise stenotic segment. Lower limb angioplasty is the first-line revascularisation treatment for most focal peripheral arterial disease lesions — its minimal invasiveness, immediate blood flow improvement, and short recovery time make it the preferred approach for anatomically suitable stenoses in the iliac, femoral, and below-knee arteries.
Types of Lower Limb Peripheral Intervention
Peripheral vascular intervention encompasses a range of endovascular techniques tailored to the location and morphology of the arterial lesion.
- Balloon Angioplasty (PTA — standard balloon for most stenoses and short occlusions)
- Drug-Coated Balloon (DCB — paclitaxel-coated balloon reducing restenosis in femoral disease)
- Self-Expanding Nitinol Stent (for iliac and femoral disease — treats elastic recoil)
- Drug-Eluting Stent (DES — for specific femoral popliteal disease patterns)
- Atherectomy Device (mechanical plaque removal before balloon angioplasty)
Risk Factors for Lower Limb Peripheral Arterial Disease
PAD requiring angioplasty shares common modifiable cardiovascular risk factors.
- Smoking — the dominant modifiable risk factor for peripheral arterial disease
- Diabetes causing accelerated tibial and below-knee vessel disease
- Hypertension and hyperlipidaemia promoting superficial femoral and iliac disease
- Renal failure — strongly associated with calcified tibial vessel disease
- Age above 65 — PAD prevalence is highest in older patients
- Male sex — higher PAD prevalence than women in equivalent age groups
Lower Limb Ischaemia Symptoms Requiring Angioplasty
These symptoms indicate significant peripheral arterial disease requiring duplex and CT angiographic assessment and consideration of endovascular revascularisation.
- Intermittent claudication — reproducible calf or thigh pain walking that resolves within 5 minutes of rest
- Claudication at short distances below 200 metres significantly limiting daily life
- Critical limb ischaemia — ischaemic rest pain in the foot worse at night
- Non-healing foot or ankle ulcers or wounds despite optimal wound care
- Reduced Ankle Brachial Index below 0.7 on vascular assessment
- Gangrenous changes in toes requiring revascularisation to allow healing after minor amputation
- Recurrent claudication after previous bypass graft or angioplasty with confirmed re-stenosis
- CT angiogram demonstrating focal iliac, femoral, or tibial stenosis amenable to angioplasty
Key Benefits
Discover the advantages of choosing our lower limb angioplasty services.
Minimally invasive procedure restores arterial flow without the recovery of open bypass surgery
Immediate haemodynamic improvement confirmed by completion angiogram before leaving the suite
Short hospital stay with same-day or next-day discharge
Preserves all future surgical options if angioplasty fails or restenoses
Ultrasound access guidance dramatically reduces groin access complications compared to landmark technique
Clinical Features
The technology, techniques and clinical approach behind our lower limb angioplasty.
Ultrasound-guided femoral puncture reduces access site haematoma and false aneurysm risk
Fluoroscopic roadmap guidance tracks guide wire and catheter position throughout the procedure
Balloon waist effacement under fluoroscopy confirms complete lesion dilatation before deflation
Drug-coated balloon or drug-eluting stent reduces restenosis risk in femoropopliteal disease
Completion angiogram in multiple projections confirms patency and excludes access or vessel complications
Preparation Instructions
After Lower Limb Angioplasty, take all prescribed dual antiplatelet medications (aspirin and clopidogrel) consistently — never stop these without consulting your vascular surgery team as stopping them risks acute in-stent thrombosis. Attend duplex surveillance at 6 weeks, 3 months, and 6 months to detect early restenosis before complete re-occlusion occurs. Stop smoking completely and permanently — this is the single most important factor in maintaining the long-term result of the angioplasty. Contact your vascular surgery team immediately for sudden return of severe leg pain, cold foot, or absent pulses suggesting re-occlusion.
The Procedure
Step-by-step guide to what you can expect during your lower limb angioplasty procedure.
CT Angiogram Review and Procedural Planning
Your interventional vascular surgeon reviews the CT angiogram to identify the precise arterial segment requiring treatment, measure the stenosis length, assess vessel calibre, and select the appropriate balloon diameter and length — or stent type — for the planned intervention.
Femoral Artery Access Under Ultrasound
The common femoral artery is punctured under real-time ultrasound guidance and a 6 French introducer sheath is placed. Heparin is administered intra-arterially. The access route — ipsilateral antegrade for below-knee disease or contralateral crossover for SFA disease — is selected based on the target lesion location.
Guide Wire Crossing of the Stenosis
Under fluoroscopic roadmap guidance, a 0.035 or 0.018 inch guide wire is carefully advanced across the stenosis or occlusion. Successful wire crossing is confirmed by position in a true arterial lumen beyond the diseased segment before any balloon or stent is introduced.
Balloon Dilatation Under Fluoroscopy
The appropriately sized balloon catheter is advanced over the guide wire, positioned precisely across the stenosis, and inflated to the nominal pressure for 60 to 90 seconds — the balloon waist confirmed to fully efface on fluoroscopy before deflation confirms complete lesion dilatation.
Stent Deployment Where Indicated
A self-expanding nitinol stent or drug-eluting stent is deployed across the treated segment if there is significant elastic recoil, flow-limiting dissection, or residual stenosis above 30% after balloon angioplasty alone. Stent position and expansion are confirmed on post-deployment fluoroscopy.
Completion Angiogram and Access Closure
A completion angiogram in multiple projections confirms widely patent treated vessel, unobstructed distal flow, and absence of major dissection or complications. The access sheath is removed and haemostasis is achieved with manual compression or a closure device before discharge.
What to Expect
Lower Limb Angioplasty is performed under local anaesthesia with conscious sedation and takes 60 to 90 minutes. The femoral artery is accessed under ultrasound guidance, a sheath is placed, and catheters and wires are navigated under fluoroscopic roadmap guidance to the stenotic segment. The balloon is inflated precisely across the lesion and a stent deployed where indicated — confirmed by completion angiography showing widely patent artery and restored distal flow. You recover briefly in the vascular ward before discharge the same day or the following morning.
Frequently Asked Questions
Common questions about lower limb angioplasty.
Related Services
Explore other services in our Vascular Surgery department.
Thrombectomy Bypass
AV Fistula
Carotid Endarterectomy
Ready to Get Started?
Schedule your consultation today and take the first step towards better health.