Isolated Limb Perfusion (ILP) for Sarcoma

What Is Isolated Limb Perfusion?

Isolated limb perfusion — often shortened to ILP — is a way of giving chemotherapy to one arm or leg only, completely separately from the rest of the body. During the operation, the surgeon exposes the main artery and vein that feed the limb, clamps them, and connects them to a heart-lung machine (the same kind of pump and oxygenator used in cardiac surgery). A tourniquet at the top of the limb seals it off so that no blood — and no drug — leaks into your general circulation. The limb is then perfused with warmed, high-dose chemotherapy for around an hour before being thoroughly washed out and reconnected to your normal blood supply.

The reason this is done is simple but powerful. Some sarcoma drugs, given into a vein, would be lethal at the dose needed to kill a bulky tumour. By isolating the limb, the team can deliver a concentration of drug perhaps 15 to 20 times higher than the body could ever tolerate systemically — right where the cancer is — while the rest of you is protected behind the tourniquet. This is what ilp sarcoma treatment is built around: maximum local effect, minimum whole-body toxicity.

ILP is not a first-line treatment for every sarcoma. Most limb sarcomas are still best treated with planned wide local excision and, where needed, radiation. ILP belongs to a smaller group of patients whose tumour cannot be removed cleanly, and for whom the alternative would otherwise be losing the limb. You can see how it fits into the wider picture on our sarcoma treatment in Hyderabad page, or read about every sarcoma topic on the sarcoma — overview hub.

Who Is Isolated Limb Perfusion For?

ILP is a specialist, limb-salvage option — not a routine treatment. It is considered when a sarcoma in the arm or leg cannot be removed with a clear margin by surgery alone, and when the only other realistic option would be amputation. A tumour board weighs each case carefully, but the situations where ILP is most often discussed include:

It is important to be honest about scope: ILP is a regional treatment. It works on the limb, not on cancer that has already spread to the lungs or elsewhere. That is why ILP is always combined with full staging and a clear discussion of the whole picture. For tumours that can be removed with surgery, a planned limb-sparing surgery for sarcoma remains the standard — ILP is the extra tool that widens who can keep their limb.

How Isolated Limb Perfusion Is Performed, Step by Step

ILP is a major procedure carried out under general anaesthesia in an operating theatre, with an oncology surgeon, a perfusionist running the heart-lung machine, and an anaesthetist all working together. It typically takes several hours and is followed by a short ICU or high-dependency stay. Here is what happens, in order.

In the days afterwards, the treated limb often swells and reddens — an expected reaction to the perfusion — and is monitored closely. Tumour shrinkage is not instant: response is assessed with an MRI usually a few weeks later, and if the tumour has pulled away from vital structures, a planned wide local excision of the shrunken mass is performed to complete the treatment.

What Results and Risks Should You Expect?

ILP is offered because, for the right patient, the chance of keeping the limb outweighs the risks. An honest conversation about both is part of every CION consultation.

Crucially, ILP is one piece of a complete plan, not a standalone cure. Staging scans (CT chest and often a PET) check for spread before treatment; the tumour-board reviews response afterwards; and surgery, radiation, or systemic chemotherapy may still be needed. The goal — saving a functional limb without compromising your overall cancer treatment — is only achieved when all of these are coordinated together.

ILP Compared With Other Limb-Salvage Options

Isolated limb perfusion is not the only way to avoid amputation, and it is not always the right one. The tumour board's job is to match the technique to the tumour. Neoadjuvant (pre-surgery) radiation or chemotherapy can shrink many tumours enough for limb-sparing surgery without a perfusion at all. Wide local excision with reconstruction handles most resectable tumours directly. ILP comes into its own for the locally advanced or multifocal limb sarcoma where those routes alone would still cost the patient their limb.

There is also a lighter-touch cousin called isolated limb infusion (ILI), a less invasive version that uses thin catheters rather than open vessel exposure; it is gentler but generally less potent, and the choice between the two is, again, a tumour-board decision based on the tumour and the patient's fitness.

Indicative Cost in Hyderabad

Costs are indicative. A personalised estimate is provided after your CION consultation. EMI options and cashless support through major TPAs, Aarogyasri, CGHS, ECHS & ESI are available for eligible patients.

Why Patients Choose CION for Limb-Salvage Sarcoma Care

A decision to save or sacrifice a limb is one of the hardest in cancer care. Here is why patients trust CION to weigh every option honestly.

Don't Decide on Amputation Without a Second Opinion

If you have been told a limb sarcoma is unresectable or that amputation is needed, a specialist sarcoma team may see options you have not been offered. Talk to CION before you decide.