Not good enough for us, but good enough for them—no more.
For generations, the wealthiest nations have quietly exported their discarded prosthetic limbs to the world's poorest, with little thought given to whether those limbs actually worked. Now, a team led by King's College London has built the first standardized framework for these donations, cutting the rate of unusable prosthetics from one in six to one in twenty. It is a small technical intervention with a profound moral weight — a formal rejection of the idea that people in the Global South deserve less than everyone else.
- Millions of people living with limb loss in low-income countries have been quietly absorbing the cast-offs of wealthier health systems, receiving prosthetics with no quality checks and no accountability.
- The unregulated donation pipeline had become what some in the sector call 'medical equipment graveyards' — a system the WHO has condemned as a violation of ethical donation principles.
- Researchers surveyed hundreds of donated prosthetic feet from the UK, France, and the US, building a rigorous quality checklist that tested mechanical integrity and cosmetic condition across 366 devices.
- The results were unambiguous: usability jumped from 83 percent to 94 percent once the standards were applied, turning a well-meaning but broken system into one that actually delivers mobility and dignity.
- The framework now points toward a broader transformation — an NHS circular economy for prosthetics that could reduce medical waste and help the UK meet its legally binding net-zero targets by 2040.
For decades, prosthetic limbs deemed no longer suitable for patients in wealthy nations were boxed up and shipped to places like Uganda with almost no oversight. No one tested whether they worked. The assumption was quietly corrosive: if it's good enough to donate, it's good enough for them.
That assumption has now been formally challenged. An interdisciplinary team led by King's College London, working with prosthetists, academics, and charities, has designed the first standardized regulations for exporting used prosthetic feet to the Global South. Before these standards existed, 16 percent of donated prosthetics arrived unusable. With the new framework, that figure has fallen to 5 percent — a shift that translates directly into better mobility, less pain, and greater independence for hundreds of thousands of people.
The problem had long been hiding in plain sight. In the UK, prosthetic components are classified as single-patient devices and cannot legally be reused once fitted, even if barely worn. When patients' needs change, old prosthetics are discarded. Meanwhile, charities like STAND — which has rescued over 67 tonnes of components from landfills and helped nearly 6,000 people walk again — fill the gap in the Global South, but without quality assurance the system drifts toward a dumping ground. The WHO has condemned the practice outright.
The research team examined 366 prosthetic feet donated from the UK, France, and the United States, applying a detailed quality checklist covering mechanical integrity and cosmetic condition. The contrast was clear: 94 percent of feet processed after the checks were usable, compared to 83 percent before. Lead researcher Dr. Michael Berthaume put it plainly: the new framework says no to the 'not good enough for us, but good enough for them' mentality.
The implications reach beyond the Global South. The NHS has committed to cutting its carbon footprint by 80 percent by 2032 and reaching net zero by 2040. Discarding serviceable prosthetics to meet warranty restrictions runs directly against those goals. The research team envisions an MOT-style inspection system that would allow components to move safely between patients — a circular economy built not on convenience, but on dignity and sustainability. The framework now exists. Whether the world chooses to use it is another question entirely.
For decades, the world's wealthier nations have shipped prosthetic limbs to poorer countries with almost no oversight. A prosthetic foot deemed no longer suitable for a patient in London or New York—worn out from use, or simply replaced during routine maintenance—would be boxed up and sent to Uganda or elsewhere in sub-Saharan Africa. No one checked whether it actually worked. No one tested it. The assumption was simple: if it's good enough to donate, it's good enough for them.
That assumption has now been challenged by an interdisciplinary team led by King's College London, working alongside prosthetists, academics, and charities. They have designed the first standardized regulations for exporting used prosthetic feet to the Global South, and the results are stark. Before these standards existed, one in six donated prosthetics—16 percent—arrived unusable. With the new framework in place, that figure has dropped to 5 percent. For the hundreds of thousands of people living with limb loss in low- and middle-income countries, the difference is material: better-fitting prosthetics mean better mobility, less pain, and a genuine chance at the kind of life that wealthier patients take for granted.
The problem had been hiding in plain sight. In countries like the United Kingdom, prosthetic components are classified as single-patient, multi-use devices. Once fitted to one person, they cannot legally be reused on another, even if they are barely worn. When a patient's needs change, or when a prosthetic is replaced during routine maintenance, the old one is discarded. Meanwhile, in Uganda and across the Global South, people with limb differences have few options. Donations from wealthy nations fill a critical gap—but without any quality assurance, the system has become a dumping ground. Some in the charity sector have called it the creation of "medical equipment graveyards." The World Health Organization has condemned the practice as a violation of its principles of ethical donation.
The research team surveyed hundreds of lower-limb prosthetic feet donated from the UK, France, and the United States to STAND, a prosthetics charity operating in sub-Saharan Africa. They developed a detailed quality checklist, examining mechanical integrity and cosmetic condition. When they tested 366 prosthetic feet—different sizes, brands, left and right—the pattern emerged clearly. Of the 170 feet processed after the quality checks were implemented, 94 percent were usable. Of the 196 processed before, only 83 percent met the standard. The improvement was not marginal. It was transformative.
Tom Williams, CEO of STAND, which has rescued over 67 tonnes of components from landfills and helped nearly 6,000 people walk again, called the research "a foundation for increasing the quality of donated prosthetic devices." Dr. Michael Berthaume, the lead researcher, was more pointed: "We can say no more to the 'Not good enough for us, but good enough for them' approach that the current donation system encourages."
But the implications extend beyond the Global South. The UK's National Health Service has committed to reducing its carbon footprint by 80 percent by 2032 and reaching net zero by 2040. Those targets are legally binding. The current system—where perfectly serviceable prosthetics are discarded because of warranty restrictions and local practices—is wasteful and at odds with those goals. If the NHS could safely reuse components, it would cut unnecessary production, reduce waste, and move closer to its decarbonization targets.
The research team envisions a future where second-hand prosthetic components undergo MOT-like tests—the kind of rigorous inspection that vehicles receive—before being cleared for reuse. This would create what they call a circular economy for prosthetics: components would flow from one patient to another, within countries and across borders, with safety and quality guaranteed at every step. It is a vision of a system designed not for convenience, but for dignity and sustainability. The framework now exists. The question is whether the world will use it.
Citas Notables
We can say no more to the 'Not good enough for us, but good enough for them' approach that the current donation system encourages.— Dr. Michael Berthaume, King's College London
This lays the foundation for increasing the quality of donated prosthetic devices and ensuring people with limb differences in sub-Saharan Africa can access better quality care.— Tom Williams, CEO of STAND
La Conversación del Hearth Otra perspectiva de la historia
Why did it take so long for someone to establish standards for donated prosthetics?
Because the people receiving them had no power to demand it. Donations are framed as charity, as generosity. When you're on the receiving end of charity, you don't typically get to set conditions. The system worked fine for donors—they got rid of equipment they didn't need. It only failed the people wearing them.
So this is really about power imbalance.
Entirely. The phrase researchers kept finding was 'not good enough for us, but good enough for them.' That's not accidental language. It reflects a real belief that standards can be relaxed for poorer countries. This research says: no. A prosthetic foot either works or it doesn't. That's not negotiable.
But doesn't the NHS benefit from this too? How does that work?
Right now, if a prosthetic is fitted to one patient and doesn't work for them, the NHS can't give it to another patient, even if it's barely used. It gets thrown away. That's wasteful and expensive. If you could reuse components safely—with proper testing—you'd cut production, reduce waste, and hit your climate targets. Everyone wins.
Is this actually going to happen, or is it just a research paper?
That's the real question. The framework exists now. STAND and King's College have proven it works. But implementation requires buy-in from governments, health systems, and charities. It requires changing practices that have been in place for decades. The hard part isn't the science. It's the will to change.
What happens to the people in Uganda while we wait for that will to materialize?
They keep receiving whatever arrives in the donation shipments. Some of it is good now, some of it isn't. The 5 percent that's still unusable—those are real people who get a prosthetic that doesn't fit, doesn't work, and can't be easily replaced. The standards exist to prevent that. Whether they're enforced is a different question.