In modern medicine, the zeitgeist today seems to be captured in one word: “more.” We need more MRI machines, more screenings, more surgical interventions, more drugs, more doctors. More. More. More. Like the internal logic of capitalism that is built on eternal growth, so too is our health care system. 

Given this ever-expanding demand, we need to be asking some hard questions about whether sending even more of our collective wealth towards our healthcare system is producing good returns. We might expect that anything spent on healthcare provides good returns, but what if, frequently, those investments end in losses? 

There have been some significant strides against diseases over the last 30 years, but for many of the common sicknesses we all face, we’re seeing very little progress. This, despite the climbing price tag. Americans spent about $3.2 trillion in 2015 on healthcare, and that ballooned to about $4.8 trillion in 2023, representing a roughly 50% growth. By contrast GDP grew by only 25% over that period of time. 

What’s all the additional money buying us? 

In the things that matter, such as life expectancies, we are going backwards. The average life expectancy of Americans has dropped 2-3 years since the pandemic and we currently have among the lowest life expectancy among the world’s developed countries. The mental health of children and many adults is cratering, despite the mountains of expensive drugs we throw at these problems. Any advances on reducing mortality due to cardiovascular disease or cancer–the two biggest killers of Americans– are mostly disappointing, small, and incremental. And above all, in some key areas of healthcare, the more money we spend the worse outcomes we seem to get, a practice that culturally and financially threatens to bankrupt us. 

Despite the juggernaut of more, more, more, there has been a small but growing voice of those who say it’s time to apply the brakes, and fast. Regardless of what area you look at: hospitals, medical screening, drug treatments, orthopaedic surgeries, cancer treatments, you name it, a case can be made almost everywhere that we need to slow healthcare activity, especially in areas where it’s clear that it’s delivering us negative returns. 

I would argue that we are increasingly allowing the normal ups and downs of aging to be medicalized, where typical signs of lives well-lived are redefined as sickness and in need of medical intervention. An aging population, therefore, becomes an increasingly lucrative market to go after. 

Medicalizing Normal: The “Grey Hair” of Joints

Let’s take one example, orthopaedic surgery—to examine what I mean by the medicalization of normality. Orthopaedic surgeons typically operate on hips, knees, elbows, shoulders, spines, and hands, often providing an important and essential service. 

No one would argue against the value of hip replacement surgery in those suffering intolerable pain from worn out hip joints. But not all surgery or medical imaging relating to our joints is necessary. And some of it is harmful. Looking closely at the evidence behind MRI or CT scans, X-rays, and knee, shoulder, or elbow surgeries, you will find that many of the scans or surgeries we submit to do almost nothing to improve the length and quality of our lives. 

The use of MRI machines provides a stellar example. Everyone seems to believe that there are not enough MRI machines to go around even though the overall volume of MRI machines has grown immensely. Over the last decade, the number of MRI machines has grown by 35% in some states, and total MRI-related revenue has increased by up to 40%. 

MRIs are clearly a big moneymaker for hospitals but what do those machines really do? Spoiler alert: they often do little more than detect the natural physiological signs of aging. 

Earlier this year the Finnish Centre for Evidence-Based Orthopaedics (FICEBO), did something so amazing, it’s hard to believe that no one else had thought of this. They took about 600 healthy middle-aged Finns and conducted MRIs of their shoulders. These were people who had no pain or no symptoms. They were just like you and I, everyday people. 

The result? Ninety-nine percent of these healthy adults aged 41 to 76 had at least one rotator cuff abnormality on an MRI. No symptoms. No pain. No disfigurement. But a high-tech machine telling them they were diseased. This eye-opening study was published in February in JAMA Internal Medicine. It should have shaken the medical world but it barely made a ripple.

Let’s think through the implications of this. What should we make of the fact that “abnormalities” in our shoulders are found by MRIs in almost all of us who have no symptoms at all? There was no difference in the prevalence of full-thickness tears between symptomatic and asymptomatic patients. Despite the zillions of expensive MRI scans Americans have every year, this study’s findings suggest that in the case of rotator cuff changes after midlife, they are as normal as grey hair and wrinkles in older people. When we use these incidental findings to justify surgery, we aren’t curing a disease; we are performing expensive, invasive procedures on the natural process of growing older. 

Now extrapolate that to knees. Same thing: many people with “normal” knees will have a “meniscal tear” found on an MRI machine. 

Making the case for “De-implementation:” Why Some Surgeries Must Stop

In the world of prescribing, there is a lot of interest lately in “deprescribing,” which is about actively cutting, reducing, and sometimes eliminating prescriptions in order to improve the care of patients. In the world of medical procedures that is a strong case to be made for “de-implementation,” which is about rethinking the value of the procedures and rewriting the rules on when those procedures should be done. This is not just about avoiding unnecessary scans; it is about avoiding common surgeries that high-quality science has proven to be ineffective. Two major trials, again produced by Finnish researchers, have shattered deeply held medical beliefs regarding shoulder and knee pain.

Arthroscopic subacromial decompression (ASD)— the act of removing a section of bone in one’s shoulder is done to theoretically “increase space” for tendons for those who are suffering what is colloquially known as “shoulder impingement.” 

It is one of the most commonly-performed orthopaedic procedures globally. However, high-quality research like this trial found that the ASD procedure offered no relevant benefit compared to a placebo surgery (where they go in to inspect the joint but no bone was removed). Even after a 10-year followup, the results remained unchanged. The British Medical Journal made a “strong recommendation” against performing this surgery, seeing as it is no more effective than doing nothing. Despite this evidence, worldwide ASD surgeries are widely done, and done frequently.

But that’s not the worst example. 

The Poster Child for unnecessary surgeries is APM or arthroscopic partial meniscectomy (APM) for degenerative knee tears. This long-used “meniscal resection” surgery for torn menisci in the knee has been studied for many years. The best and longest trial was likely the Fidelity Trial (published last month in the New England Journal of Medicine) which involved following patients for ten years, a span of time almost unheard of in the world of orthopaedic surgery. The results are definitive: APM provides minimal to no improvement in symptoms compared to placebo surgery. Beyond its clinical futility, economic evaluations conclude that APM for degenerative tears is not cost-effective. Why? Long term, patients are generally worse off, because those surgeries are more likely to actually accelerate the development of knee osteoarthritis.