Arthritis and the global business of hip replacements

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Photo by www.pixabay.com

Who’d have known there were 2.150 million Australians who suffer from arthritis? It was one of the questions in the 2021 Census (asking about long-term health problems). I don’t recall answering the question, but don’t doubt that I ticked the top 3 boxes.

The three biggest long term health issues in Australia are: mental health, arthritis and asthma.

The 2021 Census was the first time the Australian Bureau of Statistics (ABS) asked about diagnosed long-term health conditions. Two million-plus people reported having at least one of the top three – mental health (2,231,543), arthritis (2,150,396) and asthma (2,068,020).

Of those who responded to the survey, 4.78 million reported having one of the 10 long-term health conditions; 1.49 million reported having two of the health conditions and 772,142 had three or more.

Let’s focus on health issue number two – arthritis. There’s a bit of it in my family and when the weather is cold or I have been playing guitar, typing or weeding, ‘Arthur’ reminds me he is king of my castle.

So far it is just swollen hand joints (thumb and pinkie) and occasional pain in the hip and femur. Despite having major surgery on both knees in 1969, I’ve ducked the serious inflammation that attacks hips and knees.

I once met the late jazz musician, Don Burroughs, who suffered with arthritis in later life. He told me he’d successfully taught himself different techniques for playing clarinet, flute and saxophone. Veteran guitarists will tell you similar stories of how to play, holding the instrument in different positions.

The Australian Institute of Health and Welfare shed some light on the subject in 2020 with a report that looked at an array of musculo-skeletal conditions that affect the bones, muscles and joints. These conditions include long-term (chronic) conditions such as osteoarthritis, rheumatoid arthritis, juvenile arthritis, back pain and problems, gout, and osteoporosis or osteopenia (low bone density).

The latter caught my attention as I recently checked in with the Bone Bus and had scans done of my hips, knees, spine and upper arms.

The Bone Bus is a travelling clinic with the sole purpose of measuring patients’ bone density. The scan is one of three procedures people over 70 can have that is wholly funded by Medicare. I had the pneumonia and shingles vaccines about 18 months ago. But ever since then, I was away travelling when the bone bus came to town.

According to John Hopkins Medicine, a bone density test is used mainly to diagnose osteopenia and osteoporosis. It is also used to determine your future fracture risk.

I have not seen a doctor about my scan yet (it can take a week to see a GP in this town – or any other for that matter), but I’m fairly relaxed about it. I’ve had a couple of tumbles in the garden and in the house in recent years and suffered only bruises of the flesh and ego.

Not so for some of my peers, who have either had a hip or knee replacement or fractured a hip after a fall.

Friends who broke a hip report a good rate of recovery. One friend was back driving six weeks later. Another was getting about town on a walking stick within a month.

The main issue when an older person falls and fractures a hip is the risk of death. The one-year mortality rate after hip fracture is 21%, once the fracture is surgically addressed. If not, the one-year mortality is about 70%.

This means 4 out of 5 older persons will survive the first year after a hip fracture. This mortality rate has remained unchanged since the 1980s.

The Conversation goes one step further, saying a hip fracture can often be a ‘death sentence’. The statistics around hip fractures in the elderly are alarming, notably that 27% of hip fractures occurred after a fall in an aged care facility.

Age is a key risk factor, with hip fractures more likely to occur in those aged 65 or older. They’re primarily a result of a fall, or when the hip collides with a solid object such as a kitchen bench. However, they can also occur when there has been little or no trauma.

Cognitive impairment such as dementia can increase the risk of falling. Frailty, poor vision, the use of a combination of medications, and trip hazards in the home also increase the likelihood of falls. Osteoporosis, a disease characterised by low bone mass and degradation of bone tissue, is another significant risk factor for hip fractures.

Data from the AIHW  collated in 2017 found that 93% of new hip fractures were the result of a fall-related injury, of which 87% were minimal trauma (low-impact) falls. Nearly half (48%) occurred in the person’s private home, and, as mentioned, 27% occurred in an aged care facility.

Falls and fractures aside, if your hips are problematic, replacement surgery with advanced robotics and titanium prosthetics is the preferred option to waiting for the inevitable fall.

The hip replacement procedure has improved greatly since it started to become commonplace in the early 1990s. This YouTube video explains by animation how a compromised hip joint is replaced.

Osteoarthritis is usually the condition that leads to requiring a hip replacement. People with bad hips do have options (first line of treatment is anti-inflammatory drugs). Eventually, though, GPs are more likely to suggest a hip replacement than not. The technology for the procedure has improved to the point where the successful, pain-free recovery rate is above 95% and 90%-95% at the 10-year mark.

Surgeons have been able to replace worn-out or diseased hip joints since the 1960s, but it wasn’t until the late 1980s that people began actively seeking it out as an option.

About 44,000 Australians sign up for a hip replacement every year with more than 90% reporting a good outcome.

An article attributed to Fortune Business Insights shows that hip replacement surgery is a $US6.57 billion global business. Despite a 12.1% decline in turnover through 2020 (as Covid postponed elective surgeries), the business of replacing hips is huge.

Globe Newswire reported that the global market size is projected to hit US9.91 billion by 2028. The forecast growth is due to the “growing prevalence of osteoarthritis in the geriatric community.

The market’s growth is also attributable to “favourable health reimbursement policies.

We are fortunate in Australia that such procedures are paid for by Medicare, albeit after a lengthy waiting period. A hip replacement can cost between $19,439 and $42,007 (median $26,350). You probably know people who have had both hips done. Three cheers for free medical care (introduced by Gough Whitlam in 1974 and further enhanced by Medicare in 1984).

Meanwhile I should, I know I should, go back to the aged person’s gym that focuses on stretching and flexing, working on the all-important core strength which helps us keep our balance.

As for knees, which are more problematic, I already wrote about that.

FOMM back pages

A Few Observations About Ice and Glaciers

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Fox Glacier image by Cath Singleton

One Thursday night while watching rugby league, I went to the freezer, extracted some ice cubes and wrapped them in a tea towel. The aim was to encase my throbbing thumb in an icy blanket of numbness.

It’s just arthritis, the doctor said, examining the swelling of the thumb joint. Gardening, playing guitar and driving tends to bring on the pain and swelling. Importantly, the doctor did not recommend ice, instead suggesting anti-inflammatories (tablets or gel).

For athletes the world over, ice has for decades been part of the treatment for swelling and pain brought on by sporting injuries. It was quite a revelation, then, to discover that ice no longer has the imprimatur it once had for treatment of bruises and sprains. It seems that doctors and physiotherapists now believe that moving the injured body part helps more with recovery than numbing it with ice.

To digress for a moment, a Deloitte survey of media and entertainment habits cited here a few weeks back found that 91% of survey participants multi-task while watching TV. I scoffed at the time, then started thinking about the things I was doing while ‘watching’ footie.

The ritual of icing my thumb expanded into googling (on my phone) all manner of references to ice (frozen water) as a future FOMM took shape. I may have toyed with my crossword book (seven down: a permanent mass of ice caught in a mountain pass).

I may also have left-handedly replied to two texts and three emails while watching the Brisbane Broncos make multiple mistakes, run sideways, miss tackles and wonder why they got beaten.

When it comes to ice and rugby league, you often footie players sitting forlornly on the bench with bags of ice strapped to their shoulders, knees, thighs or ankles. The most common rugby league injury is what is euphemistically known as a ‘cork’ which is what we kids used to call an ‘Uncle Charlie’, that is, when the schoolyard bully knees you in the thigh muscle. The result is extreme pain, as a deep-seated bruise takes shape within the traumatised tissue.

You will notice I have reclaimed the original definition of ice (the solid form of water). It takes this form when subjected to temperatures of zero and below. In contemporary culture, ice is most frequently used to serve chilled drinks and to create temporary fridges at large family gatherings.

The times when ice (frozen water) most often makes it into the news is when storms drop hailstones as big as golf balls, tennis balls, cricket balls or even bowling balls. It’s no fun being caught out in a hailstorm and can even be dangerous. There have been reports of people dying, going back to France in 1360, during the Hundred Years war, when 1,000 English soldiers were killed in a freak hailstorm. The deadliest of the last century was when 246 people died in Moradabad, India, in 1988.

Hailstorms bring out the worst in headline writers, as they struggle to find four or five letter words that create panic pictures (‘wreak havoc’ is a favourite) and so is ‘freak’, as in ‘a very unusual and unexpected event or situation’.

Hailstorms also play freakish havoc with the balance sheets of general insurers. The Insurance Council of Australia reveals its biggest payout in recent times was the $1.7 billion in losses a 1999 hailstorm caused to Sydney’s city’s east. Then there was the $31 million in losses caused by Sydney’s Anzac Day hailstorm of 2015. Not to mention the trauma and loss of production suffered by crop farmers and fruit-growers and the long queues of car owners waiting for their turn in the panel shop.

You may have already gathered I might steer this conversation from freak hailstorms to what climate change means for the world’s glaciers and arctic ice sheets.   

As Sarah Gibbons wrote in National Geographic this week: “Like an ice cube on a hot summer’s day, many of Earth’s glaciers are shrinking.”

The article is based on new data from researchers at the University of Zurich. They found that melting mountain glaciers contribute roughly a third of measured sea-level rise. This is about the same sea level rise as the Greenland ice sheet and more than the contribution of the Antarctic. Their research also highlighted that many of the world’s glaciers may disappear in the next century. Sea levels rose 27mm between 1961 and 2016, roughly half a millimetre a year. NASA now says sea levels are rising at the rate of 3mm a year, with melting glaciers contributing about a third of that volume.

Glacial movement is caused by variations in temperature with snow accumulating or melting, the evidence seen at the glacier terminus. The sheer weight of the glacier causes it to move slowly downhill, whether or not the glacier is advancing or retreating.

New Zealand’s Fox Glacier advanced between 1995 and 2009 at the rate of a metre per week. Since 2009, the glacier has begun retreating again, as it did in the decades prior to 1995.

Fox and neighbouring Franz Josef are not typical glaciers, though. They retreat or advance 10 times faster than glaciers located in other countries. This is partially to do with the excessive precipitation on New Zealand’s west coast, but also the extremely large neve* above the Fox and Franz Josef glaciers.

(*that’s glacier-speak for snow accumulated above a glacier).

The New Zealand situation seems anomalous, however, as US scientists found that 2017 was the 38th year in a row of mass loss of mountain glaciers worldwide. According to the State of the Climate in 2017, the cumulative mass balance loss from 1980 to 2016 was 19.9m, the equivalent of cutting a 22m-thick slice off the top of the average glacier.

My original premise of using ice to soothe pain arose again when friends came over to watch A Star is Born. You know that scene where Bradley Cooper’s character Jackson Maine drags Lady Gaga’s character Ally into a suburban all-night supermarket? This is not long after Ally has biffed an off-duty cop in the face and apparently damaged her hand.

“Better get something on that, before the swelling starts,” Maine says.

So he scurries around the supermarket, putting together a makeshift icepack to soothe Ally’s bruised knuckles. (I read this as a bit of rock star foreplay, giving Jackson an excuse to stroke Ally’s hand).

Gabe Mirkin, author of “The Sports Medicine Book,” where the RICE (rest-ice-compression-elevation), acronym first appeared in 1978, now says the rest and ice part of the cure is no longer recommended. He changed his mind after reviewing the latest research, which includes a study published in 2014 by the European Society of Sports Traumatology, Knee Surgery & Arthroscopy. The report found that icing injured tissue shuts off the blood supply that brings in healing cells. “Ice doesn’t increase healing — it delays it,” Mirkin says, and the studies back him up

It would seem the rugby league fraternity did not get this memo.

Perhaps they should take the tip from commentator Gus Gould, who, despite a seven-year footie career marred by injuries, appears to advocate stoicism.

“Aw that’s nothing,” says Gus. “It’s just a cork – he can run that off.”

#shutupgus