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.

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Falls a risk for over-65s

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Elderly couple out for a stroll – falls and the over-65s photo courtesy pixabay.com

You may know this statistic about falls among older people, but it is shocking all the same to learn that 74% of people who were hospitalised after a fall had broken their hips. Head injuries were the next most serious (22%) with limb fractures further down the list.

About a third of all Australians in the 65+ age group will have a fall each year, but most are not serious. About 10% of people in this cohort who suffer a fall end up with a serious injury.

An Australian Institute of Health and Welfare (AIHW) reports states that about 100,000 people aged 65 and over were admitted to hospital after falls in 2012-2013. While that is a few years ago, the statistics are part of a 10-year study done at the time, so are representative. Discuss, as people say when posting something contentious on social media.

The falls could be as relatively minor as the tumble I took down our steep terraced acreage recently, which resulted only in bad language and a few minor scrapes. I few years ago I had a rather more serious fall – a broken rib and a bruised thigh – what rugby league commentators scoffingly dismiss as a ‘cork’. I was carrying two folding chairs in each hand while walking down the stairs. Did I mention it was raining and the soles of my shoes were wet? Duh!

Which brings me to She Who Is Ambidextrous (SWIA), who has taken the lead (2-1) in the Domestic Falls Stakes. Excuse me for making light of a poor but not overly serious situation.

SWIA had what’s known in the medical business as a FOOSH (Fall on Outstretched Hand). She sustained the injury as a result of tripping down some stone steps in the front garden.

As a young friend who rather more seriously injured his arm last year said when hearing this news, “At least it wasn’t a PAFO.”  (let me know if you can’t figure it out..)

Yes, it seems we are now in that age group who are more prone to falls, and, having fallen, are more likely to suffer an injury with a longer and sometimes problematic recovery time. Moreover, the fallout from falls can have psychological ramifications, making people less sure of themselves and reluctant to do ‘normal’ things which might result in falls.

It can happen to anyone, anytime.

The AIHW statistics quoted above include the telling observation that 72% of falls occur in the home or residential aged care facilities.

Stay on your feet – join an exercise class

Several Australian states have started a “Stay on Your Feet” campaign, which makes sense when you consider that in Queensland alone, falls cost the state more than $100 million a year.

Most people aged 60 and older are quite aware of the risk involved in taking a tumble and many attend exercise classes designed to shore up core strength and improve balance. So in many ways SWIA’s fall last week is a bit ironic as she is dutiful about attending exercise classes and daily doing what I never do (a morning stretch routine).

One of my regular readers says the thing he likes about the weekly read is that it so often addresses issues affecting ‘our’ age group (he means the over-60s).

So this is for you, mate. Core strength is the overall fitness and flexibility of the core muscles that help us keep our balance, sit down, stand up, lie down, kneel and squat. If your core strength is suspect (like me, down on one knee to get a dish out of the bottom cupboard), you will be found out using your hand/s for support.

Try these tests (and absolve me of all responsibility if you fall in a heap).

Sit on a hard-backed chair for 10 minutes. Now get up without using your arms for leverage. Do the same thing from a sofa, recliner or armchair.

As Billy Connolly says: “Ye know how auld you are by how long it takes to get out of a beanbag.”

The other trick is to stand on one leg for as long as you are able to hold the position, say 30 seconds (no hand support). Now try the other leg. Notice the difference?

The real test is how successful you are at putting on your underpants while standing.

Some people make provisions as they age by retrofitting their homes in some way, for example putting grab bars in the bathroom and toilet. Some even have ramps built to avoid going up and down steps or stairs. People aged 70 and over who live alone are often encouraged to wear a device which they can use to call for help.

Scientists in Australia, the US, UK and Europe are working to develop devices which can prevent falls by predicting the likelihood of a person having a fall. The University of Missouri is collating data from sensors built in to the walls of homes were aged pensioners live. The university’s researchers found that even small changes can predict if an elderly person is about to suffer a dangerous fall.

The risk quadruples if walking speed slows; for example when walking speed decreases by 5.1cm per second, the person has an 86% chance of toppling within three weeks, compared to just a 20% chance with no change. A drop in stride length of 7.6cm predicted a 51% chance of tripping within three weeks. Scientists elsewhere have developed wearable devices which can measure a person’s gait and ability to perform tasks like sitting down and standing up again. These can also reliably predict the likelihood of a pending fall. Scientists are finding these various devices helpful in predicting falls among people who have an illness which affects gait (Parkinson’s Disease, MS, joint pain (arthritis), spinal cord compression injuries and peripheral neuropathy, often associated with diabetes.

If all else fails, there are a range of alert buttons one can wear and press if in need of help. The help buttons trigger a monitoring station which will investigate and, if necessary, dispatch an ambulance.

The main risk of hurting yourself is if you are elderly and live alone, especially in a big, impersonal city. Chances are you could lie on the floor a long time before anyone discovered what had happened to you. I was reminded about this scenario when watching a new TV reality show, Ambulance, which is an inside look at London’s ambulance service. In the first episode, a man in his 90s has fallen to the floor and can’t get up. It’s been three hours and ambulances keep getting diverted to more urgent situations. To add to his woes, an ambulance is about to pull up at his front door when they get sent to help a woman who says she is having a miscarriage. Turns out to be a serial hoaxer

Good thing we live in a small community, where the first responders attending SWIA were prompt, thorough and cheerful. Medical staff at Maleny Soldiers Memorial Hospital were also very thorough, leaving nothing to chance.

Now you’ll have to excuse me, SWIA needs me to tie her shoelaces, take the lid off the pickle jar, and adjust the recliner… (and explain that the title of this article does not, of course, refer to said SWIA. Ed)

Today marks FOMM’s fourth anniversary. Congratulate me, make suggestions, or send gratuities!

Related reading, FOMM back pages