Author Archives: Dr Benjamin Hewitt

orthopaedic surgery

Shoulder Injuries – Swimming is painful

The Rottnest Channel Swim is over and the conditions this year were pretty tough. My practice always seems to be inundated at this time of year with swimmers who have sore shoulders. I see many types of shoulder injuries. If your shoulder hurts when you swim hopefully this article will provide some direction as to what to do next.

If you swim enough, at some stage you will get a sore shoulder. Usually the pain is due to bursitis or impingement in the subacromial space. That is when your shoulder tendons rub on the bone above.

shoulder injuries

Below are some of the common causes of painful shoulders that I regularly see:

Overtraining / Overloading: To swim to Rottnest you need to complete a 10km qualifying swim. Very few people swim 10km in a single training session, so don’t be surprised if you arms and shoulders ache after your first 10km. As you load up your training the muscles around your shoulder get fatigued and you lose shoulder balance. This sets up a vicious cycle of pain, muscle dysfunction and more tendon rubbing leading to more pain.

All swimmers need rest days and a coach that understands when to push and when to back off.

Poor technique: Perth is blessed with many great swimming coaches. Most coaches target body position, flat hand entry and high elbows. There is no doubt good technique places less stress on your shoulders. Video analysis is great fun and a powerful tool to correct your technique.

Getting old: Everyone likes to think they are as strong and flexible as when they 20. You are not. Shoulders develop spurs and tendons get old. Often this leads to more pain and shoulder injuries.


A lot of shoulders settle down with rest, training modification andanti-inflammatories, so when should you come and see me?

If you have any of the following its worth making an appointment:

Soreness that hasn’t settled in 2 weeks.

Pain that wakes you at night

Discomfort that stops you from swimming even a couple of laps.

A shoulder that is getting stiffer or weaker

Or you are just worried that your shoulder is failing you.


Contact us today to book your appointment or call (08) 9322 1990.

knee replacement surgery

Knee Replacement Surgery

Knee replacementsurgery isnow a very common and successful orthopaedic operation, with the number of knee replacements performed each year increasing. In 2016, there were almost 60 thousand knee replacements performed in Australia.

Knee replacements are performed when a knee joint has become so arthritic or damaged that it can no longer function without causing severe pain and discomfort.

Other modalities / therapeutic methods that may play a role prior to replacement include:

  • Exercise, weight loss or physiotherapy
  • Medications such as anti-Inflammatories (e.g. Voltarin, Mobic, Naprosyn)
  • Injections: Steroids or Synvisc
  • Arthroscopy

A knee replacement is the last resort when the above treatment options have failed.

What is a Total Knee Replacement?

Technically, a knee replacement should really be called a “knee resurfacing”, as the knee isn’t replaced in its entirety. The only part Dr Benjamin Hewitt replaces is the worn-out surface cartilage.

During knee replacement, these parts are removed and a new bearing surface, made of metal or plastic, is cemented in position. The aim of this is a pain free and mobile joint post-recovery.

A knee replacement should really be called a knee resurfacing as not all the knee is replaced. The only part that I replace is the worn-out surface cartilage. During a knee replacement, these parts are removed and a new bearing surface made of metal and plastic is cemented in position. The aim is a pain free and mobile joint.

knee replacement

Do I Need My Whole Joint Replaced?

In most patients, only half of their knee is worn out, usually the inner side of the knee, and therefore only half of this needs to be replaced.

This is great option for surgery, as a half knee replacement is a much smaller operation. This means a quicker recovery period, and often the knee feels better than after a whole knee replacement.

total knee replacement

What is Involved in Getting a Knee Replacement?

Timing: Once you’ve decided on knee replacement, all you need to do is pick a suitable time and Dr Benjamin Hewitt will do the rest.

Location: The best results post-knee replacement come from high volume surgeons working at high volume facilities. Dr Benjamin Hewitt performs his knee replacements at Hollywood Hospital. He firmly believes this is the best joint replacement hospital in Australia. Excellent nursing staff and state of the art theatresmakeit the ideal environment for your surgery and post-operative care.

Day of surgery: On the day of your surgery, we ask you arrive at Hollywood Hospital early in the morning. The specialist nursing staff will check you in and prepare you for your operation. The operation is performed under general anaesthetic and takes 1 to 2 hours to perform.

After your operation: Our aim is to make you as comfortable and pain free as possible. The day after your operation, our physiotherapists will commence your custom rehab programme and get you up and walking.

Length of hospital stay: As a rule of thumb, after 3-4 nights you’re normally safe to walk around unassisted. Once comfortable and safe, you’re ready for discharge.

My Neighbour Had a Knee Replacement That Didn’t Work

We are constantly hearing this, and believe it or not, there are people who’ve had knee replacements and aren’t happy. Most people who’ve undergone knee replacement are improved, finding they can walk further, their leg is straighter, and they have little or no pain.

Occasionally, some patients do suffer complications that can affect their recovery. Having said that, we firmly believe most patients who end up unhappy have had unrealistic or incorrect expectations.

Knee replacement is considered the last resort of treatment. It is for people crippled or severely disabled by pain or deformity. So, before you consider the surgery, ask yourself a few questions:

  • Can you only walk 200m before stopping due to pain?
  • Do you take a lot of tablets every day for your pain?
  • Do you have trouble sleeping due to pain?

If the answers are no, then perhaps we need to consider alternative options.

Total knee replacement is now a routine, major operation. It is a good option as a last resort for the severely arthritic knee. Contact us today for a consultation with Dr Benjamin Hewitt to discuss your options, or schedule your surgery.

knee replacement surgery

Expectations After Knee Replacement Surgery

Knee replacement surgery is one of the most commonly performed orthopaedic operations in Australia with a very high success rate.

I perform about 100 knee replacements every year.

This article is designed to provide an insight into what you can expect following a knee replacement. And it will also bedetailing what you can do to maximise your recovery.

Before your knee replacement surgery

Once you have decided that a knee replacement is your best treatment option my team will help you pick a date for surgery.

Pre-hab is worthwhile. We encourage all our patients to try to stay as fit and healthy as possible. Good muscle strength before your operation often equates to a fast rehab.

So in the week before your knee replacement surgery Hollywood Hospital will contact you for an pre-admission assessment. This is an opportunity for our team to ensure there are no medical problems that may compromise your recovery. Andalso for you to ask any questions.

You will be admitted on the day of surgery , usually at 0630 am.

Early recovery / Hospital stay

After the operation you will be transferred back to the ward. The nursing staff will keep a close watch over you. Theyensure that you are comfortable and able to sleep off the anaesthetic peacefully.

Day 1 after the operation is a big day. Your leg will be x-rayed and a blood test performed.

The physiotherapists will stand you out of bed and ,if you feel up to it , you can start do some gentle walking. Most of your drips and catheters will come out today so you can have a shower.

With each day your knee should become more comfortable. And you will begin to walk greater distances. Normally after 2 days you are taking just a few tablets for pain.

The physiotherapy team will assist you walking. A physiotherapist will help with some simple leg exercises after knee replacement surgery.

During the first couple of weeks following knee replacement surgery it is vital that you do not overwork the knee. I advise to do only what you are comfortable with. Definitely do not push through any discomfort.

We let you go home when you are safe, comfortable and confident of being able to look after yourself. On average my patients spend 4 nights in hospital.

After leaving Hospital

When you leave hospital you will have enough medications to control any discomfort till your next appointment. This is usually within 1 week of your discharge.

There is no urgency with regards to exercising the knee. It is important to let the swelling subside before beginning strengthening exercises.

Most patients make steady gradual improvements in all aspects of their knee function in the months following kneereplacement surgery.

By 2 weeks most patients are only taking occasional pain relief. By 5 weeks not using any walking aids such as a crutch or stick. The majority of patients are driving by 4-6 weeks.

It is important to remember that my job is not just performing your knee replacement surgery. Ialso coordinate and advise you on your ongoing rehabilitation.

As always, my goal is for you to achieve the best possible outcome in symptom relief. And finallyimprovement of function in the shortest time possible. Contact me for an appointment.

orthopaedic surgery

Obtaining Quality of Life – No More Friction

Constant pain. Joint swelling. Stiffness. Fatigue.

6.1 million Australians, or 28% of our entire population, are currently living with the symptoms of arthritis and other related orthopaedic conditions. This effect their quality of life.

Symptoms such as pain, swelling and stiffness are very common and often debilitating.

The inability to walk, move or sleep without pain can impact almost every aspect of life.

For some people it may be the inability to play sport others may be unable to work or care for their family.

To stay fit and healthy we need to be able to move and exercise, loss of freedom of movement leads to a demise in general health and overall well being.

Arthritis Australia found that people with arthritis recorded significantly lower wellbeing scores compared to the general Australian population (mean score of 64.0 compared to 77.6). This research demonstrates the detrimental impact that arthritis has on the quality of life of Australians.

Arthritis becomes more common the older you get, at 75 yrs of age you have a 50% chance of suffering from the symptoms of arthritis. Because of this fact it is a common misconception that arthritis is a natural part of the ageing process.

However, this is not the case. While arthritis researchers still debate the underlying causes of osteoarthritis, what they all agree on, is that arthritis is not a natural part of ageing.

If arthritis isn’t a natural part of ageing then it shouldn’t be simply accepted with all the pain and disability that accompanies it.

But what can you do to reduce arthritic symptoms or minimise the impact of this disease on everyday life? How can you take action?

Dr. Benjamin Hewitt is an Orthopaedic Surgeon in Perth who specialises in treating arthritis of the knee, hip and shoulder. He uses state of the art treatments to return his patients to the best function their body can provide.

Dr Benjamin Hewitt works in concert with a variety of medical and non medical specialists to formulate an individual treatment programme that aims to alleviate the symptoms of arthritis and improve your quality of life .

Often if caught early symptoms may be alleviated with a structured exercise programme, cartilage preserving agents or inflammation reducing injections.

In some cases surgery may be the answer. This may be key hole arthroscopy to reconstruct or clean up an arthritic joint. In other situations major joint replacement surgery may be an option to create a whole new customised pain free joint.

People are now living and better, why suffer the pain of arthritis and orthopaedic conditions any longer?

hip replacement

Hip Replacement Surgery – The FAQs

Hip replacement surgery is one of the most common and successful orthopedic operations performed worldwide. It is usually performed when the hip joint wears out, resulting in pain and dysfunction. Such deterioration in your joint can dramatically affect and reduce your quality of life.

Last year in Australia there were over 34 thousand hip replacements performed, with this number steadily increasing every year. The following section hopefully answers some of the commonly asked questions about hip replacement and hip revision surgery.

Why would I need a hip replacement?

The hip joint is one of the most important joints in your body. We rely on it to stand, walk, and do all our usual daily activities. It consists of a ball and socket joint with a smooth hard bearing cartilage. This cartilage is the key to the joint functioning well, if it becomes damaged the joint will become painful and stiff. The most common cause of damage to hip joint cartilage is osteoarthritis, but the cartilage can also be damaged by infection or trauma. If the cartilage is damaged the joint usually becomes painful and progressively more stiff. In some patients, this can be very severe.

Normally, the hip is replaced when you are getting severe pain on a daily basis and it is stopping you doing the activities you want or need to do. For some people this might be the inability to sleep without pain, others might no longer be able to walk the dog or play golf. The aim of any hip replacement is to remove your pain and stiffness and get you back to the activities you enjoy.

Are there any alternatives to hip replacements?

Absolutely! A hip replacement is the last resort.

For some patients, painkillers, injections, and exercises can provide temporary relief. If the hip joint is worn out and the symptoms become debilitating, then the only long term solution is a hip replacement.

How long will my hip replacement last?

As is the case with all mechanical devices, hip replacements can fail – this usually occurs when the bearing surface wears out and the components become loose.

The details of all hip replacements performed in Australia are recorded and analysed by the Australian National Joint Replacement Registry. This means that Dr. Hewitt (and thus you) have access to exactly how long most joint replacements last.

On average, at the 10-year mark, 94% of joint replacements are functioning well, and come 15-years this has dropped to 90%. That means, should you have undergone a hip replacement, you have a 90% chance of it still fully functioning 15 years after your original operation. Try getting that from the next motor vehicle you buy!

What is the difference between hip replacement and hip revision?

If a hip replacement fails or comes loose, a new hip replacement needs to be inserted. The operation to remove the old joint (also called the primary joint) and insert a new joint is called a revision hip replacement. This is usually a bigger procedure than the first operation and requires very careful planning.

What are the different types of artificial hips? What type will I get?

Most hip replacements are very similar and consist of a cup, bearing surface (that sits within the cup) and a stem.

The stem and cup are metal and Dr. Hewitt uses an uncemented system. This means the components are pressed into the bone, which then (in time) grow onto them, hopefully holding them in place forever.

The ideal bearing surface is hotly debated amongst hip surgeons. Metal on highly cross linked plastic performs the best on the Australian Joint Registry, which is why Dr. Hewitt uses this in most of his patients.

How do I prepare for a hip operation?

Once you and Dr. Hewitt have decided that hip replacement is your best option the rest is easy. His experienced staff will assist you in selecting a surgery date and booking in to the hospital.

Dr. Hewitt performs his hip replacements exclusively at Hollywood Private Hospital. In most situations, Hollywood Private Hospital will contact you prior to your operation for a pre-admission assessment. This may involve a short appointment at Hollywood where the nursing staff will answer any queries you may have and ensure you’re fit and ready to proceed.

How long will I need to be in hospital?

Most patients will stay in hospital for 4-5 nights. This time is spent optimising your recovery and beginning your rehabilitation. Dr. Hewitt and yourself will decide when you are safe and comfortable to go home.

If you have any further questions, or believe you require hip replacement surgery, please contact Dr. Benjamin Hewitt’s office to arrange a consultation.

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