Hip Disorders: Osteoarthritis & Bursitis

Hip Disorders: Osteoarthritis & Bursitis

Hip Disorders: Osteoarthritis & Bursitis

Our hip joints allow us to do an amazing number of things – walk on two legs, pivot, squat, even kick a ball. It is an engineering marvel to combine the stability required to balance the weight of the torso over a structure the size of a golf ball, with the substantial degree of mobility available. The high demands on the hip joints can, however, take their toll over a lifetime.

Osteoarthritis is the most common hip disorder affecting adults. Primary osteoarthritis (OA) has no recognizable cause, while secondary OA is thought to occur due to altered joint mechanics or following joint trauma. Obesity, excessive loading due to occupational or sport demands can contribute to breakdown of articular cartilage. There is likely a genetic component as well. Muscle imbalances around the hip are also predisposing factors, as shearing forces or high compression load will cause abnormal wear and tear. Alignment issues of the low back, pelvis and leg can also contribute to abnormal forces around the joint.

Muscle imbalances occur as a result of weak, tight, or inappropriately recruited muscles. Our neuro-muscular system can develop certain abnormal pathways of firing, creating suboptimal movement, and potential damage to joint structures. If these are retrained before the cartilage damage is severe, it can halt the progression and reduce the symptoms of arthritis.

One of the most important groups of muscles for maintaining optimal compression and centering the ball, (or head) of the femur in its socket are the Gluteal muscles on the lateral side of the hip. Core strength and balance are also very important components of optimal hip health.

A second common diagnosis of hip pain is trochanteric bursitis. The most prominent lateral point on the hip bone is called the greater trochanter. It was commonly thought that the bursa overlying this point was the most common local cause of lateral hip pain. However, in a recent study, using real-time ultrasound, 80% of patients with lateral hip pain did NOT have bursitis. 50% of the 877 patients studied had tendinosus of their gluteal muscles, ie. a degeneration of the deep hip rotators tendon’s collagen in response to overuse, occuring when other stabilizer muscles weaken. It is part of what has been labeled Greater Trochanteric Pain Syndrome (GTPS).

Symptoms of both OA and GTPS can be similar. Pain from OA is usually felt in one or more of the following areas: the groin (most common), over the greater trochanter, or down the front of the thigh and knee. Usually, arthritis pain is reported with or after activity, progressing to pain at night or at rest.

With GTPS, point tenderness is noted at or behind the greater trochanter, typically worse at night, especially when lying on the affected side. Lateral hip pain with repeated stair climbing and squatting is more likely due to GTPS.

Maintaining adequate strength and flexibility of the hip muscles is an important component of treatment and prevention of both hip osteoarthritis and trochanteric pain syndrome. Physiotherapists are trained to assess these disorders. They can prescribe individual exercise where deficits in strength, mobility and balance are noted.

Sun City Physiotherapy Locations

Downtown

1468 St. Paul Street, Kelowna, BC
Phone: 250-861-8056
downtown@suncityphysiotherapy.com
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Glenmore

103-437 Glenmore Road, Kelowna, BC
Phone: 250-762-6313
glenmore@suncityphysiotherapy.com
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Lake Country

40-9522 Main St., Lake Country, BC
Phone: 250-766-2544
winfield@suncityphysiotherapy.com
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Lower Mission

3970 Lakeshore Road, Kelowna, BC
Phone: 778-699-2006
lowermission@suncityphysiotherapy.com
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Hip Strengthening

Your Hips: The ‘Core’ of the Problem?

I think most of us by now have heard about the importance of strengthening your ‘core’. But did you know that the most important part of your core for preventing hip, knee, and ankle injuries are your hip muscles? Your hip muscles or ‘glutes’ are the largest group of muscles in your lower body and are a part of your core that are often much weaker than they should be.

So what exactly are the hip muscles responsible for? Strong hip muscles keep your spine, pelvis, knees and ankles in alignment. If your glute muscles aren’t strong enough your hips rotate and drop, your knees move inward and your feet flatten (pronation). All of these motions create more strain on the joints, ligaments and tendons of your lower body. This excessive strain often leads to injury and persistent pain. Achilles tendinosis, patellofemoral knee pain, iliotibial band (ITB) syndrome, and piriformis syndrome are all common injuries linked to weak hip muscles. Research is also showing that hip weakness is a major risk factor for non-contact ACL (knee ligament) injuries.

So why do our hip muscles become weak in the first place and what can we do about it? The latest research done by Dr. Powers who is a physiotherapist in Los Angeles, shows that our brains have only a very small area dedicated to controlling the hip muscles. It is unclear why this is the case but it may explain why the majority of us don’t naturally use our hip muscles during activities such as: running, walking and hiking. The good news is that the same research shows that exercise can change the way our brains work.

In the study, patients that took part in specific hip strengthening exercises, actually showed changes in brain function. The areas on the brain controlling the hip muscles became larger after only a week of exercise! This is important because the larger the area of your brain dedicated to a certain muscle group is, the easier it is to ‘turn on’ and strengthen that muscle. Keep in mind though, these strengthening exercises need to be done for a minimum of 3 months in order to get significant strength improvements in the muscle.

So if you suffer from ongoing hip, knee or ankle pain, strengthening your hips may be the key to getting over your injury problems. Visit your local physiotherapist and ask for an assessment on your hip strength. If your muscles are weak your physiotherapist will give you the proper home strengthening exercises to address the weakness. Through these exercises you can change your brain to help change your pain.