What Is Hip Dysplasia In Adults Symptoms Treatment?

Hip dysplasia in adults is a condition where the hip socket is too shallow to fully cover the ball of the thigh bone. This instability can cause pain, a catching sensation, and eventually lead to early arthritis. Treatment ranges from physical therapy to surgical repositioning of the joint, depending on severity and the patient’s age.

What Is Hip Dysplasia In Adults Symptoms Treatment?

Hip dysplasia is not just a childhood condition. Many adults live with a shallow hip socket for years without knowing it. The problem often surfaces during the 30s or 40s, sometimes after a specific activity triggers the first real pain.

In a normal hip, the ball at the top of the thigh bone sits snugly inside a deep socket. In dysplasia, that socket is too shallow. The ball shifts around inside the joint, putting uneven pressure on the cartilage. Over time, this repeated stress damages the joint surface and can lead to osteoarthritis.

Treatment depends on how much damage is already present. For younger adults with minimal arthritis, surgery to reposition the socket can preserve the joint. For older adults or those with significant arthritis, a hip replacement is often the more realistic option.

What Does Hip Dysplasia Pain Feel Like?

The pain from adult hip dysplasia is typically felt in the groin, though some people feel it in the side of the hip or the buttock. The pain is often described as a deep ache rather than a sharp pain. It tends to worsen with activity and improves with rest.

Many people report a catching, clicking, or popping sensation in the joint. This happens because the ball of the hip is moving more than it should inside the shallow socket. Some patients describe the hip feeling like it is “giving way” or unstable, especially when walking on uneven ground.

Sitting for long periods can also trigger discomfort. The hip is flexed in this position, which puts the shallow socket under increased strain. Getting up from a low chair or car seat may be noticeably difficult.

Who Gets Hip Dysplasia As An Adult?

Hip dysplasia is most often a developmental condition. Some people are born with a mild form that never fully corrects itself. Others had the condition diagnosed in infancy but received treatment that was only partially effective.

Women are affected more often than men. The exact reason is not fully understood, but hormonal differences during development and childbirth may play a role. A family history of hip problems also increases the risk.

Certain activities can make symptoms appear earlier. Sports that involve deep hip flexion, like gymnastics, martial arts, or hockey, place extra demands on an already unstable joint. This does not mean the activity caused the dysplasia — it simply brought the underlying problem to the surface.

How Is Hip Dysplasia Diagnosed In Adults?

A standard X-ray is usually the first step in diagnosis. The image allows a doctor to measure the angle of the socket and see how much coverage the ball of the hip receives. This measurement is called the center-edge angle, and values below a certain threshold indicate dysplasia.

An MRI is often ordered next. This scan shows the cartilage and soft tissues in detail. It can reveal early cartilage damage that does not appear on a regular X-ray. An MRI can also detect a labral tear, which is a common injury in dysplastic hips. The labrum is a ring of cartilage that deepens the socket, and it often tears when the joint is unstable.

Some doctors also use a CT scan to get a three-dimensional view of the joint. This is especially useful when planning surgery, as it helps the surgeon understand the exact shape of the socket.

Can Hip Dysplasia Be Treated Without Surgery?

Non-surgical treatment is the first line of approach for many adults. Physical therapy focuses on strengthening the muscles around the hip, particularly the gluteal muscles. Stronger muscles can help stabilize the joint and reduce symptoms, though they cannot change the shape of the socket.

Activity modification is another key part of non-surgical care. Reducing high-impact activities and avoiding deep hip flexion can ease pain. Low-impact exercises like swimming or cycling on a properly adjusted bike are often better tolerated.

Anti-inflammatory medications can help manage pain during flare-ups. Some patients find relief from corticosteroid injections into the joint, though the effects are temporary. These injections can also serve a diagnostic purpose — if a patient gets significant pain relief from an injection, it confirms the hip joint is the source of the problem.

It is important to understand that non-surgical treatment does not fix the structural problem. It manages symptoms. For younger patients with a shallow socket but healthy cartilage, delaying surgery while relying only on therapy may allow further joint damage to occur.

What Surgery Is Available For Adult Hip Dysplasia?

The main surgical option for adults without significant arthritis is a periacetabular osteotomy, commonly called a PAO. During this procedure, the surgeon cuts the bone around the socket and repositions it to better cover the ball of the hip. The bone is held in place with screws while it heals.

A PAO is a major surgery. Recovery typically involves several months on crutches and many more months of physical therapy. The goal is to prevent or delay arthritis by restoring normal joint mechanics. Good candidates are usually under age 40 with minimal cartilage damage and no significant arthritis.

For adults with already advanced arthritis, a PAO is not appropriate. The damaged cartilage cannot be restored by repositioning the bone. In these cases, a total hip replacement is the standard treatment. Hip replacement removes the damaged joint surfaces and replaces them with artificial components.

Hip replacement reliably relieves pain and restores function. Modern implants typically last 20 years or more. Many surgeons advise patients to delay this surgery as long as reasonable, especially for younger patients, because a future revision surgery may eventually be needed.

What Happens If Hip Dysplasia Is Left Untreated?

The natural course of untreated hip dysplasia is gradual joint degeneration. The unstable joint wears down the cartilage unevenly, and this process typically accelerates over time. Many patients develop noticeable arthritis within 10 to 20 years of their first symptoms.

The rate of progression varies significantly between individuals. Some people have mild dysplasia and remain relatively symptom-free for decades. Others develop painful arthritis in their 30s. There is no reliable way to predict exactly how fast the condition will progress for any given person.

What is clear is that untreated dysplasia places the joint at much higher risk of early arthritis compared to a normal hip. Once significant cartilage loss occurs, the treatment options narrow considerably. This is why early evaluation matters for anyone with persistent hip or groin pain.

How Does Adult Hip Dysplasia Differ From Infant Hip Dysplasia?

Infant hip dysplasia is often detected during routine newborn checks. The hip joint in a baby is still forming, and treatment with a harness or brace can usually guide the socket to develop properly. The earlier treatment begins, the better the outcome.

Adult hip dysplasia represents a different situation. The bones are fully formed, so bracing cannot change the shape of the socket. The only structural correction available is surgery. The goals also differ — in infants the aim is normal development, while in adults the aim is preserving the joint and delaying arthritis.

Some adults with hip dysplasia were treated as infants but have residual shallowness. Others were never diagnosed. The condition can also develop during adolescence if the socket does not deepen properly during the growth spurt, and this may not become symptomatic until adulthood.

What Questions Should You Ask A Specialist?

If you are diagnosed with hip dysplasia, asking the right questions helps you understand your options. Start by asking how much cartilage damage is present and whether you are a candidate for joint preservation surgery. The answer depends heavily on your age and the condition of your cartilage.

Ask about the surgeon’s experience with the specific procedure being recommended. A PAO is a technically demanding operation, and outcomes are better at high-volume centers. Ask about expected recovery time, activity limitations, and what the long-term outlook looks like.

Also ask about the risks. Every surgery carries risks of infection, blood clots, and nerve injury. A PAO specifically carries risks of delayed bone healing or non-union, where the bone fails to fuse properly. A hip replacement carries risks of dislocation, leg length inequality, and implant wear over time.

Finally, ask what happens if you choose not to have surgery. Your doctor should be able to explain what the likely course is over the next 5 to 10 years, even if that answer involves some uncertainty.