Hip Conditions › Hip Dysplasia

Hip Dysplasia: Symptoms, Causes & Treatment

The hip is one of the most important joints in your body. When it functions correctly, it allows you to walk, run, and move with ease. However, when the joint does not form properly, it can lead to discomfort, limited mobility, and joint wear over time. If you or your child has recently received a diagnosis, you likely have many questions.

Here is everything you need to know about the condition, from early warning signs to effective treatment plans.

What Is Hip Dysplasia?

The hip is a ball-and-socket joint. The rounded top of the thighbone (femur) rests inside a cup-like socket in the pelvis. In a healthy joint, the socket firmly holds the ball in place.

If you have hip dysplasia, the socket is too shallow to support the ball of the thighbone completely. This improper fit causes the joint to become loose or unstable. Over time, the extra stress on the joint can damage the surrounding cartilage and lead to early-onset osteoarthritis.

Developmental Dysplasia of the Hip (DDH)

Doctors often use the term developmental dysplasia of the hip (DDH) to describe this condition. This name reflects the fact that hip instability can develop as a child grows. While a baby might be born with normal hips, the joint can shift and become shallow during their first year of life.

DDH exists on a spectrum. Some mild cases simply involve slightly loose ligaments around the joint. In more severe cases, the thighbone can easily slip out of the socket or become completely dislocated.

Congenital Hip Dysplasia in Newborns

When the condition is present right at birth, it is often called congenital hip dysplasia. Doctors screen for this immediately after a baby is born and during routine pediatric check-ups.

The exact cause is not always clear, but several factors can increase the risk of infant hip dysplasia:

  • Family history: Genetics play a strong role.
  • Breech birth: Babies positioned bottom-first in the womb experience abnormal pressure on their hips.
  • Firstborn children: The uterus is tighter during a first pregnancy, leaving less room for the baby to move.
  • Gender: Girls are significantly more likely to develop the condition than boys.

Hip Dysplasia Symptoms in Infants and Adults

The way this condition presents depends entirely on the patient’s age. Babies rarely feel pain from hip instability, while adults often seek medical care specifically because of joint discomfort.

In Infants:

  • One leg may appear shorter than the other.
  • Reduced flexibility or mobility on one side, especially during diaper changes.
  • A noticeable clunking or popping sensation when moving the baby’s legs.

In Adults:

  • A deep, aching pain in the groin or side of the hip.
  • Pain that worsens during physical activity or after sitting for a long time.
  • A catching, snapping, or popping sensation inside the joint.
  • A subtle limp when walking.

Signs of Hip Dysplasia

Along with the internal symptoms, there are visible signs of hip dysplasia you can look out for. In babies, you might notice uneven skin folds or thigh creases. When you lay your baby on their back and gently straighten their legs, the creases on their thighs or buttocks may not line up evenly.

In older children and adults, the primary sign is a change in gait. A child learning to walk might limp, waddle, or consistently walk on their toes on one side to compensate for a shorter leg.

How Hip Dysplasia Is Diagnosed

Early detection makes a massive difference in how well the joint heals. Pediatricians perform gentle physical exams during early well-baby visits to check for joint stability. If the doctor suspects infant hip dysplasia, they will order imaging tests to get a clear view of the joint.

  • Ultrasound: This is the preferred tool for babies under six months old. It uses sound waves to create pictures of the hip joint, as infant bones are mostly cartilage and do not show up well on X-rays.
  • X-rays: For babies older than six months, older children, and adults, X-rays provide a clear image of bone structure and help doctors measure the depth of the hip socket.
  • MRI: In adults, an MRI might be used to check for damage to the cartilage or labrum (the ring of cartilage that lines the socket).

Treatment Options for Hip Dysplasia

Treatment aims to secure the thighbone in the socket so the joint can mold and grow properly. The best approach depends on the patient’s age and the severity of the dysplasia.

For Infants:

The most common and effective treatment for babies is a Pavlik harness. This soft brace gently holds the baby’s hips in a flexed, outward position. It keeps the joint aligned while the ligaments tighten and the socket forms properly. If the harness does not work, doctors may use a firm body cast called a spica cast.

For Older Children and Adults:

If the condition is discovered later in life, treatment becomes more complex. Mild cases might improve with physical therapy to strengthen the surrounding muscles, weight management, and anti-inflammatory medications. However, surgery is often necessary to prevent permanent joint damage. An orthopedic surgeon. can perform an osteotomy, which involves cutting and realigning the pelvic bone to create a deeper socket. For adults with severe cartilage wear and arthritis, a total hip replacement may be the best path to living pain-free.

When to See an Orthopedic Specialist

You should never ignore joint pain or mobility issues. If you notice asymmetrical leg creases in your baby, or if your toddler walks with a limp, contact your pediatrician for an evaluation.

If you are a young adult experiencing unexplained groin pain or a catching sensation in your hip, schedule an appointment with an orthopedic specialist. Catching and treating the issue early can help you preserve your natural hip joint and maintain an active, healthy life.

Get Expert Orthopaedic Care

Whether for your child or yourself, early diagnosis and the right treatment plan make all the difference. Schedule a consultation with our orthopedic specialists today to preserve your joint health and maintain an active, healthy life.

Orthopaedic Sports Medicine Team