Hip Replacement: When It Is Needed, How Surgery Works and What to Expect

What Is Hip Replacement Surgery?

Hip replacement is an operation in which damaged parts of the hip joint are removed and replaced with artificial components.

The hip is a ball-and-socket joint. The ball is located at the top of the thigh bone, while the socket is part of the pelvis.

When the cartilage covering these surfaces becomes severely damaged, movement can become painful and difficult.

Hip replacement aims to reduce pain, improve mobility and help patients return to everyday activities.

When Is a Hip Replacement Needed?

Hip replacement is usually considered when hip pain and stiffness significantly affect daily life and other treatments have not provided enough relief.

The most common reason is osteoarthritis.

Other conditions that may lead to hip replacement include:

• Rheumatoid arthritis
• Severe damage after a hip injury
• Certain hip fractures
• Loss of blood supply to the femoral head
• Other conditions that severely damage the hip joint

Patients are usually evaluated after treatments such as medication, physiotherapy, activity modification or injections have been considered.

What Are the Symptoms of Severe Hip Joint Damage?

Patients may experience:

• Persistent hip or groin pain
• Pain while walking
• Difficulty climbing stairs
• Reduced range of movement
• Stiffness after sitting or resting
• Difficulty putting on shoes or socks
• Problems getting in or out of a car
• Pain that interferes with sleep
• Reduced ability to perform daily activities

The severity of pain and limitation is often more important than age alone when deciding whether surgery may be appropriate.

How Is Hip Damage Diagnosed?

Evaluation usually begins with a medical history and physical examination.

The doctor may assess:

• Walking pattern
• Hip movement
• Muscle strength
• Location of pain
• Leg length
• Ability to perform everyday movements

X-rays are commonly used to show joint-space narrowing, bone changes and the severity of arthritis or damage.

Additional imaging may occasionally be needed depending on the condition.

What Happens Before Surgery?

Before a hip replacement, patients usually undergo a preoperative assessment to make sure they are medically ready for surgery.

This may include:

• Blood tests
• X-rays
• Urine tests
• Electrocardiogram when appropriate
• Review of medications
• Assessment of other medical conditions

Patients may also meet the physiotherapy or rehabilitation team before surgery.

Improving general fitness, stopping smoking and managing weight or chronic medical conditions can sometimes help reduce surgical risks and support recovery.

What Is a Total Hip Replacement?

Total hip replacement is the most common form of hip replacement.

During the operation, both major surfaces of the joint are replaced.

The damaged ball at the top of the thigh bone is removed and replaced with an artificial ball attached to a stem placed inside the thigh bone.

The damaged hip socket is also prepared and replaced with an artificial component.

The replacement parts may be made from materials such as:

• Metal
• Ceramic
• Medical-grade plastic

The exact implant used depends on factors such as age, bone quality, anatomy and the surgeon's approach.

What Is a Partial Hip Replacement?

A partial hip replacement replaces only the ball portion of the hip joint while leaving the natural socket in place.

This procedure is used more commonly for certain hip fractures, particularly in older or medically frail patients.

It is not normally the standard operation for severe arthritis affecting both sides of the joint.

What Happens During the Operation?

Hip replacement is usually performed under spinal anesthesia or general anesthesia.

During surgery, the damaged joint surfaces are removed and the artificial components are positioned to recreate the hip joint.

The operation usually takes around one to two hours, although the duration can vary.

Some procedures are performed through smaller incisions using minimally invasive techniques, but these approaches are not appropriate for every patient.

What Happens After Surgery?

After surgery, the patient is transferred to a recovery area where pain, blood pressure, circulation and the surgical wound are monitored.

Patients are usually encouraged to begin standing and walking as soon as it is safe.

A physiotherapist helps the patient learn how to:

• Walk with crutches or a frame
• Get in and out of bed
• Use stairs safely
• Perform rehabilitation exercises
• Protect the new hip during the early healing period

Early movement also helps reduce the risk of complications such as blood clots.

How Long Is the Hospital Stay?

Many patients are able to leave the hospital within approximately one to three days if recovery is progressing well.

The exact length of stay depends on factors such as:

• Age
• General health
• Type of surgery
• Mobility
• Wound healing
• Support available at home

Some patients may require a longer stay or additional rehabilitation.

What Is Recovery Like?

Recovery takes place gradually over several weeks and months.

During the first weeks, patients may have:

• Pain around the surgical area
• Swelling in the leg
• Reduced muscle strength
• Difficulty walking without support
• Fatigue

Walking and prescribed exercises are important parts of recovery.

Patients often begin with crutches or a walking frame and gradually reduce support as strength and balance improve.

When Can Normal Activities Resume?

Recovery varies considerably.

Many people return to basic daily activities within several weeks.

Returning to work may take around six weeks, although this depends on the type of job.

Driving is generally delayed until the patient can safely control the vehicle and has been cleared by the medical team.

Full recovery can take several months.

What Activities Are Recommended After Hip Replacement?

Low-impact activities are usually encouraged after recovery.

These may include:

• Walking
• Swimming
• Cycling
• Golf
• Light strengthening exercises

High-impact activities such as repeated jumping or certain contact sports may place more stress on the artificial joint.

Patients should discuss their activity goals with their orthopedic surgeon and physiotherapist.

What Are the Main Risks?

Hip replacement is a commonly performed operation, but complications can occur.

Possible risks include:

• Infection
• Blood clots
• Bleeding
• Hip dislocation
• Injury to nearby nerves or blood vessels
• Difference in leg length
• Fracture around the implant
• Loosening or wear of the artificial joint
• Need for additional surgery

A blood clot in the leg can occasionally travel to the lungs and cause a pulmonary embolism, which is a serious complication.

For this reason, patients may receive blood-thinning medication, compression stockings and early mobilization after surgery.

How Long Does an Artificial Hip Last?

Modern hip replacements are designed to last for many years.

However, artificial joints can gradually wear or loosen over time.

A patient who develops significant implant wear, loosening or repeated dislocation may eventually require another operation known as revision hip replacement.

The lifespan of an implant depends on factors such as activity level, body weight, implant type and individual anatomy.

What Warning Signs Should Be Reported?

After surgery, patients should contact their medical team if they experience symptoms such as:

• Increasing redness or swelling around the wound
• Pus or drainage from the incision
• Fever
• Increasing hip pain
• Significant swelling or pain in the leg
• Sudden difficulty walking
• Shortness of breath or chest pain

These symptoms may indicate infection, a blood clot or another complication requiring urgent assessment.

Life After Hip Replacement

For many patients, hip replacement significantly reduces pain and improves movement.

Successful recovery depends on more than the operation itself.

Rehabilitation, regular walking, muscle strengthening, maintaining a healthy weight and following the surgeon's instructions all contribute to long-term results.

Hip replacement is generally considered when the benefits of improved mobility and reduced pain are expected to outweigh the risks of major surgery.

Evaluation by an orthopedic joint-replacement specialist can help determine whether surgery is appropriate and which surgical approach is best suited to the individual patient.