What is hip arthrosis (coxarthrosis)?

Hip osteoarthritis, also known as coxarthrosis, is one of the most common forms of osteoarthritis and affects the hip joint. It is a degenerative condition in which the joint cartilage is progressively worn away. The joint cartilage ensures smooth movement and absorbs stress on the hip joint. When this cartilage is worn out, it leads to pain, stiffness, and loss of function.

Anatomy of the hip joint

The hip joint is a ball-and-socket joint consisting of the spherical head of the femur and the socket in the pelvis. It is covered by a protective cartilage layer that facilitates joint movement.

Why is the hip joint susceptible to osteoarthritis?

Since the hip joint bears the entire body weight and is exposed to high mechanical stress, it is particularly susceptible to wear and tear such as arthrosis.

Causes of hip arthrosis

The causes of coxarthrosis can be divided into primary and secondary factors.

1. Primary osteoarthritis

• Age-related wear: With increasing age, the cartilage loses elasticity.
• Genetic predisposition: Family history can increase the likelihood.

2. Secondary Osteoarthritis

• Injuries: Previous fractures or dislocations.
• Inflammatory diseases: Rheumatoid arthritis.
• Anatomical deformities: Congenital hip dysplasia.
• Incorrect loading: Leg length discrepancies or overweight.

Risk factors

• Obesity: Excess weight puts excessive strain on the joint.
• Occupational stress: Heavy lifting.
• Sports overload: Especially sports with high jumping stress.

Symptoms of hip osteoarthritis

1. Pain

• Pain in the groin, buttocks, or thigh.
• Initially load-dependent pain, later also rest pain.

2. Stiffness and limited mobility

• Stiffness after getting up or after prolonged inactivity.
• Difficulty putting on shoes or climbing stairs.

3. Other symptoms

• Joint noises when moving.
• Muscle wasting.

Diagnosis of osteoarthritis of the hip joint

1. Medical History A detailed conversation with the doctor about your complaints.

2. Clinical examination

• Joint mobility test.
• Tenderness tests.

3. Imaging

• X-ray: Assessment of cartilage thickness.
• MRI: In unclear cases for detailed examination of cartilage and soft tissues.
• Ultrasound: Diagnosis of joint effusions.

Treatment of hip arthrosis

1. Conservative Therapy

• Medications: NSAIDs, cortisone injections.
• Physiotherapy: Building up the surrounding musculature.
• Hyaluronic acid: Promotes lubrication in the joint.

2. Surgical Therapy

• Joint replacement: Hip prosthesis for severe wear.
• Minimally invasive interventions: Early intervention for mild wear.

Hip joint surgery for osteoarthritis

1. Indications for surgery

• Progressive pain.
• Severe mobility restriction.

2. Surgical methods

• Total hip replacement (THR): Complete replacement.
• Short stem prosthesis: Suitable for younger patients.

3. Prognosis and lifespan

• Durability of modern prosthetics: 20-30 years expected today.

Living with hip arthrosis

1. Daily relief

• Use of a walking stick or shoe lifts.
• Conversion of living space (barrier-free access).

2. Exercise and sports

• Joint-friendly sports: swimming, cycling.
• Avoiding high-impact sports like jogging.

Prevention of hip joint arthritis

1. Healthy lifestyle

• Weight control.
• Balanced diet with anti-inflammatory foods (e.g., fish oil, turmeric).

2. Proper loading

• Regular moderate exercise to strengthen cartilage.
• Avoiding overload through heavy work.

Advances in osteoarthritis therapy

1. Biological therapy approaches

• Use of stem cells.
• Gene therapy for regeneration.

2. Future Technologies

• 3D-printed implants.
• Robot-assisted surgeries.

Frequently Asked Questions about Hip Arthritis

How quickly does hip osteoarthritis progress?

The progression of hip joint arthritis varies greatly from person to person. Factors such as overall joint stress, genetic predisposition, and body weight play a crucial role. Often, the condition starts with mild symptoms that worsen over the years. However, early diagnosis and the start of suitable therapy can help slow down the progression of arthritis and maintain quality of life.

Can arthrosis of the hip joint be cured?

Currently, there is no cure for osteoarthritis, as the damage to the cartilage is irreversible. However, conservative or surgical therapies can reduce pain and improve mobility. The goal is to control symptoms and slow the progression of the disease as much as possible.

Which sports are suitable for hip arthrosis?

Gentle forms of exercise such as swimming, cycling, or Nordic walking are recommended for hip osteoarthritis. These activities promote blood circulation, support the nutrition of the cartilage, and strengthen the muscles without putting excessive strain on the joints. High-impact sports like running or soccer should be avoided.

When should a hip replacement be considered?

A hip prosthesis is usually recommended when conservative therapies are no longer sufficient to alleviate pain or maintain mobility. If quality of life is severely limited and daily activities such as walking, standing, or climbing stairs become a challenge, a total endoprosthesis (TEP) can be an effective solution.

What are the latest advances in the treatment of osteoarthritis?

Modern medicine is constantly developing new approaches to osteoarthritis treatment. These include:

• Biological therapies: Use of stem cells for cartilage regeneration.
• Advanced implants: Custom-made prostheses for better adaptation to individual anatomy.
• Digitization: Applications and wearables to improve therapy monitoring and adjustment.
• Minimally invasive surgical techniques: Gentler procedures with shorter recovery times and lower risk of complications.

How long does a hip prosthesis last in osteoarthritis?

The lifespan of a hip prosthesis was typically 15 to 20 years in the past. Today, one can safely assume 20-30 years. In younger patients or those with high physical activity, this period may be shortened. Thanks to modern materials and techniques, prostheses with longer durability are available on the market. Regular follow-up examinations are crucial to detect possible complications early.

What are the alternatives to surgery for arthrosis?

In addition to surgical treatment, the following options are available:

• Injections of hyaluronic acid or platelet-rich plasma (PRP).
• Physiotherapy to strengthen muscles and improve mobility.
• Pain medication and anti-inflammatory agents.

The choice of therapy depends on the severity of the arthritis, the patient's age, and overall health. Comprehensive consultation with a specialized orthopedist is recommended.

Conclusion

Hip osteoarthritis (coxarthrosis) is a challenge that can burden those affected both physically and psychologically. Nevertheless, there are numerous ways to maintain quality of life and slow the progression of the disease. With the right therapeutic approaches and early diagnosis, patients can lead active and fulfilling lives. Developments in endoprosthetics and biological medicine offer hope for ever-better treatment options in the future.