Hip osteoarthritis

Osteoarthritis of the hip is a degenerative condition of the hip joint that can cause pain, stiffness and swelling.


The origin of osteoarthritis of the hip can be multifactorial and can be influenced by several factors. Some of the common causes and risk factors include:

  • Natural wear and tear: With aging, the cartilage that lines the hip joint gradually wears away. This natural wear and tear of the cartilage can lead to the development of osteoarthritis of the hip in the elderly.
  • Previous injuries: Injuries to the hip, such as bone fractures or articular cartilage injuries, can increase the risk of developing osteoarthritis of the hip in the future. Injuries can alter the structure and function of the hip joint, which contributes to cartilage wear and tear.
  • Structural malformations: Structural abnormalities of the hip, such as hip dysplasia or Legg-Calvé-Perthes disease, can predispose to osteoarthritis of the hip. These conditions can alter the congruence and stability of the joint, which increases loading and cartilage wear.
  • Overload and overuse: Intense physical activities, impact sports or jobs that involve excessive load on the hip can increase the risk of osteoarthritis of the hip. Repetitive overloading and excessive stress on the hip joint can damage the cartilage and accelerate wear and tear.
  • Genetic factors: Some studies suggest that certain genes may predispose a person to develop osteoarthritis of the hip. Genetics may influence the structure and function of joint tissues, which may increase the risk of developing the disease.


Diagnosis of osteoarthritis of the hip is based on a thorough clinical evaluation and diagnostic testing. Some of the methods used to diagnose osteoarthritis of the hip include:

  • Medical history: The physician will collect information about the patient's symptoms, such as hip pain, stiffness, limitation of motion and relevant medical history. Possible risk factors, such as previous injuries or family history of osteoarthritis, will also be investigated.
  • Physical examination: During the physical examination, the physician will evaluate the mobility of the hip, the presence of pain, crepitus (friction noise) and signs of deformity or gait disturbance.
  • Radiographs: Radiographs are an essential diagnostic tool for evaluating osteoarthritis of the hip. Radiographic images can show characteristic signs of the disease, such as joint space narrowing, osteophyte (bone spurs) formation and joint deformity. X-rays can also help rule out other conditions that may cause similar symptoms.
  • Magnetic Resonance Imaging (MRI): In some cases, MRI may be used to obtain more detailed images of the soft tissues of the hip, such as cartilage and ligaments. MRI can provide additional information about the degree of damage to the joint and help rule out other pathologies.
  • Ultrasound: Although X-ray and MRI are the most common imaging tests for the diagnosis of osteoarthritis of the hip, ultrasound can also play a role in the evaluation of the joint. Ultrasound can help assess cartilage thickness, the presence of synovial fluid (joint effusion) and soft tissue structure.


  • Primary vs. secondary osteoarthritis: This classification is based on the underlying cause of hip osteoarthritis. Primary osteoarthritis refers to degenerative disease that occurs due to natural wear and tear of the joint with age. Secondary osteoarthritis occurs as a result of pre-existing injury, disease or structural abnormalities of the hip, such as hip dysplasia, rheumatoid arthritis or other conditions.
  • Inflammatory phenotype: Some patients with osteoarthritis of the hip may have signs and symptoms of inflammation in the joint, such as swelling, warmth and redness.
  • Mechanical phenotype: This phenotype is characterized by mechanical factors, such as altered biomechanics of the hip joint, the presence of osteophytes and asymmetric distribution of joint wear.


Treatment of osteoarthritis of the hip is aimed at relieving symptoms, improving function and slowing disease progression. Treatment approaches may vary depending on the severity of symptoms and joint involvement.

Conservative management:

  • Analgesic and anti-inflammatory medications: Medications such as acetaminophen, NSAIDs (non-steroidal anti-inflammatory drugs) may be prescribed to control pain and reduce inflammation.
  • Physical therapy: Physical therapy may include strengthening and stretching exercises, as well as physical modalities such as heat or cold therapy to improve hip mobility and strength.
  • Weight loss: If the patient is overweight or obese, losing weight can relieve the load on the hip joint and reduce stress on the hip joint.
  • Intra-articular infiltrations: Corticosteroid injections can be performed in the hip joint to reduce inflammation and pain. These infiltrations may provide temporary relief of symptoms, but are not a long-term solution.

Surgical treatment:

  • Hip arthroplasty: In cases of advanced osteoarthritis of the hip with severe symptoms, hip replacement surgery may be considered. This option involves removal of the damaged joint and replacement with an artificial prosthesis.
  • Osteotomy: In some cases, especially in young patients with specific deformities or malformations, an osteotomy may be performed to reposition or realign the joint and relieve symptoms.
  • Arthroscopic surgery: In selective cases, arthroscopic surgery may be used to treat certain conditions associated with osteoarthritis of the hip, such as labral lesion or intra-articular free body removal.