Secondary coxarthrosis is a form of hip arthrosis that occurs as a result of another pre-existing condition or trauma that has damaged the structure of the joint.

Causes: Common causes include: avascular necrosis of the femoral head (Chandler disease), rheumatoid arthritis, ankylosing pelvispondylitis, luxating hip dysplasia, hip fractures or dislocations in background and bone tumors at the upper end of the femur.

Symptom: Pain in the hip, which may radiate to the groin, buttock or knee, rigidity and movement limitation. Walking becomes difficult and, over time, may become muscle atrophy and removing from the axle of the hip.

Medical assessment: Pelvis and hip X-rays show specific changes: joint space narrowing, osteophyte, changes in the shape of the femoral head and coccyxas well as signs of the underlying disease (dysplasia, inflammatory lesions or post-traumatic sequelae).

Treatment: In the early stages, it is recommended anti-inflammatory medicines, chondroprotective, physiotherapy and adaptation of activities. In advanced forms, total hip arthroplasty (prosthesis) is the most effective solution to relieve pain and restore mobility.

Surgery: It is indicated when pain affects quality of life and the patient no longer responds to conservative treatment. Hip replacement has excellent results in most cases, especially when the underlying disease is stabilized.