Rapidly destructive arthrosis of the hip joint (RDA) is commonly seen in elderly females with unilateral involvement, which has been reported to occur in a joint that initially appears normal.1^–3 We describe a case of osteoarthritis, which underwent rapid destruction of the hip joint over a period of 2 months.

A 62-year-old woman presented with mild left hip pain of recent onset. Her height was 157 cm and body weight was 49 kg. Her body mass index indicated she was in the normal range (19.9 kg/m²). No evidence of infection, inflammatory arthropathies or neuropathy was noted. She had a history of Hashimoto disease, asthma …