Rapidly Progressive Osteoarthritis of the Hip: A Prospective Study.

Rapidly progressive osteoarthritis of the hip (RPOH) is a rare syndrome that involves the femoral head and acetabulum. We analyzed the incidence of RPOH in 2022. The inclusion criteria included a clinical history of pain for 1-6 months and a decrease in joint space of > 2 mm within one year or a decrease in joint space by 50% in that time accompanied by femoral and/or acetabular bone destruction.

Ischiofemoral impingement: hip pain of infrequent cause.

Hip pain is a frequent cause of medical attention in the daily clinical practice. Among the different causes included in the differential diagnosis we find ischiofemoral impingement, described initially in patients after joint replacement surgery, but later found in patients with no history of a causal disease.