Eduardo Collantes and Vander Cruyssen and colleagues are to be congratulated for their multicenter study focusing on hip involvement in ankylosing spondylitis (AS). The study included patients from two centers in Belgium, two in Mexico and several in Spain. It is self-evident that only a multicenter study can provide sufficient patients to answer the questions posed. For reasons that are unclea...

Total hip replacement is a major surgical procedure usually associated with significant pain in the early postoperative period. Several anaesthetic and analgesic techniques are in common clinical use for this procedure but, to date, clinical studies of pain after total hip replacement have not been systematically assessed. Using the Cochrane protocol, we have conducted a systematic review of an...

BACKGROUND Information regarding the effects of body size in childhood and early adulthood on the risk of hip and knee replacement in later life is inconsistent. We aimed to assess their effect, taking into account body mass index (BMI) in middle-age. METHODS Prospective cohort (Million Women Study) of 791,034 women with information on birth weight, body size at age 10 and age 20, and current...

Hip arthrodesis remains a viable surgical technique in well selected patients, typically the young manual labourer with isolated unilateral hip disease. Despite this, its popularity with patients and surgeons has decreased due to the evolution of hip replacement, and is seldom chosen by young adult patients today. The surgeon is more likely to encounter a patient who requests conversion to tota...

BACKGROUND We examined the effect of adult weight change on risk for total hip replacement resulting from primary osteoarthritis, using a prospective study design. METHODS We linked data on body mass index and body weight from 3 screening surveys in 3 Norwegian counties (mean ages at screenings 34, 43, and 47 y; n = 38,868) with follow-up data on total hip replacement (n = 572). Mean age at t...

Total hip joint replacement is unavoidable in the orthopedic application, for improving the quality of patient life suffering from arthritis. Replacing damaged joint with artificial joint gaining popularity and it became a need in such cases. While joint replacement represents success stories in the field of orthopedic surgery, but maintaining implant for last long is still challenge. The avera...

PURPOSE The development of persistent postoperative pain may occur following surgery, including total hip replacement. Yet, the prevalence may depend on the definition of persistent pain. This observational cohort study explored whether the prevalence of persistent pain after total hip replacement differs depending on the definition of persistent pain and evaluated the impact of ongoing pain on...