BACKGROUND To study whether thyroid function was associated with risk of hip or knee replacement due to primary osteoarthritis. METHODS In a prospective cohort study, data from the second and third survey of the Nord-Trøndelag Health Study were linked to the Norwegian Arthroplasty Register in order to identify total hip or knee replacement as a result of primary osteoarthritis. RESULTS Amon...

contribution to radiographic hip osteoarthritis in women: results of a classic twin study. Arthritis Rheum 2000;43:2410–16. 22 Antoniades L, MacGregor AJ, Matson M, Spector TD. A cotwin control study of the relationship between hip osteoarthritis and bone mineral density. Arthritis Rheumatism 2000;43:1450–5. 23 Bellamy N, Klestov A, Muirden K, Kuhnert P, Do KA, O’Gorman L, et al. Perceptual var...

Background High survival has been reported for resurfacing arthroplasty in patients with femoral deformities. Also, hardware removal may not always be necessary with resurfacing arthroplasty and may eliminate some of the difficulties performing total hip arthroplasty (THA) in patients with posttraumatic osteoarthritis. Questions/purposes We therefore asked: (1) are survivorship higher in patien...

Excessive acetabular cover secondary to a retroverted acetabulum causes pincer impingement, which may cause early osteoarthritis of the hip. Our aim was to determine if there was a relationship between acetabular version and osteoarthritis of the hip. Using image processing and analysis software we studied 117 CT images of the hip in patients aged less than 65 years who had undergone a CT virtu...

OBJECTIVES To study factors associated with passive hip rotation range of motion (ROM) in former elite male athletes. METHODS Athletes were interviewed about hip pain, disability, lifetime occupational loading, and athletic training. The passive hip rotation was measured with a Myrin inclinometer in 117 former elite male long distance runners, soccer players, weight lifters, and shooters aged...

The authors investigated the influence of physical strain at work on radiological signs of hip osteoarthritis. The study included 295 men and 298 women aged over 45 from an urban area who were classified in four groups according to physical demands of their occupation. The evaluation included clinical and radiological signs of hip osteoarthritis. The association between hip osteoarthritis and o...

BACKGROUND The association between progression of knee osteoarthritis and progression of osteoarthritis at sites distant from the knee is unclear because of a lack of multisite longitudinal progression data. OBJECTIVE To examine the association between radiological progression of knee osteoarthritis and osteoarthritis of the hands, hips, and lumbar spine in a population based cohort. METHOD...

Ventrodorsal pelvic radiographs were made of 32 adult dogs under general anaesthesia. The hip joints were evaluated according to the severity of osteoarthritic changes graded as 0, 1, 2 or 3. The dogs were euthanased, the hip joints opened and the ligamentum capitis femoris dissected out in toto. The volume of each ligament was determined using a water displacement technique and the mean volume...

BACKGROUND Osteopetrosis is an uncommon, inherited disease, characterized by osteosclerosis, obliteration of the medullary canal, calcified cartilage and brittle bone due to impaired osteoclast resorption. Osteoarthritis is common in patients with osteopetrosis. If the patient has pain and dysfunction, total joint arthroplasty is often the treatment of choice but presents many intraoperative an...

Background. Local plexiform neurofibroma can lead to deformity of the pelvis, valgus deformity of femoral neck, and joint capsule laxity. We report a case of secondary hip osteoarthritis with subluxation and coxa vara deformity resulting from an extra-articular neurofibroma treated with total hip replacement. Case Description. A 39-year-old man had a large benign plexiform neurofibroma at butto...