OBJECTIVE To assess if the Hawkins sign can predict whether or not astragalus fractures of the neck will develop avascular necrosis. It is also assessed whether the occurrence of this complication is related to the displacement of the fracture, soft tissue injury, or delay in the reduction or surgery. The results were compared with those found in the literature. MATERIAL AND METHODS A retrosp...

The McKee-Farrar (MF) prosthesis was the first widely used total hip replacement (THR) to employ a metal-on-metal (MoM) articulation. These implants had a high rate of early aseptic loosening but a number achieved good long-term implant survival, stimulating the reintroduction of second and third generation implants of this type. In this study we analysed archival histopathology of periprosthet...

PURPOSE To examine and compare treatment outcomes for slipped capital femoral epiphysis (SCFE). METHODS 24 patients with acute or acute-on-chronic SCFE underwent preoperative traction, 13 of them followed by in situ screw fixation (group A), and the remaining 11, manipulation with screw fixation (group B). Their treatment outcomes (according to the Aadalen criteria) and complications were com...

Background and purpose - There are limited data on risk factors for avascular necrosis of the hip, but cirrhosis has been proposed as a risk factor. We examined the association between cirrhosis and incidence of total hip arthroplasty for avascular necrosis. Methods - We used nationwide healthcare data to identify all Danish residents diagnosed with cirrhosis in 1994-2011, and matched them 1:5 ...

We evaluated histologically samples of synovial tissue from the knees of 50 patients with rheumatoid arthritis (RA). The samples were taken during revision for aseptic loosening. The findings were compared with those in 64 knees with osteoarthritis (OA) and aseptic loosening and in 18 knees with RA without loosening. The last group had been revised because of failure of the inlay or the couplin...

Avascular necrosis, diagnosed on the basis of either a specific pathological modification of the articular surfaces of bone or its radiologic appearance in vertebral centra, has been recognized in many Mesozoic marine reptiles as well as in present-day marine mammals. Its presence in the zoological and paleontologic record is usually associated with decompression syndrome, a disease that affect...

CONCLUSIONS 1 . A relatively large number of fractures of the neck of the femur occur in which no active attention can be given to the fracture, because of the general condition of the patient. About 65 to 70 per cent. of the cases receive active treatment for the fracture. 2. Various methods of treatment w’ith metallic fixation leave a great deal to be desired as to the outcome. 3, Osteotomy a...