Collagenous pseudotumours of the hands.

The investigation of physical and chemical properties of collagenous tissue before and after ArF laser irradiation

In vivo evaluation of edge-loading in metal-on-metal hip resurfacing patients with pseudotumours

OBJECTIVES Pseudotumours (abnormal peri-prosthetic soft-tissue reactions) following metal-on-metal hip resurfacing arthroplasty (MoMHRA) have been associated with elevated metal ion levels, suggesting that excessive wear may occur due to edge-loading of these MoM implants. This study aimed to quantify in vivo edge-loading in MoMHRA patients with and without pseudotumours during functional activ...

Treatment of idiopathic inflammatory orbital pseudotumours by radiotherapy.

Radiotherapy offers an alternative to steroid therapy for idiopathic inflammatory orbital pseudotumours. Twenty-four orbits were treated with radiotherapy, of which 75% responded adequately. There were no significant complications and no recurrences during the average follow-up time of 22.3 months (1-50 months). Biopsy, CT scanning, and steroid response of orbital pseudotumours can be helpful i...

Analysis of wear of retrieved metal-on-metal hip resurfacing implants revised due to pseudotumours.

The presence of pseudotumours, which are soft-tissue masses relating to the hip, after metal-on-metal hip resurfacing arthroplasty has been associated with elevated levels of metal ions in serum, suggesting that pseudotumours occur when there is increased wear. We aimed to quantify the wear in vivo of implants revised for pseudotumours (eight) and of a control group of implants (22) revised for...

Pseudotumours associated with metal-on-metal hip resurfacing: 10-year Newcastle experience.

We report the incidence of pseudotumours in a single-surgeon consecutive series of 670 metal-on-metal hip resurfacings performed in the last ten years, with a minimum follow-up of one year. Two cases of pseudotumours have been found and are discussed in detail including metrology and wear analyses of the explanted components. The first was a painless, large synovial cyst in the thigh, secondary...