In order to increase knowledge on the morphology and structure of the articular disc of the TMJ for a better understanding of the functional role of the same, it proceeded with an investigation on histological samples in the block of 'TMJ and periarticular tissues of adult rabbits and human fetuses at different stage of development.

A girl had repeated episodes of widespread osteolysis, subcutaneous fat necrosis, and periarticular fat necrosis mimicking arthritis. Her symptoms persisted for 4 years, after in initial episode of severe abdominal pain, and were accompanied by only minor abdominal symptoms. She was found to have a developmental pancreatic cyst (which was excised).

Heterotopic ossification is characterised by the periarticular deposition of ectopic bone. It typically occurs after trauma, neurogenic injury, or congenital causes. Idiopathic heterotopic ossification has been rarely reported. A patient who developed idiopathic heterotopic ossification in the intensive care unit without any known predisposing conditions is presented.

OBJECTIVES Locked plating constructs may be too stiff to reliably promote secondary bone healing. This study used a novel imaging technique to quantify periosteal callus formation of distal femur fractures stabilized with locking plates. It investigated the effects of cortex-to-plate distance, bridging span, and implant material on periosteal callus formation. DESIGN Retrospective cohort stud...

OBJECTIVE The degradation of articular cartilage, which characterises osteoarthritis (OA), is usually paired with excessive bone remodelling, including subchondral bone sclerosis, cysts, and osteophyte formation. Experimental models of OA are widely used to investigate pathogenesis, yet few validated methodologies for assessing periarticular bone morphology exist and quantitative measurements a...

INTRODUCTION Intraarticular hyaluronan (HA) is used clinically for symptomatic relief in patients with knee osteoarthritis (OA); however, the mechanism of action is unclear. In this study, we examined the effects of a single injection of HA on joint tissue pathology, mechanical allodynia and gait changes (measured by stride times) in a murine model of OA. METHODS OA was induced in the right k...

INTRODUCTION The aim of this study was to determine the factors, including markers of bone resorption and bone formation, which determine catabolic and anabolic periarticular bone changes in patients with rheumatoid arthritis (RA). METHODS Forty RA patients received high-resolution peripheral quantitative computed tomography (HR-pQCT) analysis of the metacarpophalangeal joints II and III of t...

Periarticular tissue calcifications are common in patients with chronic renal failure undergoing hemodialysis. We report the case of a patient on chronic hemodialysis for 10 years with significant improvement of isolated pseudotumoral calcinosis of the right hand after parathyroidectomy The aim of this study was to show the impact of parathyroidectomy on pseudotumoral calcinosis.

We describe a patient with rheumatoid arthritis and widespread joint and periarticular calcinosis related to self-medication with vitamin D, which was aggravated by oral phosphate therapy prescribed for her hypercalcaemia. Hydroxyapatite was shown in the synovial fluid from affected joints. The role played by tissue injury in the pathogenesis of soft tissue calcification is discussed.