No abstract available.
Osteolysis*

No abstract available.
Osteolysis ; Patella

Osteolytic disease of the bones have a myriad range of aetiology. One rare cause is Gorham’s disease or disappearing bone disease. This disease is a diagnosis by exclusion using correlation made with clinical presentation, radiological findings and histopathological confirmation. Although many different therapies have been advocated, none have been successful in fully controlling this disease. We present a case that was detected in a Chinese lady using diagnostic imaging, confirmed with computed tomography guided biopsy and successfully treated with joint reconstruction using endoprosthesis.
Osteolysis, Essential

Multicentric disappearing bone disease, or Gorham disease, is a rare entity. A middle age woman, presented to us with left sided antalgic gait and severe bony deformity of her left knee. Radiograph revealed massive bone defect of the medial condyle of the left tibia with subluxation of the knee joint. She was scheduled for knee replacement in six months. However, she developed another lesion over the right hip that typically mimicked the disease progression of disappearing bone disease. The right femoral head vanished progressively within three months without significant history of infection or trauma. Subsequent bone biopsy of the right femoral head and left tibia condyle confirmed the diagnosis. Total knee replacement was carried out for her left knee. She remained pain free on her left knee. A year later, after confirming by sequential radiographs that the osteolysis had stopped, total right hip replacement was performed. Five years later, she remained pain free and both the arthroplasties were stable.
Osteolysis, Essential

No abstract available.
Acrodermatitis* ; Atrophy* ; Osteolysis* ; Psoriasis*

Gorham's syndrome is a rare disorder involing a proliferation of vascular channels associated with extensive loss of bony matrix. It starts in bone, but it may secondarily involve soft tissue and adjacent bones. Although the osteolysis usuakky arrests spontaneously, its biologic behavior is difficult to predict. The mechanism of steolysis is unkown, and the role of osteoclasts is controverwial We have experienced one case of Gorham's syndrome affecting the scapula and clavicle, which is reported in this paper with brief review of literature.
Clavicle ; Osteoclasts ; Osteolysis ; Scapula

Gorham disease is a rare disorder characterized by proliferation of vascular channels resulting in destruction and resorption of osseous matrix. There is no standard treatment defined for this disease, and variable therapies such as medical, surgical, and radiation therapy have been used. Antiresorptive medication, such as bisphosphonate, is used in Gorham disease because they suppress the course of osteolysis and angiogenisis. We report a 9-year-old boy with Gorham disease, who was presented with recurrent hemothorax and treated by pamidronate. After treatment, he showed no recurrence of hemothorax for more than 2 years.
Child ; Diphosphonates ; Hemothorax ; Humans ; Osteolysis ; Osteolysis, Essential ; Recurrence

Free Tissue Flaps ; Humans ; Mandible ; Osteogenesis ; Osteolysis ; Osteolysis, Essential

The early loosening after total knee arthroplasty is one of the most serious complications. For the purpose of prevention against the complication, many researches were carried out in implant's quality, design and operative technique, etc. The mechanism of the loosening after arthroplasty is considered that micromotion makes a gap between implant and bone, the subsidence of implant and osteolysis around the implant. The authors found one case of the early isolated loosening of patellar component in a patient who had undergone primary total knee arthroplasty for osteoarthritis thirteen month ago. We tried to elucidate the mechanism of the early loosening by clinical and radiologic assessment of this case.
Arthroplasty* ; Humans ; Knee* ; Osteoarthritis ; Osteolysis

Wear of polyethylene liner and osteolysis appear to be topical problems after long-term follow-up in total hip arthroplasty(THA). Age and activity of patients, manufacturing procedure of polyethylene liner, thickness of the liner, position of acetabular cup, and material of artificial femoral head have of effects on the degree of wear. In addition, conformity, congruency and micromotion between liner and metal cup are likely to be related to the wear. The purpose of this study is 1) to determine the stress caused by contact between metal and polyethylene components, 2) to evaluate the effects of conformity, congruency, and fixation between metal and polyethylene components, on contact stress in acetabular cups and 3) to identify the design parameters of the commercial acetabular cup within the constraints imposed by the overall functional requirements of total joint replacement. The specimens applied to six different commercial cups made in five companies. The methods was performed on dynamic test and static test to rely on load conditions, estimated the gap between the components through LM. The results showed H-G II cup had the most excellent congruency because of the narrowest interval between two components.
Acetabulum ; Head ; Hip ; Humans ; Joints ; Osteolysis ; Polyethylene*