The optimal treatment for combined osteochondritis dissecans (OCD) with considerable bony defect of the lateral femoral condyle (LFC) and torn discoid lateral meniscus is unclear. We present a case of a 15-year-old female who was a gymnast and had a large OCD lesion in the LFC combined with deficiency of the lateral meniscus. The patient underwent the "one-step" technique of osteoperiosteal aut...

Because of the frequent presence of polyarthritis and the rheumatoid factor in cases of systemic lupus erythematosus (S.L.E.) and that of the L.E.-cell phenomenon and visceral lesions in cases of rheumatoid arthritis, it was thought that it would be profitable to study the correlation between the two diseases. The disseniination of discoid lupus erythematosus, especially after exposure to stron...

Linear chronic discoid lupus erythematosus is a rare manifestation of cutaneous lupus in which erythematous, atrophic, dyschromic lesions are located along the lines of Blaschko. This report describes the case of a 15-year old boy with a 2-year history of discoid, erythematous, hyper and hypopigmented lesions with central atrophy, situated along the lines of Blaschko on his right arm. Histopath...

Bone growth is driven by cell proliferation and the subsequent hypertrophy of chondrocytes arranged in columns of discoid cells that resemble stacks of coins. However, the molecular mechanisms that direct column formation and the importance of columnar organization to bone morphogenesis are not known. Here, we show in chick that discoid proliferative chondrocytes orient the division plane to ge...

Fast electromagnetic drive mechanism shows broad application prospects in many areas, but there is still a lack of unified evaluation parameters as to evaluate the dynamic characteristics due to diversity and complexity of the mechanisms. Three interrelated evaluation parameters are presented for topology analysis, namely the electromagnetic force sensitivity coefficient, the initial time const...