[Cortisone-induced humerus head necrosis in acute myeloid leukemia: cartilage-preserving arthroscopic spongioplasty]. / Cortison-induzierte Humeruskopfnekrose bei akuter myeloischer Leukämie : Knorpelerhaltende arthroskopisch unterstützte Spongiosaplastik.

Osteonecrosis is a long known side effect in patients receiving cortisone or chemotherapy. A young patient was diagnosed with acute myeloid leukemia (AML) in 2005. After receiving combined cortisone and chemotherapy the patient was in complete remission. In 2007 a total hip replacement was necessary due to femoral head necrosis. Years after the joint replacement the patient reported acute shoulder pain without trauma. In this article an alternative procedure to an endoprothesis in a young patient with a humeral head osteonecrosis is presented.

Waveguide sidewall roughness measurement on full wafers by SEM-based stereoscopy.

We present a technique aiming at sidewall roughness measurement on integrated optical silica waveguides using a scanning electron microscope. The technique uses the principles of stereoscopy to retrieve sidewall topography. Practical implementation details and first results are provided.