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Biomedical subjects

A Rüter

Publications and source records attributed to A Rüter.

At least 109 records · Page 6Linked to original sources
PubMed1978

[Corrective orthopedic surgery following injury to the epiphyses adjacent to the knee joint (author's transl)].

Epiphyseal lesions adjacent to the knee joint may result in disturbances of growth with subsequent changes of leg length and knee axis. Both conditions involving the weight-bearing lower extremities call for correction. Knowledge of the epiphysis' pathophysiology, the case history, and the actual situation compared to the contralateral extremity is the basis of management along with the command of physiologically reasonable as well as technically feasible operations. Final normalisation may be achieved by static correction using modern internal fixation techniques and bone grafts once growth is terminated. Serious axis deviations and leg length discrepancies exceeding 10 degrees and 3 centimeters respectively should, however, be corrected, even if growth is still in progress. It may be possible to eliminate the cause of deformation by removing an epiphysiodesis. Methods to accelerate growth have not been useful clinically. Temporary deceleration of growth by means of epiphyseal staples is justified in certain cases provided close follow-up is possible. Static correction as outlined will also produce the most dependable results if growth is still in progress.

Epiphyses↗
PubMed1977

Bone marrow cell scene segmentation by computer-aided color cytophotometry.

Computer scene segmentation of touching cell images in bone marrow, on the basis of color information, is achieved using digitized scans at three different wavelengths of light. With trivariate histograms and Euler's coordinate transformation, it is possible cytophotometrically to isolate, on the basis of chromatic differences, individual heterogeneous cells located in cell groups. The ability of the described computer methods to isolate correctly the touching cell images is determined by visual comparison of the cells as seen in the microscope and the computer-generated displays of the scanned and segmented scenes.

Bone Marrow Cells↗