PubMed HealthSearch

PubMed · 807082

Ankle lesions.

Abstract

The author gives an account of the different clinical and roentgenological methods that are used today in diagnosing ligament injuries and fractures of the ankle. Therapeutically the importance of an anatomically satisfactory and preferably stable joint reconstruction is emphasized in order to reduce the frequency of ankle instability and arthrosis deformans. Probably most of the problems in ankle traumatology are already solved; however, total joint replacements may become a valuable contribution to our therapeutic arsenal.

Explore related subjects

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

C A Cedell. 1975. Ankle lesions.. https://pubmed.ncbi.nlm.nih.gov/807082/

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related citations

Foot currents and ankle SARs induced by dielectric heaters.

Data are presented on ankle-specific SARs and foot currents as a function of strengths of radio-frequency electromagnetic fields encountered by operators of dielectric heaters. The determination of foot currents was based on near-field exposures in which reactive coupling dominates, and which can result in substantial SARs in exposed workers. The operators were located less than one wavelength from--usually within one meter of--the dielectric heaters, which generated fields at frequencies from 6.5 to 65 MHz. At distances normally assumed by workers, maximal strengths of electric fields ranged from 10(4) to 2.4 x 10(6) V2/m2; maximal strengths of magnetic fields ranged from 5.0 x 10(-3) to 33.3 A2/m2. Currents through both feet to ground were measured while operators stood where they normally worked. Maximal currents ranged from 3 to 617 mA, rms. Nearly 27 percent of the dielectric heaters induced foot currents that exceeded the 200-mA limit that has been proposed for a new ANSI C95.1 standard. Twenty percent of the heaters induced foot currents that exceeded 350 mA. SARs in ankles were calculated from foot currents, and they approximated 5 W/kg at 100 mA, 29 W/kg at 250 mA, and 57 W/kg at 350 mA. The maximal SAR in the ankle was approximately 176 W/kg at 617 mA.

Ankle

Three-dimensional computed tomography studies of the tendons of the foot and ankle.

Three dimensional (3D) reconstruction techniques were applied to serial computed tomography scans of a cadaveric foot. Subsequent manipulations of the image data on a 3D imaging workstation facilitated differentiation of tendon from surrounding tissue. Through the use of free-rotation and density thresholding, detailed 3D images of the major tendons were produced and displayed. The value of the technique for education and its potential for diagnosis is discussed.

Ankle