Abstract: A material for making a bone endoprosthesis having a reinforcing base composed of nets which are made of a chemically and biologically inert metal and elastic polymeric material. The entire space confined within the nets is occupied by the binder doped with an antiseptic, the volumetric ratio between the metal nets and the entire material being selected such that the modulus of elasticity of the material approximates that of the bone tissue to be replaced.An endoprosthesis of the invention is cross-sectionally shaped as a row of spirals made of the proposed material and interlinked through an element made of the same network material, while the entire space between the prosthesis components is embedded in the binder. In an embodiment of the present invention, the endoprosthesis has a spiral sheath made of the proposed material. The interior space of the sheath accommodates several spirals, each comprising a number of spirals interlinked by the element made of the proposed network material.

Abstract: The surgical instrument is adapted to adjust the position of bone fragments of a limb. It has an outer ring with longitudinal connecting members and a smaller ring carrying clamps for needles fixed within the larger ring. A system of threaded studs enables the inner ring to move in any direction and turn within the outer ring. The inner ring can also be positioned in a plane turned by an angle with respect to the plane of the outer ring.

Abstract: An instrument for treating injuries and diseases of bones and joints which incorporates rings with needles passed through bone fragments. Adjacent rings are interconnected by longitudinal permanently sprung members, viz. helical springs and/or rods connected with the rings by means of nuts. To stabilize the structure, strengthening rings composed of separate arches and carrying locking means for additional needles may be inserted into the instrument.