Functional Reconstruction of the Mandible: Experimental by Dr. Dr. Roland R. Schmoker (auth.) PDF

By Dr. Dr. Roland R. Schmoker (auth.)

ISBN-10: 364271756X

ISBN-13: 9783642717567

ISBN-10: 3642717586

ISBN-13: 9783642717581

Since 1958 the organization for the learn of inner Fixation (ASIF) has labored to set up the experimental and biomechanical prin­ ciples of the operative remedy of fractures. it's been confirmed that quick, pain-free mobilization, made attainable via solid inner fixation, is the major to restoring functionality in a fractured extremity. an identical rules have been utilized in 1972173 by means of Roland Schmoker, who constructed a common plate and complex tool set designed before everything for the therapy of comminuted fractures of the mandible. to increase the purposes of his plate to reconstructions after ex­ tensive tumor resections, he supplemented the equipment with tem­ poromandibular joint prostheses and anchoring parts for the at­ tachment of dentures. He first confirmed the useful balance of those implants experimentally in sheep. Later he discovered that the minipig had a extra human-like jaw form and masticatory motion, and so he verified the implants in 37 mini pigs that underwent wide mandibular re­ sections with out bone grafting, utilizing sequential dye injections and postoperative weight achieve to chart the development of osseous regener­ ation. Seven different animals weren't operated and served as controls.

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Extra resources for Functional Reconstruction of the Mandible: Experimental Foundations and Clinical Experience

Sample text

37 and 38). Already, initial reports have been published on the development and clinical use of the reconstruction plate [109, III, 113, lIS, 127, 128, 131]. 0-mm screws. 2 Condylar Prosthesis Both cemented [123] and uncemented articular prostheses [5] owe their anchorage to frictional bonding between the stem of the prosthesis and the bone. DCP = "Dynamic Compression Plate" [2, 3, 8]. The DC hole is based on the spherical gliding principle and is formed geometrically by the intersection of an inclined half-cylinder with a horizontal half-cylinder.

The condylar prosthesis consists of a head, neck, and stem. The baseplate with spike is compressed against the bony neck stump by means of the 3 DC holes in the vertical limb. The implant is additionally secured to the base of the mandible through the holes in the horizontal limb mm lengths. Driving screws into the DC holes has the effect of pressing the baseplate against the articular process. The lower limb of the prosthesis has a total of three round holes, which accept lag screws. These screws and the screws in the DC holes produce the static tensile forces perpendicular to the long axis of the bone.

3 Operating Technique In the extraoral approach for inserting the reconstruction plate with condylar head (Table 4), the skin was washed, shaved, and aseptically prepared. The incision was made from the root of the ear along the vertical ramus and over the mandibular angle to the horizontal ramus and chin, extending across the midline to the horizontal ramus of the opposite side. Soft-tissue trauma was simulated by mobilizing a narrow flap anteriorly, which overlay the plate when the wound was closed (animals 30-39).

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Functional Reconstruction of the Mandible: Experimental Foundations and Clinical Experience by Dr. Dr. Roland R. Schmoker (auth.)

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