By Rigmor Texhammar RN, Christopher Colton M. B., B. S., L. R. C. P., F. R. C. S., F. R. C. S. Ed. (auth.)
The unique AO/ASIF Instrumentation guide offered a concise and whole description of the AO tools. Thoughtfully constructed by means of Fridolin Sequin and Rigmor Tex hammar, the guide mentioned in a transparent type the aim and care of many of the AO tools which are dealt with through the working room employees. One vital characteristic of the 1st variation was once a close list of the tools required for the extra universal operative techniques for treating fractures. Fridolin Sequin used to be well-suited to writer the 1st version: his 15 years of expertise as a technical engineer for the AO gave him in-depth wisdom of AO tools, and he drew at the scientific wisdom of Rigmor Texhammar, a expert and di rector of the AO classes for nurses. Its unique function of com bining a column of textual content with a column of illustrations intended the guide speedy grew to become authorized as a typical. via 1981, trans lations might be present in English, French, Spanish, and Italian. no longer unusually, the guide was once very popular.
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Additional info for AO/ASIF Instruments and Implants: A Technical Manual
The plate shields the fractured and temporarily fixed bone. Tension Band: An implant (wire or plate) functioning according to the tension band principle. The bone carries tensile force when it undergoes flexural load and the implant is attached to the convex surface; the bone, and especially the cortex far from the plate, is then dynamically compressed. The plate is able to resist very large amounts of tensile force, so that the bone in turn can best resist compressive load. Vascularity: A tissue is vascularised if it contains blood vessels connected to the main circulatory system.
3 Bone Healing Pattern Immediate function is more important for maintaining the integrity of the locomotor system than for the pattern of bone healing. Indirectly, the bone healing process is enhanced by a perfectly functioning blood supply resulting from optimal recovery of limb function soon after the fracture and its treatment. 4 The Principle of Soft Tissue Care In the early days of internal fixation, the surgeon approached the bone without paying much attention to the soft tissues. It was assumed that the periosteum had little to do with fracture healing.
We have not observed any "magic biological effect" of compression. e. when the plate is tensioned, it is called a compression plate. The tension in the plate is produced by the application of one plate end to the bone and by the use of a removable compressor or by eccentric placement of the screws within so-called compression holes in the DCP or LC-DCP, for example. The fracture line in between will then be compressed (interfragmental compression). The compression produced by the compression plate acts outside the fracture, and is therefore asymmetric and produces high local stress in the cortex immediately below the plate.
AO/ASIF Instruments and Implants: A Technical Manual by Rigmor Texhammar RN, Christopher Colton M. B., B. S., L. R. C. P., F. R. C. S., F. R. C. S. Ed. (auth.)