Read e-book online AO ASIF Principles in Spine Surgery PDF

By Prof. Dr. Max Aebi FRCS(C), John S. Thalgott M.D., John K. Webb FRCS (auth.)

ISBN-10: 3642588247

ISBN-13: 9783642588242

ISBN-10: 3642637469

ISBN-13: 9783642637469

This publication has turn into important by reason of the quick growth of the surgeries and implants on hand for spinal surgical procedure in the "AO Group". we haven't tried to jot down an in-depth publication on spinal surgical procedure, yet one that might help the physician within the use of AO techniques and implants. We con­ sider the sensible classes held worldwide crucial for the educating of sound strategies in order that technical problems and terrible effects may be steer clear of­ ed for either the health practitioner and, particularly the sufferer. This booklet is a pragmatic guide and an overview of what's taught within the classes. it's meant to aid the younger spinal health care provider to appreciate the proper use of AO implants. The indi- tions given will relief the right kind use of every method. . It needs to be strongly emphasised that surgical procedure of the backbone is technically de­ manding. The concepts defined during this ebook should still basically be undertaken by way of surgeons who're educated and skilled in spinal surgical procedure. yes suggestions, specifically pedicle screw fIxation and cages, haven't but been totally authorized by way of the FDA within the usa. in spite of the fact that, in the course of the remainder of the area, using pedicle screws has turn into a typical approach for the backbone health care provider, because it has been proven to enhance fIxation suggestions and make allowance segmental correction of the backbone. using cages has turn into an increasing number of renowned, particularly as a device of minimally invasive spinal surgery.

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Example text

The degree of instability and prognosthe instabilities already present in types A or B. In- tic aspects indicate the treatment to be applied. stability in torque is caused by the patterns of the The classification is comprehensive as almost any vertebral fracture itself as well as by avulsion of soft- injury can be itemized according to easily recogniztissue attachments (e. , disk, ligaments, muscles) able and consistent radiographic and clinical findand fractures of bony structures (e. , transverse ings.

Though any reduction of resistance against primary forces may be termed 'instability; a more precise identification of the type and degree of instability is necessary for the treatment modalities. There are injuries which are clearly stable and those which are clearly unstable when subject to forces of any direction and magnitude. Between these two extremes, there are many injuries of varying instability with flowing transitions regarding the quality and magnitude of the instability. ' For example, most type A injuries are unstable in compression but stable in distraction, shear, and torque.

Ranking of the injuries was primarily determined by the degree of instability. Prognostic aspects were taken into consideration as far as possible. 2 Type B injuries: groups, subgroups, and specifications Type B. 2 With type A fracture of the vertebral body 1 Flexion-subluxation + type A fracture 2 Antirior dislocation + type A fracture 3 Flexion-subluxation/anterior dislocation with fracture of the articular processes + type A fracture text refers to the two-column concept as described by Whitesides [46].

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AO ASIF Principles in Spine Surgery by Prof. Dr. Max Aebi FRCS(C), John S. Thalgott M.D., John K. Webb FRCS (auth.)


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