Veterinary Orthopedics - Biomechanical notes

DISPONIBILE ANCHE IN LINGUA ITALIANA.

VERSIÓN ESPAÑOLA MUY PRONTO.


The author intends to fully empower the veterinary orthopedic surgeon, enabling the orthopedist to use Fixin® angular stable internal fixators with conical fit on cats and dogs.

The deployment rules of this extraordinary synthesis medium have been derived from proprietary case histories (collected since June 2005), clinical records kept by several colleagues and the study of the reset fracture system under mechanics scholars.

Product of the dialog between veterinary orthopedists and mechanical engineers, this book contains over 230 illustrations, 140 full case histories with 360 film clips and more than 3,500 X-rays, analyzing all aspects of mechanical fixation.


Table of Contents:


Fixin® system

System components.

Manufacturing details and functions.

Note on materials.

Load-stretch diagram.



Conical fit: Theory and praxis

Forces as vectors: The forces of friction.

Conical fit balance: A graphic solution.

Conical fit balance: An analytical solution.

Field experience.

Static and dynamic friction.


Mechanical resistance of blocked implants

Screw stresses.

Support stresses.

Moment of resistance to flexion and internal strains.

Thrusts.

Buckling load.

Distance Between Centers [DBC].

Implant fatigue.

Monocortical - Bicortical anchorage.

Screw pull out: The leverage effect.


Application remarks

Load and micromovement effects on the fracture rima.

Correct implant elasticity.

Gap effects on the screws.

Effects of bone flexion on the implant.

Effects of implant flexion on the bone: The mechanically induced lysis.

Competent and incompetent bones.

Fracture rima as a bearing base.

Correct support length.

Correct screw number.

Concerns about bone reabsorption.

Correct screw placement.

Angular stable screws within a fracture focus.

How to make competent an incompetent bone.


Case studies

Lower jaw fractures.

Humerus fractures.

Radioulnar fractures.

Pelvis fractures.

Femur fractures.

Tibia fractures.

Shoulder arthrodesis.

Elbow arthrodesis.

Carpus panarthrodesis.

Partial carpus arthrodesis.

Knee arthrodesis.

Tarsus panarthrodesis.

Partial tarsus arthrodesis.

TPLO.

DPO.

TPO.