Chapter 7 - Veterinary Instrumentation

www.vetinst.comTRAUMA IMPLANTS & INSTRUMENTS 7Elbow Arthrodesis PlatesPartial Carpal Arthrodesis PlatesIMPROVEDDESIGN110°Severe DJD in the elbow is difficult to manage. Despite recent advances inelbow replacement outcomes are still far from ideal. Even when pain free,dogs rarely have a normal gait.Where funds are limited elbow arthrodesis is a realistic option. The result isa pain free limb albeit with an abnormal gait.Contouring standard plates to perform an elbow arthrodesis is very difficultand usually leaves empty plate holes vulnerable to fatigue failure.VI’s Elbow Arthrodesis Plates are hybrid in nature spanning humerus andulna. The Plate is placed medially.ELBOW ARTHRODESIS PLATES152950 Elbow Arthrodesis Plate 3.5/2.7 Right £145.00152951 Elbow Arthrodesis Plate 3.5/2.7 Left £145.00Forelimb Salvage PlateThis is normal!!Thanks to AlessandroPiras for the photoPhoto: Simon RochInjuries around the carpus may be so severe that reconstruction is notpossible. When the distal radius is involved a simple pancarpal arthrodesismay not be enough. The forelimb salvage plate is designed for suchinjuries. The length and screw positions allow some reconstruction of thedistal radius together with arthrodesis of the carpus.With no contouring the plate gives a five degree angle to the carpus.Plate profile on page 395.FORELIMB SALVAGE PLATE 1.5/2.0MM152910 Forelimb Salvage Plate 1.5/2.0mm £115.00Where instability lies in the intercarpal or carpometacarpal joints and theradiocarpal joint is undamaged, partial carpal arthrodesis offers anoutcome with a relatively normal range of movement.The problem is that the normal radiocarpal joint is capable of such adegree of extension that the distal radius tends to impinge on any implantplaced onto the radial carpal bone. The image above shows a greyhoundin full carpal extension illustrating the point very well. VI Partial CarpalArthrodesis Plates have been engineered to have an extremely low profile.Additionally the proximal screw holes are very close to the proximal borderof the plate thereby minimising the implant profile on the radial carpalbone. Plates with a thicker profile must be removed to avoid pain onextension.The proximal plate is precontoured for best possible fit and to allow bestposition and angles of screws.The largest plate accepts 2.7 and 3.5mm screws. Using 3.5 screws asmaller degree of screw angulation is possible. The medium plate takes2.7, 2.4 and 2.0 screws. The smallest plate takes 1.5 and 2.0mm screwsSee page 395 for profiles.Our TTO/ TWO plates have also beenused successfully for partial carpalarthrodesis. See page 393 for actualsize profilesPARTIAL CARPAL ARTHRODESIS PLATE152930 Partial Carpal Arthrodesis Plate 2.7/3.5mm 65mm £55.00152931 Partial Carpal Arthrodesis Plate 2.0/2.4/2.7mm 50mm £60.00152932 Partial Carpal Arthrodesis Plate 1.5/2.0mm £65.00201