Hm 12358 doc -p10 mod - Stryker

1 EXTERN AL FIXATION SYSTEM Compact CompactIn 1938, Raoul Hoffmann, knownworldwide as the father of ExternalFixation, invented the concept ofUniversal Ball Joints with ConnectingRods and Strong Pin of the distal radius are common in adults and remaina challenge for the orthopedic surgeon. The advent of externalfixation as a technique for distal radius fracture managementhas significantly improved treatment results and externalfixation is now considered a routine tool in the treatment ofcomplex wrist fixation has existed as a method of fracturemanagement since the 19th century, however it was not untilRaoul Hoffmann of Geneva introduced the concept of closedfracture fragment manipulation using universal clamps andpercutaneous pins that the technique became popular.

2 Withthe introduction of ligamentotaxis or distraction ofcapsulo-ligamentous structures, the technique ofapplying external fixation spread to the wrist,allowing for an indirect reduction offracture II Compact Hoffmann II Compact Stryker Howmedica was among the pioneers of external fixationin the wrist with the introduction of the Hoffmann C-Series wristand upper extremity fixator. With the advent of new technologiesand superior surgical materials, Stryker Howmedica has builtupon the success of the original Hoffmann fixator byintroducing the Hoffmann II External Fixation the need for further enhanced upper extremitysurgery, Stryker Howmedica has now extended the Hoffmann IIExternal Fixation System by introducing the Hoffmann IICompact, specifically designed for distal radius Hoffmann II Compact Upper extremity fixator has beendesigned to complement the anatomy of the distal radius byallowing independent movement of its clamps in multiple of the main goals has been to reduce complexity of framedesign.

3 While providing total versatility and ease of use. TheHoffmann II Compact can be used with single or multi-pinclamps in a variety of frame configurations according to surgeonpreference and fracture needs. Intra-articular fractures withradio-carpal involvement can be treated with a bridging or trans-articular construction, whereas, extra-articular fractures can betreated with a non-bridging or peri-articular frame. The HoffmannII Compact is truly designed to meet the needs of the patient andthe unilateral bridging frameStandard bi-lateral bridging frameIndependent pin placement framePeri-articular fixation frameRadial osteotomy frameFoot fixation framePediatric fixation frameThis publication sets forth detailed recommended procedures for using Stryker Howmedicadevices and instruments.

4 It offers guidance that you should heed, but, as with any such technicalguide, each surgeon must consider the particular needs of each patient and make appropriateadjustments when and as Hoffmann II Compact System maintains the advantagesof the Hoffmann C-Series, while incorporating new advancedtechnology, ease of use, and versatility. Anatomicalreconstruction and restoration of skeletal length are simplifieddue to the independent adjustments of the fragment translationRadial/ulnar deviationRotational alignmentLength (compression/distraction can be added by usingthe compression/distraction rod)The system is based on a spring-loaded, snap-fitmechanismwhich improves handling and reduces intra-operative timeThe use of high performance plasticsand carbon fibreprovides excellent fracture visualizationand compactnon-bulky framesThe Hoffmann II Compact is compatible with theHoffmann C-Series, the Yellow Monotube Triax , theMini Hoffmann and the Hoffmann IIVariable pin placementoptions allow unlimited frameconfigurations with a few simple components Color-coded for simplified hospital inventorymanagementEasy access top locking mechanismDesigned with simple.

5 Effective instrumentationSingle pin placementMultiple/parallel pin placementRadiolucentErgonomically compact frame designSingle instrument for adjustments Hoffmann II Compact The Hoffmann II Compact System consists of the following components:Pin ClampAssembly30 Angled PostStraight PostPeri-Articular Pin Clamp Rod-to-Rod Coupling 5/5mm DiameterRod-to-Rod Coupling 8/5mm DiameterPin-to-Rod Coupling 3-4/5mm DiameterStainless Steel Rods 5mm DiameterCarbon Fibre Rods 5mm DiameterA Transition in Time CompactCurved Rod Semi-Circular (Small)Curved Rod Semi-Circular (Medium)Compression/Distraction RodCompression/Distraction Rod-to-Rod CouplingSelf-Tapping Apex Pins 3/4mm DiameterSelf-Drilling/Self-Tapping Pins 3/4mm Diameter3 CompactOne of the main objectives of the Hoffmann II Compact was toaccommodate various surgical philosophies and variousfracture patterns.

6 In order to accomplish these objectives,freedom of single pin placement was considered to be anessential component of the Hoffmann II Compact System. In many cases, frame design is dictated by soft tissue injuriesand the fracture pattern itself. This implies a system that willallow a simple yet systematic approach to frame its integrated snap-fit mechanism the Pin-to-Rod Couplingaccomplishes just modular technique of single pin placement allows completefreedom of pin placement and fracture reduction, whileguaranteeing ease of assembly and full to accept 3/4mm Apex pinsUnlimited frame design from complex to simpleFlexible frame design that can accommodate anatomical and/orindication needsWide application possibilities.

7 Neutral, flexion, ulnar deviation, orpronationVersatile post-operative adjustments in various planesConnects pins to 5mm rods in carbon fibre or stainless steelRadially serrated tooth design provides excellent locking androtational stabilityIntegrated snap-fit mechanism allows easy assembly and temporaryfixation during reduction manoeuvresEasy access top locking via a 5mm square head screwPin-to-Rod Coupling4 CompactA modern fixator needs to incorporate excellent stability,component flexibility and ease of use. The Hoffmann II Compact Rod-to-Rod Coupling reliably connects 5mm rods to 5mm rods,in either carbon fibre or stainless steel. The coupling isespecially designed to connect laterally onto the rods andensures a firm grip through the incorporated connection to the rods facilitates rapid constructionof theframeRadially serrated tooth design between the locking jaws providesexcellent locking controlEasy access top locking mechanism via a 5mm square head screwColor-coded components for improved intra-operative and post-operative inventory managementIntegrated spring-loaded.

8 Snap-fit mechanismensures a non-slipconnection to the rod or postIndependent reduction possibilities in three planeswith ball joint typemobilityDesigned for use with 5mm carbon fibre or stainless steel rodsUnrestricted access to soft tissuesLightweight materialsLow profileSingle instrument for adjustmentsRod-to-Rod Coupling5 CompactStability is the essence of successful external fixation. One ofthe requirements of stability is adequate pin diameter and pinspacing. The Hoffmann II Compact is based on a provenmethod of fracture fixation that is versatile in its usage, andprovides parallel pin placement possibilities, while allowing thereduction of the fracture after pin placement.

9 Its design providescompact non-bulky frame solutions through the use of bi-lateralpost connections. Multiple pin spacing possibilities are providedwhen superior frame stability is hole parallel pin placement allowing the use of 3/4 mm Apex can be placed at 40 -60 dorsal to the frontal/radial planeensuring good visibility of the fracture siteEasy access pin locking mechanism via two 5mm square headscrewsBi-lateral star shaped connectionson either side of the pin clampallow 30 angled posts to be placed in 12 angular positionsSystem holds fracture in rigid alignmentand reduces chances of wristshortening or residual ulnar or radial tiltPost-operative corrections can be made for proper anatomicalpositioning or different degrees of

10 Displacement while the device is inplaceSpecially designed reduction handles allow easy manipulation of thepin clamp intra-operatively, ensuring easy reduction maneuvers inseveral independent planesSingle instrument for adjustmentsStraight/30 Curved PostsThe Hoffmann IIPosts have been specifically developed to allow intra-operative flexibility. The system offers a straight or 30 curved postenabling compact and versatile frame anti-rotational star shaped design 12 angular positionsSafety ring preventing slippage from the pin clampStraight or 30 curved designIntegrated stop mechanism in the pin clampMulti-pin Clamp6 CompactIn 1929, L. Ombr danne of Paris, France introduced the conceptof external fixation in fractures of the distal radius .