Hoffmann II Micro External Fixation System. Indications for the Hand

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1 Hoffmann II Micro External Fixation System Indications for the Hand

2 Features & Benefits The instrumentation is Simple and User-Friendly, and the system is Color Coded, so there is no lost time or confusion in the O.R. A variety of frames can be anatomically built with only 4 basic components which are based on the patented Hoffmann II Click Mechanism offering surgeons quick and easy solutions. 2.0mm and 1.65mm Self-Drilling Self-Tapping Apex Pins allow pin insertion without pre-drilling which will Save Time in O.R. This system is compatible with the Hoffmann II Compact System giving the surgeon Complete Solutions for the Hand, Wrist, and Forearm. 2

3 Features & Benefits Low Profile and Light Weight frame assemblies offer added comfort to the patient. The system is designed to facilitate fracture alignment and Reduction After Frame Assembly offering the surgeon more Freedom and Flexibility when building the frame. The system offers Independent Pin Placement to adapt to the anatomy which is needed to address complex fractures and severe soft-tissue damage. Post-operative Corrections can easily be made while the frame is in place to insure proper anatomical positioning throughout the healing process. 3

4 Introduction In 1938, Raoul Hoffmann, a Swiss surgeon from Geneva, Switzerland, designed a revolutionary External Fixation System. The basic features of this system were its modular design and the ability to reduce fractures or to make post operative corrections to the alignment of fragments in three planes with the frame in situ. The Original Hoffmann System underwent considerable design improvements over the years. Then in the late 90 s, a group of renowned design surgeons 1 and Stryker engineers developed the innovative Hoffmann II and Hoffmann II Compact Systems. These systems signified a giant step forward in the treatment of bone fractures with modular external fixation frames. Indeed, thanks to the light weight and non bulky components, the Hoffmann II Systems provide surgeons an unlimited versatility, simplicity, and an unequaled ease of use. The Hoffmann II Micro System capitalizes on the experience acquired during several decades with the original Hoffmann System and with the Hoffmann II and Hoffmann II Compact Systems. It is made of stainless steel and carbon composite materials to provide optimal low profile high resistance features, and it has been designed to answer the growing needs of small bone injuries by ensuring ease of use, versatility and patient comfort. 1 Dr. Gernot Asche, Andy Burgess M.D., Prof. Franz Burny, Mr. Charles M. Court-Brown, Prof. Erkki O. Karaharju, Loren Latta Ph.D., Prof. David Seligson M.D., Dr. Gregory Zych M.D. 4

5 Indications & Contraindications Relative Indications The Hoffmann II Micro System is indicated for hand fractures. It is particularly suited for the following indications: - Articular fractures - Comminuted Fractures - Severe open fractures (Grade 3) - Rolando fractures - Non unions and delayed unions - Fractures associated with infection - Acute Corrective Osteotomies - Bennett s fractures - Burns and Contractures - Pathologic fractures - Small Joint Arthrodesis Relative Contraindications - Patients with a compromised immune system. - Non compliant patients who would not be able to ensure proper pin care. - Pre-existing internal fixation that prohibits proper pin placement - Bone pathology precluding pin fixation Hoffmann II Micro Standard Frame Guide Due to the versatility of the Hoffmann II Micro System, there is a virtually unlimited number of frame constructs. The surgeon has the choice to make any frame that will best heal the fracture. The following are the standard frames which are explained in detail in the Hoffmann II Micro Technical Guide - Mid-Shaft Fracture of the Proximal Phalanx of the Index Finger - Metaphaseal Fracture of the Proximal Phalanx of the Index Finger - Inter-Articular Fracture of the Fifth Metacarpal with severe soft-tissue damage. 5

6 Related Stryker Products Hoffmann II Micro Lengthener Based on the unique Hoffmann II Micro System for fracture management, Stryker has developed the Hoffmann II Micro Lengthener for metacarpal or phalangeal lengthening. The lengthener offers the same versatility and ease-of-use which makes the Hoffmann II Micro system a leader in External Fixation for the Hand Hoffmann II Compact The Hoffmann II Compact External Fixation System gives the surgeon the ability to treat a variety of fractures of the wrist, forearm, and foot. This low-profile, modular fixator easily adapts to the patient s anatomy and soft tissues. For more details, contact your local Stryker Representative and ask for the Hoffmann II Compact Brochure ( ). The VariAx Distal Radius Plating System The VariAx Distal Radius Plating System represents the Next Generation of Bone Fixation for your Distal Radius Fracture Needs. It is designed to offer the most comprehensive selection of plates, screws, pegs and unique instrumentation necessary to optimally maintain the stability of the distal radius lesion, while providing your surgical staff a user-friendly module layout. 6

7 Related Stryker Products Stryker Hand Plating System The Stryker Hand Plating System is a truly comprehensive system which offers you the locking and non-locking options necessary to treat a full range of hand and wrist fractures which present daily. HydroSet Injectable HA Bone Substitute Fracture gaps are often seen in comminuted Distal Radius fractures. Some surgeons prefer to use bone substitutes to fill these gaps. Stryker offers an innovative HA Bone Substitute with HydroSet. The injectable self-setting calcium phosphate material allows the surgeon to fill bone voids or gaps of the skeletal system (i.e., extremities, craniofacial, spine, and pelvis). These defects may be surgically created or osseous defects created from traumatic injury to the bone. HydroSet is delivered in 3, 5, 10, or 15cc quantities. 3cc and 5cc are normally suitable for voids in the Distal Radius. 7

8 Ordering Information - Implants Couplings and Clamps Description Diameter Rod to Rod Coupling / Pin to Rod Coupling 1.65mm 2mm / Rod to Rod Coupling 5mm / Multi-Pin Clamp Multi-Pin Clamp Connecting Rods Description Diameter Total Length mm mm mm mm mm mm mm mm mm mm Warning: Bone Screws referenced in this material are not approved for screw attachment or fixation to the posterior elements (pedicles) of the cervical, thoracic or lumbar spine mm 90mm 120mm 150mm 8

9 Ordering Information - Implants 2mm Self Drilling / Self Tapping Apex Half-Pins Shaft Diameter Total Length Thread Length mm 2mm 45mm 45mm 12mm 20mm 1.65mm Self Drilling / Self Tapping Apex Half-Pins Thread/Shaft Diameter Total Length Thread Length /2mm 1.65/2mm 45mm 45mm 12mm 20mm 2mm Blunt Apex Half-Pins Shaft Diameter Total Length Thread Length mm 2mm 36mm 45mm 15mm 20mm K-Wires Description Diameter Total Length K-Wire 1.0mm 150mm K-Wire 1.2mm 150mm K-Wire 1.4mm 150mm K-Wire 1.6mm 150mm 9

10 Ordering Information - Instruments Description Drill / Pin Insertion Guide mm Nut Wrench mm/1.65mm Pin Driver mm Wrench / 4mm Pin Driver mm Spanner Wrench Storage Case Lid Storage Case Upper Insert Storage Case Lower Insert Storage Case Base 10

11 Notes 11

12 Stryker Trauma AG Bohnackerweg 1 CH-2545 Selzach Switzerland The information presented in this brochure is intended to demonstrate a Stryker product. Always refer to the package insert, product label and/or user instructions before using any Stryker product. Surgeons must always rely on their own clinical judgment when deciding which products and techniques to use with their patients. Products may not be available in all markets. Product availability is subject to the regulatory or medical practices that govern individual markets. Please contact your Stryker representative if you have questions about the availability of Stryker products in your area. Stryker Corporation or its subsidiary owns the registered trademark: Stryker, Hoffmann, Apex Stryker Corporation or its subsidiary owns, uses or has applied for the following trademarks: Compact, HydroSet, VariAx Literature Number: LOT C5007 Copyright 2007 Stryker