Reduction Instruments Brochure - Stryker

Reduction Instruments 

Product and Instruction 

Guide

Contents 

This publication sets forth detailed 

recommended procedures for 

using Stryker Trauma devices and 

instruments. 

It offers guidance that you should 

heed, but, as with any such technical 

guide, each surgeon must consider the 

particular needs of each patient and 

make appropriate adjustments when 

and as required. A workshop training 

is required prior to first surgery. 

See package insert (V15013 and 

V15034) for a complete list of potential 

adverse effects, contraindictions, 

warnings and precautions. The 

surgeon must discuss all relevant 

risks, including the finite lifetime of 

the device, with the patient, when 

neccessary. 

Warning: 

All bone screws referenced in 

this document here are not 

approved for screw attachment or 

fixation to the posterior elements 

(pedicles) of the cervical, thoracic 

or lumbar spine. 

1. Introduction 

Page 

3 

2. Instruments 4 

Repositioning Forceps, 200mm 4 

Repositioning Forceps, 130mm 5 

Reduction Forceps with Serrated Jaws 6 

Bone Holding Forceps Self-Centering with Ball Spike 7 

Bone Holding Forceps Self-Centering with Swivel Head 8 

Mantis Tongs Forceps - The periarticular Clamp 9 

Asymmetrical Farabeuf Forceps 10 

Reduction Pin & Elastosil T-Handle medium, AO Fitting 

The Joystick Reduction 

11 

Straight Ball Spike AO Fitting and Spiked Disk 12 

Hohmann Retractor 13 

2 

Ordering Information – Instruments 14

Introduction 

Reduction and temporary fixation of 

fracture fragments are technically and 

mechanically one of the more difficult 

parts in Osteosynthesis procedures. 

Reduction is the act of restoring the 

correct position of the fragments. It 

is extremely important in intra- and 

peri-articular fractures. 

Perfect anatomical reduction reverses 

the mechanism of injury which 

created the fracture displacement 

during the injury. Logically, it calls 

for forces and moments in directions 

opposite to those which produced the 

fracture. 

In large bone reduction, traction and 

some basic angular and rotational 

corrections may be applied using a 

fracture table with the disadvantage 

that traction must be performed 

across at least one joint. 

3 

When external reduction is impossible 

or insufficient, then the reduction may 

need to be performed by ORIF with 

exposure of the fracture fragments. 

These fragments are manipulated 

using various forceps to achieve 

perfect restoration of the anatomy. 

The newly developed Basic Reduction 

Set is designed and equipped with 

instruments for the most common 

reduction techniques in traumatology. 

One instrument case contains a 

variety of common forceps and other 

instruments required for surgical 

reduction and temporary fixation. 

The Basic Reduction Set is part of the 

Stryker plate and screw family. 

The combination of simplicity and 

versatility can solve the surgeon’s daily 

challenges for quick and accurate 

surgical reduction.

Instruments 

Repositioning Forceps 

Pointed forceps are typically 

instruments used for direct fracture 

reduction. 

Using one Forceps 

In oblique diaphyseal fractures, one 

branch of the forceps is positioned on 

each main fragment. 

With some pressure and simultaneous 

rotation of the handles the bone is 

lengthened and the fragments are 

reduced. 

Using two Forceps 

Each fragment is held with a pointed 

reduction forceps. 

Lengthening is achieved by manual distraction 

while proper axial alignment 

can be controlled with the two forceps. 

Using one Forceps for flat bone 

surfaces 

The forceps can also be applied directly 

to flat bone surfaces or be used with 

shallow drill holes 

4 

Length 200mm


Repositioning Forceps 

These small pointed reduction forceps 

may be used for direct or indirect 

fracture reduction as they are more 

gentle to the periosteal sleeve. 

Small, undisplaced fragments 

Provisional fixation of small, 

undisplaced fragments with direct 

application of the forceps to the bone. 

Fracture reduction with plates 

Indirect fracture reduction with a plate. 

One branch of the forceps has a special 

tip to fit the K-Wire holes in small 

fragment plates. 

Length 130mm 

5


Reduction Forceps with Serrated Jaws 

The serrated jaws of this reduction 

forceps offer a safe grip on the bone for 

direct reduction of diaphyseal fractures. 

The forceps can also be used for 

indirect reduction of a fragment using 

a plate in an antiglide function. 

6 

Length 180mm or 

Length 245mm


Bone Holding Forceps Self-Centering with Ball Spike 

The ball spike fits into the oval holes in 

broad and narrow plates of the AxSOS 

and SPS Basic Fragment Set. The 

length of the spike has been designed 

to impinge on the bone surface after 

tightening the forceps, to prevent 

sliding of the plate and the bone 

fragment. 

A special self centering mechanism 

ensures an optimal position of the 

forceps. 

7 


Length 292mm


Bone Holding Forceps Self-Centering with Swivel Head 

The pivoting swivel head allows a 

precise positioning of the forceps in 

provisional plate fixation. The width 

of the head has been designed to fit 

the narrow basic fragment plates using 

forceps size 1 and the broad plates with 

size 3 respectively. 

8 

Size 1: Length 238mm 

or 

Size 3: Length 289mm


Mantis Tongs Forceps - The periarticular Clamp 

For “closed” indirect reduction of 

proximal tibial or distal femoral 

fractures, one or two points of 

the Mantis forceps can be applied 

percutaneously through stab incisions. 

The spiked disk can be used for 

increased surface contact. 

9 

Length 385mm


Asymmetrical Farabeuf Forceps 

The versatile Farabeuf forceps can be 

used to grasp and manipulate the iliac 

wing or as a reduction forceps with 

provisional screws of 3.5mm or 4.5mm 

diameter respectively. 

It can also provide direct grip on bone 

for the manipulation and reduction of 

segmented diaphyseal fractures. 

10 


Length 250mm


Reduction Pin & Elastosil T-Handle medium AO Fitting 

The Joystick Reduction 

Ø 4.5 x 150mm or 

Ø 5.0 x 180mm or 

Ø 6.0 x 180mm 

The insertion of Schanz Screws 

(Reduction Pins) allows manipulation 

of bone fragments with or without a 

direct view. The technique is mainly 

used in articular fractures or hardly 

reducible large bone fragments. 

11


Straight Ball Spike AO Fitting and Spiked Disk 

These reduction instruments are used 

as a pusher with pointed ball tip to 

reduce bone fragments. To distribute 

the reduction forces over a increased 

area, the spiked disk can be clipped 

onto the ball tip to increase surface 

contact. 

12


Hohmann Retractor 

The Hohmann Retractors are part of 

the basic soft tissue instruments and 

mainly used to retract muscle or other 

soft tissues from the surronding of the 

bone without injuring or tearing any 

soft tissues. 

In cortical bone, a small-tipped 

Hohmann retractor can be used as a 

lever to achieve reduction. The tip of 

the retractor is placed between the two 

cortices of a diaphyseal fracture. It is 

then turned through 180° to engage 

the cortex of the opposite fragment. 

With a bending force applied by the 

retractor, the two cortices can be both 

opposed and realigned, allowing gentle 

reduction of the fracture. 

13 

6mm, 8mm, 18mm, 

22mm or 43mm

Ordering Information - Instruments 

Reduction Forceps 

14 

REF 

702926 

702927 

702941 

702940 

702937 

702939 

702945 

702946 

702936 

702928 

702929 

Description 

Repositioning Forceps, Length 130mm 

Repositioning Forceps, Length 200mm 

Reduction Forceps with Serrated Jaws, Length 180mm 

Reduction Forceps with Serrated Jaws, Length 245mm 

Bone holding Forceps Self-Centering with Ball Spike, Length 243mm 

Bone holding Forceps Self-Centering with Ball Spike, Length 292mm 

Bone holding Forceps Self-Centering with Swivel Head, Length 238mm 

(size 1) 

Bone holding Forceps Self-Centering with Swivel Head, Length 289mm 

(size 3) 

Mantis Tongs Forceps, Length 385mm 

Asymmetrical Farabeuf Forceps, Length 190mm 

Asymmetrical Farabeuf Forceps, Length 250mm 

Recommended 

Set content 

2 

2 

1 

1 

1 

1 

1 

1 

1 

1 

1

Ordering Information - Instruments 

Reduction Pins, Spikes, Hohmann Retractor and Tray 

REF Description 

390082 

390084 

390087 

702430 

702912 

702923 

700664 

700651 

700652 

700657 

700653 

902989 

Reduction Pin, AO Fitting, diameter 4.5 x 150mm 



Elastosil T-Handle medium, AO Coupling 

Straight Ball Spike, AO Fitting 

Spiked Disk 

Hohmann Retractor, 6mm 





Instrument Metal Tray 

15 

Recommended 

Set content 

2 

2 

2 

1 

1 

4 

1 

1 

1 

1 

1 

1

This document is intended solely for the use of healthcare professionals. A surgeon must always rely on his or her own 

professional clinical judgment when deciding whether to use a particular product when treating a particular patient. Stryker 

does not dispense medical advice and recommends that surgeons be trained in the use of any particular product before 

using it in surgery. 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 including the instructions for Cleaning and Sterilization (if 

applicable) before using any Stryker products. 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 divisions or other corporate affiliated entities own, use or have applied for the following trademarks 

or service marks: Stryker, AxSOS, SPS, Orthinox, Gamma3, One Shot Device, Mantis Tongs, Farabeuf, Hohmann 

and Bixcut. 

All other trademarks are trademarks of their respective owners or holders. 

The products listed above are CE marked. 

Literature Number : 982346 

LOT A2609 

Copyright © 2009 Stryker 

Stryker Trauma AG 

Bohnackerweg 1 

CH - 2545 Selzach 

Switzerland 

www.osteosynthesis.stryker.com

Reduction Instruments Brochure - Stryker

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