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This publication is not intended for distribution in the USA.
Instruments and implantsapproved by the AO Foundation.
Surgical Technique
Schanz Screws and Steinmann Pins
Image intensifier control
This description alone does not provide sufficient background for direct use of DePuy Synthes products. Instruction by a surgeon experienced in handling these products is highly recommended.
Processing, Reprocessing, Care and MaintenanceFor general guidelines, function control and dismantling of multi-part instruments, as well as processing guidelines for implants, please contact your local sales representative or refer to:http://emea.depuysynthes.com/hcp/reprocessing-care-maintenanceFor general information about reprocessing, care and maintenance of Synthes reusable devices, instrument trays and cases, as well as processing of Synthes non-sterile implants, please consult the Important Information leaflet (SE_023827) or refer to: http://emea.depuysynthes.com/hcp/reprocessing-care-maintenance
Schanz Screws and Steinmann Pins Surgical Technique DePuy Synthes 1
Table of Contents
Introduction SELDRILL Schanz Screw 2
Self-tapping Schanz Screw 3
Hydroxyapatite-Coated Schanz Screw 4
Steinmann Pin 5
AO Principles 6
Intended Use, Indications and Contraindications 7
Surgical Technique Preoperative planning for all Schanz Screws and Steinmann Pins 8
Setting the Schanz Screws and Steinmann Pins 12
SELDRILL Schanz Screw 12
Self-tapping Schanz Screw 16
Steinmann Pins 21
Product Information The SELDRILL Schanz Screws 24
Schanz Screw (Self Tapping) 25
Hydroxyapatite-Coated Schanz Screws 26
Steinmann Pins 28
Bibliography 30
MRI Information 31
2 DePuy Synthes Schanz Screws and Steinmann Pins Surgical Technique
SELDRILL Schanz Screw
The SELDRILL Schanz Screw has been spe-cifically designed to optimise the bone/pin interface to reduce the occurrence of pin-tract related complications in external fixa-tion.
The unique design of the SELDRILL Schanz Screw reduces heat generation and inser-tion torque while improving pullout resis-tance in cortical and can cellous bone.
Radial preload
Core diameter increase of screw in the near cortex resulting in:
– enhanced anchorage in bone – sealing of intramedullary canal against
contamination – less bone resorption due to minimi-
sation of micromotion in screw-bone interface
Self-drilling and self-tapping
– Quick insertion – Precise geometry of bone thread – No need to search for pre-drilled pilot
hole
Materials
– Commercially pure titanium – Implant quality stainless steel
Standard vs self-drilling Schanz Screws1 (Axial insertion force 35N)
Standard 5.0 mm Schanz Screw (predrilled then inserted at 60 rpm)
5.0mm SELDRILL Schanz Screw (inserted at 400rpm)
Radial preload2–4
Microradiographs – after inserting smooth pins for 6 weeks
40
30
20
10
0Temperature increase (°C)
Insertion torque (Nm×10–1)
Cortical pullout (N×102)
Cancellous pullout (N×102)
Without radial preload: extensive bone resorption
With radial preload: minimal bone resorption
Precise geometry of bone thread
A
B
C
D
E
Schanz Screws and Steinmann Pins Surgical Technique DePuy Synthes 3
A Efficient drill bit and tap
– One-step insertion – Precise pilot hole and threads – Reduced heat generation – Decreased insertion torque
B Short, 2% core taper provides optimal radial preload
– Reduces micromotion and pin-tract infections
C Symmetrical thread profile
– Improved pullout strength in diaphyseal and metaphyseal bone
– Improved anchorage in cancellous bone due to increased thread length
D Smooth thread/shaft transition area
– Reduced stress riser
E Standard shaft diameters
– Compatible with Synthes external fixators
Self-tapping Schanz Screw
– With trocar tip – Diameters of 4.0 mm, 4.5 mm, 5.0 mm and 6.0 mm – Lengths of 60 mm, 80 mm, 100 mm, 125/130 mm,
150/160 mm 190/200 mm and 250 mm – Available in Stainless Steel or Titanium alloy (TAN) – Sterile and nonsterile-packaged
4 DePuy Synthes Schanz Screws and Steinmann Pins Surgical Technique
Hydroxyapatite Schanz Screw
– Threads are coated with hydroxyapatite (HA) to enhance fixation at the pin-bone interface and reduce the inci-dence of pin loosening
– Self-drilling or self-tapping versions – Diameters of 4.0 mm, 4.5 mm, 5.0 mm and 6.0 mm – Sterile-packaged
Hydroxyapatite-Coated Schanz Screw
Schanz Screws and Steinmann Pins Surgical Technique DePuy Synthes 5
Steinmann Pin with trocar tip – Available in Stainless Steel or Titanium alloy (TAN) – Diameters of 3.0 mm/3.5 mm/4.0 mm/4.5 mm and
5.0 mm – Lengths of 125 mm/ 150 mm /175 mm/ 200 mm/ – For some diameters length of 225 mm/250 mm/275 mm/
300 mm – Sterile and nonsterile-packaged
Steinmann Pin with middle thread and trocar tip – Available in Stainless Steel – Diameters of 4.5 mm and 5.0 mm – Lengths of 150 mm, 175 mm, 200 mm, 225 mm, 250 mm,
275 mm, 300 mm
Steinmann Pin with middle thread and trocar tip – Available in Titanium alloy (TAV) – Diameter of 5.0 mm – Lengths of 200 mm, 250 mm
Steinmann Pin with drill tip – Available in Stainless Steel – Diameters of 4.5 mm and 5.0 mm – Lengths of 125 mm, 150 mm, 175 mm, 200 mm, 225 mm,
250 mm, 275 mm, 300 mm – Sterile and nonsterile-packaged
Steinmann Pin
1
4
2
3
4_Priciples_03.pdf 1 05.07.12 12:08
4 DePuy Synthes Expert Lateral Femoral Nail Surgical Technique
AO PRINCIPLES
In 1958, the AO formulated four basic principles, which have become the guidelines for internal fixation1, 2.
1 Müller ME, M Allgöwer, R Schneider, H Willenegger. Manual of Internal Fixation. 3rd ed. Berlin Heidelberg New York: Springer. 1991.
2 Rüedi TP, RE Buckley, CG Moran. AO Principles of Fracture Management. 2nd ed. Stuttgart, New York: Thieme. 2007.
Anatomic reductionFracture reduction and fixation to restore anatomical relationships.
Early, active mobilizationEarly and safe mobilization and rehabilitation of the injured part and the patient as a whole.
Stable fixationFracture fixation providing abso-lute or relative stability, as required by the patient, the injury, and the personality of the fracture.
Preservation of blood supplyPreservation of the blood supply to soft tissues and bone by gentle reduction techniques and careful handling.
6 DePuy Synthes Schanz Screws and Steinmann Pins Surgical Technique
AO Principles
Stable fixationFracture fixation providing absolute or relative stability, as required by the patient, the injury, and the personality of the fracture.
Anatomic reductionFracture reduction and fixation to restore anatomical relationships.
Early, active mobilizationEarly and safe mobilization and rehabilitation of the injured part and the patient as a whole.
Preservation of blood supplyPreservation of the blood supply to soft tissues and bone by gentle reduction techniques and careful handling.
In 1958, the AO formulated four basic principles, which have become the guidelines for internal fixation1,2.
1 Müller ME, Allgöwer M, Schneider R, Willenegger H. Manual of Internal Fixation. 3rd ed. Berlin, Heidelberg, New York: Springer. 1991.
2 Rüedi TP, Buckley RE, Moran CG. AO Principles of Fracture Management. 2nd ed. Stuttgart, New York: Thieme. 2007.
Schanz Screws and Steinmann Pins Surgical Technique DePuy Synthes 7
Intended UseSynthes SELDRILL, Self-tapping, Hydroxyapatite-coated Schanz Screws and Steinmann Pins are intended for use with an external fixation system.
IndicationsSynthes SELDRILL, Self-tapping, Hydroxyapatite-coated Schanz Screws and Steinmann Pins are indicated for use with an external fixation system.
ContraindicationsNo specific contraindications.
Warnings: – Synthes hydroxyapatite (HA) coated Schanz Screws are
only available sterile packed. Do not attempt to re-sterilize.
– Synthes SELDRILL, Self-tapping, Hydroxyapatite-coated Schanz Screws and Steinmann Pins are not approved for screw attachment or fixation to the posterior elements (pedicles) of the cervical, thoracic, or lumbar spine.
Intended Use, Indications and Contraindications
60°
60°
90°
60°
8 DePuy Synthes Schanz Screws and Steinmann Pins Surgical Technique
Preoperative planning for all Schanz Screws and Steinmann Pins
All External Fixators must be affixed within the recom-mended zones described below.
The construction may not hinder the approach for a primary wound debridement or for a secondary operation. Skin transplants, sequestrectomies, bone grafting or a later osteosynthesis must be performable without restriction.
Surgical approach to the tibia
The soft tissue zone through which Schanz Screws can be inserted without damaging important structures (vessels, nerves, muscles and tendons) is anteromedial to the tibia. The angles of this safe zone vary.
If the lateral surface of the distal third of the tibia is avoided, damage to the anterior tibial artery can be avoided.
If the ventral zone of the distal tibia is avoided, interference with the tendons can also be avoided. In addition, this mini-mizes the probability of potential pin channel infection.
Zones for pin placement in tibia
Save zone
Schanz Screws and Steinmann Pins Surgical Technique DePuy Synthes 9
Surgical approach to the femur
A lateral approach to the femur within a 30° angle is recom-mended. A medial approach is also possible from a distal direction.
10 DePuy Synthes Schanz Screws and Steinmann Pins Surgical Technique
Surgical approach to the pelvis
There are two recommended options for pin placement of the external fixation assembly in the pelvis.
Supraacetabular pin placement Given the pronounced bone structure, the more technically difficult supraacetabular pin placement is preferred over that of the iliac crest. Proceeding from the superior anterior crest, the site of entry is approximately 4–6 cm in a caudal direc-tion, and 3–4 cm in a medial direction. When the patient is in a supine position, the alignment for drilling the screws is angled approximately 20° in a cranial direction and 30° in-ward.
Iliac crest pin placement
Precaution: To keep from damaging the femoral cutaneous nerve, avoid insertion up to 15 mm in a dorsal direction from the superior anterior iliac spine.
The orientation of the os ilium can be determined by palpa-tion with a finger or an additional instrument. The screws are then inserted delicately between the two laminae of the os ilium.
Preoperative planning for all Schanz Screws and Steinmann Pins
Schanz Screws and Steinmann Pins Surgical Technique DePuy Synthes 11
Approach to the humerus
Distally, a dorsal approach to the humerus is appropriate.
Precautions: When dealing with the humerus, primary con-sideration should be given to the radial and axillary nerves. Distally, a dorsal approach to the humerus is appropriate. Proximally, it is recommendable to introduce the Schanz Screws from a ventrolateral direction, caudal to the path of the axillary nerve.
12 DePuy Synthes Schanz Screws and Steinmann Pins Surgical Technique
The following steps will be explained with reference to a B 5.0 mm self-drilling, self-tapping (SELDRILL) Schanz Screw, and a B 5.0 mm Schanz Screw inserted in the diaphyseal re-gion of the tibia.
Precaution: Select the appropriate Schanz Screw (self- tapping, SELDRILL, Hydroxyapatite) or Steinmann pin for the patient’s bony anatomy.
SELDRILL Schanz Screw
The SELDRILL is a self-drilling, self-tapping Schanz Screw. The optimized radial preloading helps minimize the rate of pin infections.
Note: When the new adaptors for Schanz Screws are used, the SELDRILL Schanz Screws as well as all other self-drilling and all Steinmann pins do not have to be clamped in the drill chuck. The adapters are compatible with the universal chuck and AO/ASIF Quick Coupling.
Note: The thread of the SELDRILL Schanz Screws does not result in irritation of the soft tissue.
Setting the Schanz Screws and Steinmann Pins
SELDRILL Schanz Screw
Schanz Screws and Steinmann Pins Surgical Technique DePuy Synthes 13
1Set the drill sleeves on the bone
Required instruments
395.911 Handle for Drill Sleeve
395.921 Drill Sleeve 6.0/5.0 short, with thread
395.912 Drill Sleeve 5.0/3.5, short
394.181 Trocar B 3.5 mm, short
Insert the drill sleeve assembly through a stab incision and set it directly on the bone surface. Then remove the trocar B 3.5 mm and the drill sleeve 5.0/3.5.
Precautions: – Instruments and screws may have sharp edges or moving
joints that may pinch or tear user’s glove or skin. – Handle devices with care and dispose worn bone cutting
instruments in an approved sharps container.
14 DePuy Synthes Schanz Screws and Steinmann Pins Surgical Technique
Setting the Schanz Screws and Steinmann Pins
2Insert SELDRILL Schanz Screws
Required instruments
X94.782–788* SELDRILL Schanz Screws B 5.0 mm
395.911 Handle for Drill Sleeve
395.921 Drill Sleeve 6.0/5.0 short, with thread
393.103 Adapter for SELDRILL Schanz Screws B 5.0 mm
type-dependent Drill with attachment for AO/ASIF Quick Coupling
Insert the SELDRILL Schanz Screw in the B 5.0 mm adapter, and use the drill to screw it through the drill sleeve 6.0/5.0 until the drill tip is anchored in the distant cortical bone.
If it is difficult to determine whether the screw has entered the opposite side of the cortical bone, it is recommendable to check the screw’s penetration depth and position with the image intensifier.
After screwing in the SELDRILL Schanz Screw, remove the drill sleeve and the drill with the adapter.
Precautions: – The SELDRILL Schanz Screw has been developed to mini-
mize heat development. Nevertheless, slow insertion and additional cooling (for example with a Ringer solution) are recommended.
– The tip of the SELDRILL Schanz Screw should be embed-ded in the far cortex to effectively resist cantilever forces and to provide sufficient stability.
Note: Less experienced users are advised to use a hand drill when placing the SELDRILL Schanz Screw in the far cortex.
* X=2 Stainless Steel X=4 Titanium (TiCP)
The SELDRILL Schanz Screw should be embedded in the far cortex:
Schanz Screws and Steinmann Pins Surgical Technique DePuy Synthes 15
Alternative technique:
Required instruments
X94.782–788* SELDRILL Schanz Screws B 5.0 mm
395.911 Handle for Drill Sleeve
395.921 Drill Sleeve 6.0/5.0, short, with thread
395.912 Drill Sleeve 5.0/3.5, short
394.181 Trocar B 3.5 mm, short
393.103 Adapter for SELDRILL Schanz Screws B 5.0 mm
393.100 Universal Chuck with T-Handle
type-dependent Drill with attachment for AO/ASIF Quick Coupling
Insert the SELDRILL Schanz Screw B 5.0 mm in the adapter, and use the drill to screw it through the drill sleeve 6.0/5.0 into the near cortical bone.
Remove the drill and replace it with the universal drill chuck with the T-handle (393.100). The screw can now be deli-cately screwed manually into the middle of the distant cortical bone. It is not necessary to completely penetrate the distant cortical bone since anchoring the thread in the near cortical bone and sinking the drill tip in the distant cortical bone effectively absorbs bending force.
Remove the drill sleeve and the universal chuck with T-handle.
Precaution: Only when bones are osteoporotic does the SELDRILL Schanz Screw have to be screwed a bit further into the distant cortical bone, and it may even slightly penetrate through it since this can increase anchoring stability.
Note: A SELDRILL Schanz Screw can be turned back without loosening as the thread is not conical.
Use in the metaphyseal region
The individual surgical steps are the same as when the screws are used in the shaft area.
* X=2 Stainless Steel X=4 Titanium (TiCP)
16 DePuy Synthes Schanz Screws and Steinmann Pins Surgical Technique
Instead of self-drilling Schanz Screws (SELDRILL), self-tapping screws can also be used. In contrast to the SELDRILL Schanz Screws, self-tapping screws must be predrilled.
1Set the drill sleeve assembly on the bone
Required instruments
395.911 Handle for Drill Sleeve
395.921 Drill Sleeve 6.0/5.0 short, with thread
395.912 Drill Sleeve 5.0/3.5, short
394.181 Trocar B 3.5 mm, short
Insert the drill sleeve assembly through a stab incision and set it directly on the bone surface and remove the trocar B 3.5 mm.
Setting the Schanz Screws and Steinmann Pins
Self-tapping Schanz Screw
Schanz Screws and Steinmann Pins Surgical Technique DePuy Synthes 17
2Predrilling
Required instruments
310.370 Drill Bit B 3.5 mm, length 195/170 mm, 2-flute, for Quick Coupling
type-dependent Drill with attachment for AO/ASIF Quick Coupling
Drill through both sides of the cortical bone with the B 3.5 mm drill bit, then remove the drill sleeve 5.0/3.5.
18 DePuy Synthes Schanz Screws and Steinmann Pins Surgical Technique
Setting the Schanz Screws and Steinmann Pins
3Insert the self-tapping Schanz Screw
Required instruments
X94.520–570* Self-Tapping Schanz Screw
395.911 Handle for Drill Sleeve
395.921 Drill Sleeve 6.0/5.0 short, with thread
393.100 Universal Chuck with T-Handle
The Schanz Screw can now be screwed in through the drill sleeve 6.0/5.0. The tip must be anchored in the distant corti-cal bone to effectively absorb bending force.
Precaution: The tip of the Self-tapping Schanz Screw should be embed-ded in the far cortex to effectively resist cantilever forces and to provide sufficient stability.
* X=2 Stainless Steel X=4 Titanium Alloy (TAN)
Schanz Screws and Steinmann Pins Surgical Technique DePuy Synthes 19
Alternative technique using the length gauge
Alternately, the length of the required Schanz Screw can also be precisely checked using the length gauge.
Required instruments
395.911 Handle for Drill Sleeve
395.921 Drill Sleeve 6.0/5.0 short, with thread
393.780 Depth Gauge for Schanz Screws
393.100 Universal Chuck with T-Handle
After predrilling as described in step 2 on page 17, the length gauge is guided through the drill sleeve 6.0/5.0 and hooked in the distant cortical bone.
Then move the retaining disk to the height of the drill sleeve and lock it with the locking screw.
Remove the length gauge, and insert the tip of the Schanz Screw into the recess of the retaining disk. Slide the universal chuck over the smooth shaft of the Schanz Screw to the height of the tip of the length gauge, and tighten the chuck on the Schanz Screw. Determining the length in this manner will ensure that the screw will be firmly anchored in the distant cortical bone.
The Schanz Screw can now be screwed in through the drill sleeve 6.0/5.0 until the drill chuck stops on the drill sleeve.
Note: If the Schanz Screw is screwed in beyond this point, it will strip the thread due to the resistance of the drill sleeve.
20 DePuy Synthes Schanz Screws and Steinmann Pins Surgical Technique
Precautions: – Implant sites should be meticulously cared to avoid pin-
tract infection. Schanz Screws and Steinmann pins may be surrounded with antiseptic coated foam sponges in an effort to avoid infection. An implant-site care procedure should be reviewed with the patient.
– To minimize the risk of pin track infection the following points should be observed:a. Placement of Schanz Screws and Steinmann pins taking
anatomy into consideration (ligaments, nerves, arter-ies).
b. Slow insertion and/or cooling, particularly in dense, hard bone to avoid heat necrosis.
c. Release of skin tension at soft tissue entry point of implant.
Setting the Schanz Screws and Steinmann Pins
Schanz Screws and Steinmann Pins Surgical Technique DePuy Synthes 21
The following steps will be explained with reference to a symmetrical compression (generally required for arthrodesis and osteotomies) that is best generated using a bilateral frame construction with Steinmann pins.
Steinmann Pins
22 DePuy Synthes Schanz Screws and Steinmann Pins Surgical Technique
Steinmann Pins
Knee arthrodesis
Ankle arthrodesis
Bilateral frames for arthrodesis
Required instruments
X93.500– Steinmann Pin B 5.0 mm with trocar tipX93.590*
394.800– Carbon Fibre Rod B 11.0 mm394.870
390.008 Clamp, clip-on, self-holding
321.160 Combination Wrench B 11.0 mm
393.420 Protective Cap, for Schanz Screws and Steinmann Pins B 5.0 mm
393.760 Compressor, open
310.370 Drill Bit B 3.5 mm, length 195/170 mm, 2-flute, for Quick Coupling
The large external fixator enables effective compression by pretensioning the Steinmann pins in relation to each other. Maximum stability is attained by first untightening the rele-vant clamp nuts, then generating the desired compression using the open compressor, and then retightening the nuts.
* X=2 Stainless Steel X=4 Titanium Alloy (TAN)
Schanz Screws and Steinmann Pins Surgical Technique DePuy Synthes 23
Bilateral frames for Osteotomies
Required instruments
X93.500– Steinmann Pin B 5 mm with trocar tipX93.590*
394.800– Carbon Fibre Rod B 11.0 mm394.870
390.008 Clamp, clip-on, self-holding
321.160 Combination Wrench B 11.0 mm
393.420 Protective Cap, for Schanz Screws and Steinmann Pins B 5.0 mm
393.760 Compressor, open
310.370 Drill Bit B 3.5 mm, length 195/170 mm, 2-flute, for Quick Coupling
In the case of osteotomies of the proximal and distal tibia, inner fixation is generally preferred if there are no associated soft- tissue problems.
Compression osteotomies with a bilateral frame construction are supportive of the metaphysis of rapid bone healing.
* X=2 Stainless Steel X=4 Titanium Alloy (TAN)
Proximal tibia osteotomy
Distal tibia osteotomy
4.0/2.5 mm*, 4.0/3.0mm*
4.0 mm
5.0 mm
6.0 mm
4.0/2.5 mm*, 4.0/3.0 mm*
4.0 mm
5.0 mm
6.0 mm
24 DePuy Synthes Schanz Screws and Steinmann Pins Surgical Technique
Total Thread Item no.Item no. Diameter length length StainlessTitanium (mm) (mm) (mm) steel
494.769 4.0/2.5* 80 20 294.769
494.771 4.0/3.0* 80 20 294.771
494.772 4.0/3.0* 100 20 294.772
494.774 4.0 60 20 294.774
494.775 4.0 80 20 294.775
494.776 4.0 100 30 294.776
494.777 4.0 125 40 294.777
494.778 4.0 150 40 294.778
494.779 4.0 175 40 294.779
494.782 5.0 100 30 294.782
494.783 5.0 125 40 294.783
494.784 5.0 150 60 294.784
494.785 5.0 175 60 294.785
494.786 5.0 200 80 294.786
494.788 5.0 250 80 294.788
494.792 6.0 100 30 294.792
494.793 6.0 125 40 294.793
494.794 6.0 150 60 294.794
494.795 6.0 175 60 294.795
494.796 6.0 200 80 294.796
494.798 6.0 250 80 294.798
* Shaft/thread diameter. Shaft and thread diameters are the same for all other sizes listed. All SELLDRILL Schanz Screws are available non-sterile or sterile packed. Add suffix ”S“ to article number to order sterile product.
Product Information
The SELDRILL Schanz Screws
Pure titanium SELDRILL Schanz Screws
Stainless steel SELDRILL Schanz Screws
Schanz Screws and Steinmann Pins Surgical Technique DePuy Synthes 25
Schanz Screw (Self Tapping)
B (mm) Length (mm)
X94.300 4.0/3.0* 80/20
X94.430 4.0 60/25
X94.440 4.0 80/25
X94.445 4.0/2.5* 80/20
X94.450 4.0 100/25
X94.460 4.0 125/25
X94.520 5.0 100/50
X94.530 5.0 125/50
X94.540 5.0 150/50
X94.550 5.0 175/50
X94.560 5.0 200/50
X94.570 5.0 250/50
X94.650 6.0 100/50
X94.660 6.0 130/50
X94.670 6.0 160/50
X94.680 6.0 190/50
* Shaft/thread diameter Shaft and thread diameters are the same for all other sizes.
X=2 Stainless SteelX=4 Titanium Alloy (TAN)
All Schanz Screws Self-tapping are available non-sterile or sterile packed. Add suffix “S” to article number to order sterile product.
494.784SHA
294.784SHA
26 DePuy Synthes Schanz Screws and Steinmann Pins Surgical Technique
Product Information
Self-Drilling Schanz Screws, HA coating, Pure Titanium, sterile
B (mm) Length (mm)
494.784SHA 5.0 150
494.785SHA 5.0 175
494.786SHA 5.0 200
Self-Drilling Schanz Screws, HA coating, Stainless Steel, sterile
B (mm) Length (mm)
294.776SHA 4.0 100
294.777SHA 4.0 125
294.778SHA 4.0 150
294.779SHA 4.0 175
294.782SHA 5.0 100
294.783SHA 5.0 125
294.784SHA 5.0 150
294.785SHA 5.0 175
294.786SHA 5.0 200
294.788SHA 5.0 250
294.796SHA 6.0 200
Warning: Synthes Hydroxyapatite (HA) coated Schanz Screws are only available sterile packed. Do not attempt to re-sterilize.
Hydroxyapatite-Coated Schanz Screws
294.54SHA
Schanz Screws and Steinmann Pins Surgical Technique DePuy Synthes 27
Schanz Screws, HA coating, Stainless Steel,sterile
B (mm) Length (mm)
294.450SHA 4.0 100
294.460SHA 4.0 120
294.520SHA 5.0 100
294.530SHA 5.0 125
294.540SHA 5.0 150
294.550SHA 5.0 170
294.560SHA 5.0 200
294.570SHA 5.0 250
294.670SHA 6.0 160
294.680SHA 6.0 190
294.730SHA 4.5 125
294.740SHA 4.5 150
294.750SHA 4.5 175
294.760SHA 4.5 200
Warning: Synthes Hydroxyapatite (HA) coated Schanz Screws are only available sterile packed. Do not attempt to re-sterilize.
28 DePuy Synthes Schanz Screws and Steinmann Pins Surgical Technique
Product Information
Steinmann Pin with trocar tip Stainless Steel or Titanium Alloy (TAN)
B (mm) Length (mm)
X93.350 3.5 125
X93.360 3.5 150
X93.400 4.0 150
X93.410 4.0 175
X93.420 4.0 200
X93.440 4.5 125
X93.450 4.5 150
X93.460 4.5 175
X93.470 4.5 200
X93.480 4.5 250
X93.490 4.5 225
X93.500 5.0 150
X93.510 5.0 175
X93.520 5.0 200
X93.530 5.0 250
X93.540 5.0 300
X93.580 5.0 225
X93.590 5.0 275
X=2 Stainless SteelX=4 Titanium Alloy (TAN)
Steinmann Pin with middle thread (Stainless Steel)
B (mm) Length (mm)
293.640 5.0 150
293.680 4.5 175
293.690 5.0 175
293.730 4.5 200
293.740 5.0 200
293.790 5.0 225
293.840 5.0 250
293.890 5.0 275
293.940 5.0 300
Steinmann Pins
Schanz Screws and Steinmann Pins Surgical Technique DePuy Synthes 29
Steinmann Pin with ”middle“ thread (TAV)
B (mm) Length (mm)
493.740 5.0 200
493.840 5.0 250
Steinmann Pin with drill tip (Stainless Steel)
B (mm) Length (mm)
293.130 4.5 150
293.140 4.5 175
293.150 4.5 200
293.220 5.0 125
293.230 5.0 150
293.240 5.0 175
293.250 5.0 200
293.260 5.0 225
293.270 5.0 250
293.280 5.0 275
293.290 5.0 300
All Steinmann pins are available nonsterile or sterile packed. Add suffix ”S“ to article number to order sterile product.
For product information about fixation components for External Fixator (Clamps, Rods ,Adapters, Caps, Drill sleeves) please refer to the corresponding surgical technique:DSEM/TRM/0416/0651: Large and Medium External FixatorDSEM/TRM/0416/0652: Quadrilateral surface PelvicDSEM/TRM/0416/0653: Small External FixatorDSEM/TRM/0516/0675: Large Distractor TibiaDSEM/TRM/0516/0676 : External Distal Radius FixatorDSEM/TRM/0115/0292: Elbow Hinge FixatorDSEM/TRM/0714/0108: Mefisto External FixatorDSEM/TRM/0717/0113: Segment Transport Mefisto External FixatorDSEM/TRM/0717/0114: Hybrid Ring fixatorDSEM/TRM/0717/0136: The Distraction Osteogenesis Ring System
30 DePuy Synthes Schanz Screws and Steinmann Pins Surgical Technique
Bennek J (2000) The use of upper limb external fixation in paediatric trauma. Injury, Int J Care Injured 31, 21–26.
Gausepohl T, Koebke J, Pennig D, Hobrecker S, Mader K (2000) The anatomical base of unilateral external fixation in the upper limb. Injury, Int J Care Injured 31, 11–20.
Miner T, Carroll KL (2000) Outcomes of External Fixation of Pediatric Femoral Shaft Fractures. Journal of Pediatric Orthopaedics, 20:405-410.
Rüedi TP, Murphy WM (2000) AO Principles of Fracture Management. Thieme, Stuttgart, New York.
Ruland WO (2000) Is there a place for external fixation in humeral shaft fractures? Injury. Int. J. Care Injured 31, 27–34.
Kapukaya A, Subasi M, Necmioglu S, Arslan H, Kesemenli lC, Yildirim K (1998) Treatment of closed femoral diaphyseal fractures with external fixators in children. Arch Orthop Trauma Surg, 117: 387–389.
Hull JB, Bell MJ (1997) Modern Trends for External Fixation of Fractures in Children: A critical Review. Journal of Pediatric Orthopaedics, 6:103–109.
Gregory P, Pevny T, Teague D (1996) Early Complications with External Fixation of Pediatric Femoral Shaft Fractures. Journal of Orthopaedic Trauma, Vol 10, No 3, 191–198.
Buckley SL (1995) Technique of External Fixation of grossly unstable or open tibial shaft fractures in children. Operative Techniques in Orthopaedics, Vol 5, No 2 (April): 157-163.
Davis TJ, Topping RE, Blanco JS (1995) External Fixation of Pediatric Femoral Fractures. Clinical Orthopaedics and Related Research, No 318, 191–198.
Aronson J, Tursky EA (1992) External Fixation of Femur Fractures in Children. Journal of Pediatric Orthopaedics, 12: 157–163.
Gregory RJH, Cubison TCS, Pinder IM, Smith SR (1992) External Fixation of lower limb fractures in children. The Journal of Trauma, Vol 33, No 5, pp 691–693.
Heim D, Regazzoni P, Perren S (1992) Der Fixateur externe bei offenen Frakturen: Gegenwärtiger Stand seiner Anwend-ung. Injury, No 23, suppl. 2.
Regazzoni P (1989) Das Ilizarov-Konzept mit einem modu-laren Rohrfixateursystem. Operative Orthopädie und Trauma-tologie, No 21, 90–93.
Rüter A, Brutscher R (1988) Die Behandlung ausgedehnter Knochen defekte am Unterschenkel durch die Verschiebungs - osteotomie nach Ilizarov. Der Chirurg, 59, 357–359.
Alonso JE, Horowitz M (1987) Use of the AO/ASIF External Fixator in Children. Journal of Pediatric Orthopaedics, 7: 594–600
Schavan R. (1994) Mechanische Testung von Schanzschen Schrauben. Diplomarbeit, Aachen, Deutschland 1–92.
Biliouris T. L., Schneider E., Rahn B. A., Gasser B., Perren S. M. (1989) The Effect of Radial Preload on the Im-plant- Bone Interface: A Cadaveric Study. J Orthop Trauma 3(4):323–332.
Biliouris T. L., Bresina S. J., Rahn B. A., Perren S. M. (1990) Untersuchung des Effekts unterschiedlicher radialer Kom-pression bei der Insertion von Schanzschen Schrauben. Acta Med Austriaca Suppl 17(40): 34.
Biliouris T. L., Gasser B., Schneider E., Perren S. M. (1990) Die Auswirkung einer radialen Vorlast auf den Knochen bei Ver-wendung von Fixateur externe Nägel. Acta Med Austriaca Suppl 17(40): 27–28.
Bibliography
Schanz Screws and Steinmann Pins Surgical Technique DePuy Synthes 31
MRI Information
Non-clinical testing has been performed to assess Torque, Displacement and Image Artifacts according to ASTM F 2213-06, ASTM F 2052-06e1 and ASTM F 2119-07 and Radio-Frequency-(RF-)induced heating according to ASTM F 2182-11a.
These tests have not been done on the individual implants but on the entire external fixator construct.
Please refer to the surgical technique of the corresponding External Fixator system.
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Synthes GmbHEimattstrasse 34436 OberdorfSwitzerlandTel: +41 61 965 61 11Fax: +41 61 965 66 00www.depuysynthes.com
Not all products are currently available in all markets.
This publication is not intended for distribution in the USA.
All surgical techniques are available as PDF files at www.depuysynthes.com/ifu ©
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