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SYSTEM
THEEASYEasyHip Cemented CupsImplants, Instruments & Surgical Technique
GO German Orthopedic Implants GmbH Barkhausenweg 10 | 22339 Hamburg, Germanyinfo@go-implants.com | www.go-implants.com
EasyHip Cemented Cups
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Contents 01
EasyHip Cemented Cups
Contents
Surgical Technique02 Preoperative Planning03 Surgical Approaches
Implants07 EasyHip Cemented Cups, eccentric – UHMWPE08 EasyHip Cemented Cups HiROM – Crosslinked UHMWPE
Instruments09 Basic Instrument Set for EasyHip Cemented Cups10 Additional Instrument Set for EasyHip Cemented Cup/Cemented Cup HiROM11 Instrument Set for EasyHip Acetabular Reamer12 Additional Instruments
13 Accessories/Literature
14 Indications/Contraindications
Important Information
02 Surgical Technique
Preoperative Planning
To ensure the best possible treatment results, the appropriate implant should be selected during preoperative planning. The appropriate design of polyethylene acetabular cup should be selected on the basis of examination of the patient, X-rays and the special X-ray templates available. When considered in combination with an up-to-date plain X-ray of the pelvis, the X-ray templates are a practical aid when choosing the surgical intervention and the correct implant size.
The aim of preoperative planning is to establish the approximate size of the implant required and the optimal position in which to place it. Surgical complications should be avoided by means of careful planning.
Spacer lugs on the external profile ensure that a uniform thin cement coating is created between the acetabulum and the acetabular cup when the cup is pressed into the soft bone cement.
The meridian and latitudinal grooves ensure optimum interlocking of the acetabular cup with the bone cement.
Due to the special construction of the eccentric acetabular cup, the greatest material strength is positioned in the main load-bearing area of the hip joint when the marking point on the rim of the acetabular cup points in a cranial direction to 12:00. With an internal radius in the acetabular cup of over 180°, the head of the prosthesis spans a large area and the risk of luxation is therefore smaller than with flat acetabular cups.
It also results in a “snap fit” between the head of the prosthesis and the entrance to the acetabular cup.
Surgical Technique
Product Rationale
The choice depends on the surgeon‘s experience and his/her decision based on the individual situation.
The following approaches are usual: • antero-lateral – Watson Jones (A)
• direct lateral – Hardinge (B)
• postero-lateral – Moore (C)
Surgical Approaches
A: Watson Jones
B: Hardinge
C: Moore
EasyHip Cemented Cups
Surgical Technique 03
EasyHip Cemented Cups
04 Surgical Technique
Positioning of the PatientThe patient is positioned on his/her side.The dorsolateral approach is described here. Another approach can be chosen according to the surgeon’s experience.
Dislocation of the Femoral HeadThe femoral head is luxated by means of internal rotation and 90º flexion of the femur.
Dislocation of the Femoral HeadThe femoral head is luxated by means of internal rotation and 90º flexion of the femur.
EasyHip Cemented Cups
Surgical Technique 05
Reaming out the AcetabulumIn order to determine the size of the acetabular cup, it is recommended that a trial cup be inserted. Trial cups have the same external con-tours as the final implant components.
To create a cement coating of the required thickness a polyethylene cup should be selec-ted that is 1-2 sizes smaller than the trial cup size giving a snug fit.
Preparation of the Anchoring HolesAnchoring holes for bone cement are drilled primarily in the load-bearing zone of the acetabulum using the penetrating drill.
Reaming of the AcetabulumThe acetabulum is reamed in stages (2 mm at a time).
Exposure of the AcetabulumThe acetabulum is exposed after femoral head resection.
EasyHip Cemented Cups
06 Surgical Technique
45°
15°
ST
Due to the special construction of the eccentric acetabular cup, the greatest material strength is positioned in the main load-bearing area of the hip joint when the marking point on the rim of the acetabular cup points in a cranial direction to 12:00.
The UHMWPE Acetabular Cup in situWhile the cement hardens, the acetabular cup is held in position using the cup pusher. Its ball head prevents the transmission of the surgeon‘s movements to the implant.
Cementing of the Acetabular CupFollowing application of the cement, the cemented polyethylene acetabular cup is inserted into the prepared implant bed using the inserter positioner.The lever on the handle is pressed to the right and the polyethylene acetabular cup positioned on the applicator head. To lock the polyethylene cup, the handle is subsequently moved to the left. The cup is now firmly connected to the inserter positioner and can be placed into the cement bed.
To align the cemented polyethylene acetabular cup correctly, it is recommended that an alignment instrument with an alignment rod and pendulum be used.
By aligning the alignment rod at 90° to the body’s axis, a cup entry angle (inclination) of 45° can be achieved.
To achieve 15° anteversion, a positioning guide T with pendulum (S) is available. For patients in a supine position (T should be parallel to S). For patients in a lateral position, the inserter positioner must be moved 15° in a ventral direction.
Implants 07
Implants
EasyHip Cemented Cupeccentric, with snap fit
Material: UHMWPEX-ray marker: CoCrNiMoFe
Item no. Outer Ø mm Inner Ø mm
E16.1.00.0000 44 28
E16.1.00.0001 46 28
E16.1.00.0002 48 28
E16.1.00.0003 50 28
E16.1.00.0004 52 28
E16.1.00.0005 54 28
E16.1.00.0006 56 28
E16.1.00.0007 58 28
E16.1.00.0008 60 28
E16.1.00.0009 62 28
E16.1.00.0010 64 28
Inner Ø
Outer Ø
with snap fit
EasyHip Cemented Cups
08 Implants
EasyHip Cemented Cup HiROM
Material: Crosslinked UHMWPE X-ray marker: CoCrNiMoFe
Item no. Outer Ø mm Inner Ø mm
E21.1.00.0000 42 28E21.1.00.0001 44 28E21.1.00.0002 46 28E21.1.00.0003 48 28E21.1.00.0004 50 28E21.1.00.0005 52 28E21.1.00.0006 54 28E21.1.00.0007 56 28E21.1.00.0008 58 28E21.1.00.0009 60 28E21.1.00.0010 62 28E21.1.00.0011 64 28E21.1.00.0012 66 28E21.1.00.0013 68 28
Outer ØOuter Ø
Instruments 09
Basic Instrument Set for EasyHip Cemented Cups
Instruments
Item No. Basic Instrument Set for EasyHip Cemented CupsE16.2.00.0603 in sterilised container, 1 tray with storage rack, complete
E16.2.00.0666 Standard container N11, 575 x 275 x 100 mm (not illustrated)
E14.2.00.0177Inserter-Positioner for acetabular cups with fixation guide, 460 mm, diameter 32 mm
E16.2.00.0610 Hex screwdriver, size 1.5 mm, 180 mmE16.2.00.0611 Hex screwdriver for closure of the pinE16.2.00.0612 Positioning guide with pendulum for introducerE16.2.00.0613 orE16.2.00.0614
Penetrating drill, 3.5 mm, Hudson FittingPenetrating drill, 3.5 mm, AO Fitting
E16.2.00.0615 orE16.2.00.0616
Penetrating drill, 5.0 mm, Hudson FittingPenetrating drill, 5.0 mm, AO Fitting
E16.2.00.0617 Dismantling ring, diameter 32 mm
E16.2.00.0618 Tray, empty, 550 x 265 x 50 mmE14.2.00.0143 Inserter-Positioner for acetabular cups with fixation guide,
460 mm, Ø 28 mmE16.2.00.0621 Acetabular cup pusher, for 28 mm head ØE16.2.00.0622 Dismantling ring, Ø 28 mm
EasyHip Cemented Cups
10 Instruments
Additional Instrument Set for EasyHip Cemented Cup/Cemented Cup HiROM
Item no. Additional Instrument Set for EasyHip Cemented Cups/Cemented Cups HiROM
E16.2.00.0604 in standard container N11, 1 tray with storage rack, complete, 1 Set
E16.2.00.0666 Standard container N11, 575 x 275 x 100 mm (not illustrated)E16.2.00.0628 Tray, empty, 550 x 265 x 50 mm
EasyHip Cemented Cups and Cemented Cups HiROM Acetabular Trial CupsItem no. Outer Ø mm Item no. Outer Ø mmE16.2.00.0630* 38 E16.2.00.0638 54E16.2.00.0631* 40 E16.2.00.0639 56E16.2.00.0632 42 E16.2.00.0640 58E16.2.00.0633 44 E16.2.00.0641 60E16.2.00.0634 46 E16.2.00.0642 62E16.2.00.0635 48 E16.2.00.0643 64E16.2.00.0636 50 E16.2.00.0644 66E16.2.00.0637 52 E16.2.00.0645 68E16.2.00.0629 Acetabular cup applicator and trial cup handle
*On request
EasyHip Cemented Cups
Instruments 11
E16.2.00.0110 Instrument Set for EasyHip Acetabular Reamer
Item no. Instrument Set for Acetabular ReamersE16.2.00.0001 Instrument Tray, empty131-170/38 Acetabular Reamer Head, Reamer-Ø 38 mm131-170/40 Acetabular Reamer Head, Reamer-Ø 40 mm131-170/42 Acetabular Reamer Head, Reamer-Ø 42 mm131-170/44 Acetabular Reamer Head, Reamer-Ø 44 mm131-170/46 Acetabular Reamer Head, Reamer-Ø 46 mm131-170/48 Acetabular Reamer Head, Reamer-Ø 48 mm131-170/50 Acetabular Reamer Head, Reamer-Ø 50 mm131-170/52 Acetabular Reamer Head, Reamer-Ø 52 mm131-170/54 Acetabular Reamer Head, Reamer-Ø 54 mm131-170/56 Acetabular Reamer Head, Reamer-Ø 56 mm131-170/58 Acetabular Reamer Head, Reamer-Ø 58 mm131-170/60 Acetabular Reamer Head, Reamer-Ø 60 mm131-170/62 Acetabular Reamer Head, Reamer-Ø 62 mm131-171B Shaft with Handle for acetabular Reamer, 312 mm, Hudson Fitting131-171D Shaft with Handle for acetabular Reamer, 312 mm, AO Fitting*131-171/01 Handle for 131-171B or D
B D
Hudson AO
* Optional: not included in set configuration E16.2.00.0110
12 Instruments
Additional Instruments
Penetrating Drillwith depth stop, 150 mm
Item no. Drill Ø/mm Fitting
E16.2.00.0613 3,5 Hudson
E16.2.00.0614 3,5 AO
E16.2.00.0615 5,0 Hudson
E16.2.00.0616 5,0 AO
Acetabular Cup Pusherwith T-handle, 260 mmItem no. for Acetabular Cups
E16.2.00.0621 Inner Ø 28 mm
Item no. Replacement Heads
E16.2.00.0647 for E16.2.00.0621
E16.2.00.0648 T-handle only for cup pusher E16.2.00.0621
Additional Instruments
X-ray Templates for EasyHip Cemented Cup/Cemented Cup HiROM110% actual size
Item no. X-ray Template
E16.2.00.0048 for EasyHip Cemented Cups, head Ø 28 mm, 1 set of 2 sheets
E21.2.00.0101 for EasyHip Cemented Cups HiROM, head Ø 28 mm, 1 set of 2 sheets
Accessories/Literature 13
Instructions for Cleaning and Maintenance
Specific instructions for instruments are available on request from info@go-implants.com
Accessories/Literature
14 Indications/Contraindications
Indications/Contraindications
Indications/Contraindications EasyHip Cemented CupsGeneral Indications
Mobility-limiting diseases, fractures or defects which cannot be treated by conservative or osteosynthetic procedures
Indications
Primary and secondary coxarthrosis
Rheumatoid arthritis
Correction of functional deformities
Femoral neck fractures
Revision after implant loosening dependent on bone mass and quality
Contraindications
Acute and chronic infections, local and systemic insofar as they compromise the successful implanta-tion of a total hip prosthesis (preoperative microbiological analysis recommended)
Allergies to (implant) materials
Insufficient / inadequate bone mass- or quality, which prevents a stable anchorage of the prosthesis
Please note: These indications/contraindications refer to standard cases. The ultimate decision on wheth-er or not an implant is suitable for a patient must be made by the surgeon based on his/her individual analysis and his/her experience.
Important Information
Please note the following regarding the use of our implants:
1. Choosing the right implant is very important. The size and shape of the human bone determines the size and shape of the implant and also limits the load capacity. Implants are not designed to withstand unlimited physical stress. Demands should not exceed normal functional loads.
2. Correct handling of the implant is very important. Under no circumstances should the shape of a finished implant be altered, as this shortens its life span. Our implants must not be combined with implants from other manufacturers. The instruments indicated in the Surgical Technique must be used to ensure safe implantation of the components.
3. Implants must not be reused. Implants are supplied sterile and are intended for single use only. Used implants must not be used again.
4. After-treatment is also very important. The patient must be informed of the limitations of the implant. The load capacity of an implant cannot compare with that of healthy bone!
5. Unless otherwise indicated, implants are supplied in sterile packaging. Note the following conditions for storage of packaged implants:• Avoid extreme or sudden changes in temperature.• Sterile implants in their original, intact protective packaging may be stored in permanent buildings up until the
“Use by” date indicated on the packaging. • They must not be exposed to frost, dampness or direct sunlight, or mechanical damage.• Implants may be stored in their original packaging for up to 5 years after the date of manufacture. The “Use by”
date is indicated on the product label.• Do not use an implant if the packaging is damaged.
6. Traceability is important. Please use the documentation stickers provided to ensure traceability.
7. Further information on the material composition is available on request from the manufacturer.
Follow the instructions for use!
GO German Orthopedic Implants GmbH, Barkhausenweg 10, 22339 Hamburg, Germany
All content in this catalog, including text, pictures and data, is protected by law. Every instance of use, whether in part or in whole and which is not permitted by law, is subject to our prior consent. In particular, this applies to the reproduction, editing, translation, publishing, saving, processing, or passing on of content stored in databases or other electronic media and systems, in any manner or form. The information in the catalogs is solely intended to describe the products and does not constitute a guarantee.
The Surgical Technique described has been written to the best of our knowledge and belief, but it does not relieve the surgeon of his/her responsibility to duly consider the particularities of each individual case.
Important Information
GO German Orthopedic Implants GmbH Barkhausenweg 10 | 22339 Hamburg, Germanyinfo@go-implants.com | www.go-implants.com
© E-609_EasyHip Cemented Cups_Impl. Instr. OP_de_2020-06_001_S