CRANIOS REINFORCED BONE VOID FILLER
Transcript of CRANIOS REINFORCED BONE VOID FILLER
* Toughness is defined as a measure of a material’s resistance to fracture when stressed. Data on file with DePuy Synthes Companies, mechanical test number FRN test 132.
CRANIOS REINFORCED® Bone Void Filler is a biocompatible, self-setting calcium phosphate cement intended to fill defects in the restoration or augmentation of the cranial skeleton.
It contains reinforcing fibers that impart an increase in toughness* to reduce crack propagation during the setting process.
CRANIOS REINFORCED Bone Void Filler also incorporates a sodium hyaluronate solution to enhance viscosity, and improve handling and injection properties.
When the cement is fully cured, the composition closely approximates the mineral phase of bone. It is gradually resorbed and replaced with bone during the healing process.
CRANIOS REINFORCED Bone Void Filler contains reinforcing fibers that impart an increase in toughness* to reduce crack propagation during the setting process.
INTRODUCTION
PP DePuy Synthes Companies Name of Product Surgical Technique
1 DePuy Synthes Companies CRANIOS REINFORCED® Pone Void Filler Technical Monograph
Burr hole
Cranial defect
Temporal bone augmentation
Orbital rimSuboccipital cranioplasty
IndicationsCRANIOS REINFORCED Fast Set Putty and CRANIOS REINFORCED Rotary Mix are indicated for repairing or filling cranial defects and craniotomy cuts with a surface area no larger than 25 cm². CRANIOS REINFORCED Fast Set Putty and CRANIOS REINFORCED Rotary Mix are also indicated for the restoration or augmentation of bony contours of the cranial skeleton (including fronto-orbital areas), such as burr hole voids and other cranial defects.
Please see Directions for Use for full prescribing indications, contraindications, precautions and warnings.
CRANIOS REINFORCED BONE VOID FILLER
Contraindications CRANIOS REINFORCED Fast Set Putty and CRANIOS REINFORCED Rotary Mix are not intended for use in the spine and should not be used in the presence of active or suspected infection. CRANIOS REINFORCED Fast Set Putty and CRANIOS REINFORCED Rotary Mix are not for use in:• patients with traumatic open injuries that are predisposed to infection • stress-bearing applications, such as the temporomandibular joint• areas where adjacent bone is avascular, or is incapable of supporting or
anchoring the implant• patients with compromised health (e.g., abnormal calcium metabolism,
metabolic bone disease, a recent local untreated infection, vascular or severe neurological disease, infection, immunologic deficiencies, or systemic disorders) that result in poor wound healing or will result in tissue deterioration over the implant site
• patients who have not reached an age at which skull/facial growth is essentially complete
• defects contiguous with any of the paranasal sinuses• defects greater than 25 cm2
• CRANIOS REINFORCED is not intended for use in the spine
CRANIOS REINFORCED® Pone Void Filler Technical Monograph DePuy Synthes Companies 2
CHEMICAL PROPERTIES
Calcium Phosphate Calcium phosphate has been widely used in clinical applications for decades. There are a number of publications and clinical cases available which demonstrate its safety and effectiveness to address bone regeneration.¹,²
Sodium Hyaluronate SolutionSodium hyaluronate solution is a pH-neutral viscous solution that provides enhanced mixing and flow properties for a smooth and easy application.
Bioresorbable FibersThe bioresorbable poly(lactide co-glycolide) polymer fibers are randomly oriented and uniformly distributed in the material to impart an increase in toughness.* This incorporation of fibers into the matrix increases the material’s resistance to cracking during the setting process.
CRANIOS REINFORCED BONE VOID FILLER
* Toughness is defined as a measure of a material’s resistance to fracture when stressed. Mechanical test data on file with DePuy Synthes Companies, mechanical test number FRN test 132. Mechanical test results may not necessarily be indicative of clinical results.
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Approximation to BoneOnce CRANIOS REINFORCED Bone Void Filler is fully cured, the resulting biomaterial formed is carbonated apatite, which has a crystallographic characteristic and chemical composition similar to bone.
The carbonate content of carbonated apatite distinguishes CRANIOS REINFORCED Bone Void Filler from hydroxyapatite. Hydroxyapatite does not contain any carbonate; however the carbonate content of CRANIOS REINFORCED Bone Void Filler is 4.0–5.0%, which more closely resembles the composition of bone (Figure 1).
CRANIOS REINFORCED BONE VOID FILLER
A COMPOSITION SIMILAR TO BONE
CRANIOS REINFORCED Bone Void Filler
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CRANIOS REINFORCED® Pone Void Filler Technical Monograph DePuy Synthes Companies 4
CRANIOS REINFORCED Bone Void Filler
CRANIOS REINFORCED Bone Void Filler The tougher bone cement
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Performance in a Physiological EnvironmentIn order to set properly, CRANIOS REINFORCED Bone Void Filler requires a warm, wet environment which reduces the need to limit moisture at the operative site. The setting reaction of CRANIOS REINFORCED Bone Void Filler is isothermic, which does not cause thermal damage to the surrounding tissue.
Compressive StrengthAs the carbonated apatite forms, the compressive strength of the material increases. In approximately 24 hours, CRANIOS REINFORCED Bone Void Filler has achieved its full compressive strength (Figure 2).
MECHANICAL PROPERTIES
CRANIOS REINFORCED CRANIOS REINFORCED Bone3 Rotary Mix Fast Set Putty
Compressive Strength ~35MPa ~25MPa Cancellous Bone 5–7 MPa
Figure 2
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CRANIOS REINFORCED Bone Void FillerNorian CRS Bone Void FillerHydroSet (Stryker)
Toughness* Three-point bend testing confirms CRANIOS REINFORCED Bone Void Filler to be the tougher* bone cement with an increased ability to resist cracking.
Ceramic materials are brittle in flexural loading; however, the incorporation of bioresorbable fibers into CRANIOS REINFORCED Bone Void Filler increases the material’s resistance to fracture during flexural loading when compared to calcium phosphate cements without reinforcing fibers (Figure 3).
Comparison of Material Toughness*
Figure 3 – CRANIOS REINFORCED Bone Void Filler flexes but does not fail.
FIBERS INCREASE THE MATERIAL’S RESISTANCE TO CRACKING
CRANIOS REINFORCED Bone Void Filler The tougher bone cement
CRANIOS REINFORCED Bone Void Filler also displayed a high Work of Fracture, which is directly related to the toughness* of the material (Figure 4).
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Work of Fracture
CRANIOS REINFORCED CRANIOS REINFORCED Bone3 Rotary Mix Fast Set Putty
Compressive Strength ~35MPa ~25MPa Cancellous Bone 5–7 MPa
* Toughness is defined as a measure of a material’s resistance to fracture when stressed. Mechanical test data on file with DePuy Synthes Companies, mechanical test number FRN test 132. Mechanical test results may not necessarily be indicative of clinical results.
CRANIOS REINFORCED® Pone Void Filler Technical Monograph DePuy Synthes Companies 6
CRANIOS REINFORCED Bone Void Filler The tougher bone cement
Duration of Increased Toughness*
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CRANIOS REINFORCED Bone Void Filler has an increased toughness* imparted by the reinforcing fibers that is sustained over a period of several months (Figure 5). When the fibers degrade, the material is equivalent in strength to the previous, Norian CRS Bone Void Filler product.
ADDITIONAL TOUGHNESS*FOR SEVERAL MONTHS
* Toughness is defined as a measure of a material’s resistance to fracture when stressed. Mechanical test data on file with DePuy Synthes Biomaterials, mechanical test number FRN test 132. Mechanical test results may not necessarily be indicative of clinical results.
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Figure 6
FIBERS ARE SIGNIFICANTLY RESORBED IN 12 MONTHS
Fiber Degradation
Fiber ResorptionOver time, the reinforcing fibers begin to degrade through hydrolysis (Figure 6). The relationship between Work of Fracture and the fiber molecular weight test was determined to be directly proportional.
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EASIER TO INJECT
CRANIOS REINFORCED Bone Void Filler The tougher bone cement
Injection Test–Peak Load
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InjectionFor ergonomic reasons, the amount of load required to inject the material out of a syringe should be minimized. An elevated injection force may make it difficult to successfully implant the biomaterial. Each material was injected through a 12 gauge, 10 cm delivery needle (available through DePuy Synthes Companies) during the material’s working time. The results of the injection test showed the amount of force required to inject both CRANIOS REINFORCED Rotary Mix and Norian CRS Rotary Mix to be comparable. While, in contrast, HydroSet (Stryker) required more than twice the injection force to inject (Figure 7).
CRANIOS REINFORCED® Pone Void Filler Technical Monograph DePuy Synthes Companies 8
CRANIOS REINFORCED Fast Set Putty, sterile
615.03.01S 3 cc
615.05.01S 5 cc
615.10.01S 10 cc
CRANIOS REINFORCED Rotary Mix, sterile
616.03.01S 3 cc
616.05.01S 5 cc
616.10.01S 10 cc
Delivery Needles, sterile
612.40.01S 8 gauge x 10 cm, 1/pkg.
612.41.01S 10 gauge x 10 cm, 1/pkg.
612.41.05S 10 gauge x 10 cm, 5/pkg.
612.42.01S 12 gauge x 10 cm, 1/pkg.
PRODUCT INFORMATION
MXR-US-2000 Rotary Mixer
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1. Cassidy C, Jupiter JB, Cohen M, Delli-Santi M, Fennell C, Leinberry C, et al. Norian SRS cement compared with conventional fixation in distal radial fractures. A randomized study. J Bone Joint Surg Am. 2003 Nov;85-A:2127–2137.
2. Chang BS, Lee CK, Hong KS, Youn HJ, Ryu HS, Chung SS, et al. Osteoconduction at porous hydroxyapatite with various pore configurations. Biomaterials. 2000;21:1291–1298.
3. Cowin, SC, ed. Bone Mechanics Handbook, 2nd ed. New York, NY: RC Press, 2001.
REFERENCES
CRANIOS REINFORCED® Pone Void Filler Technical Monograph DePuy Synthes Companies 10
© DePuy Synthes 2015. All rights reserved.Norian and SRS are trademarks of DSM Biomedical or its affiliates. Stryker Orthopaedics and HydroSet are trademarks of Stryker Corp. or its affiliates. DSUS/MOC/1214/0186 12/15 DV
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Manufactured by (United States):
Synthes USA Products, LLC1302 Wrights Lane EastWest Chester, PA 19380 Telephone: (610) 719-5000 To order: (800) 523-0322Fax: (610) 251-9056
www.depuysynthes.com