A new cannula to ease cement injection during vertebroplasty

Baroud, Gamal; Steffen, Thomas

doi:10.1007/s00586-004-0822-1

Cited by 31 publications

(19 citation statements)

References 20 publications

(30 reference statements)

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“…The experimental results demonstrated that the best way to decrease the risk of extravasation is to increase the cement viscosity. Baroud and Steffen [5] designed a new cannula with a larger internal diameter in the proximal section. Both the experimental and analytical findings confirmed the redesigned cannula reduces the delivery pressure significantly and has the potential to improve vertebroplasty.…”

Section: Discussionmentioning

confidence: 99%

Revision strategies for complications and failure of vertebroplasties

Yang

Chen

et al. 2008

Eur Spine J

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Percutaneous vertebroplasty is widely discussed in the management of osteoporotic spinal compression fracture, but few reports are available concerning salvage procedures after failure of this technique. We studied 22 percutaneous vertebroplasty patients who required revision surgery upon presentation of new symptoms postoperatively. The indications for revision surgery included recurrent intractable back pain with no response to medical treatment, infectious spondylitis, cement leakage with neurologic deficit, and cement dislodgement and/ or fragmentation. Five patients underwent repeated percutaneous vertebroplasty of the initially cemented vertebrae. Seventeen patients underwent anterior, posterior, or combined anterior and posterior surgery. Four patients required a third surgical procedure because of poor augmentation with cement, subsidence of the anterior bone graft, or pullout of the instrumentation. Finally, four (18%) patients underwent repeat vertebroplasty, two (9%) patients underwent anterior surgery only, one (5%) patient underwent posterior surgery only, and 15 (68%) patients underwent combined anterior and posterior surgery; all but one regained ambulatory status equivalent to that prior to surgery. In conclusion, percutaneous vertebroplasty is a simple and effective, but not risk-or complication-free procedure for the treatment of osteoporotic spinal compression fracture. The spine surgeon should be familiar with varied approaches and techniques for revision surgery. Combined anterior and posterior surgery seems to be the most secure salvage method to treat severely osteoporotic patients in whom percutaneous vertebroplasty initially failed.

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Section: Discussionmentioning

confidence: 99%

Revision strategies for complications and failure of vertebroplasties

Yang

Chen

et al. 2008

Eur Spine J

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“…As an example, the interested readers are referred to a new cannula to ease cement injection during vertebroplasty [619]; however, this subject is beyond the scope of current review.…”

Section: Future Developmentsmentioning

confidence: 99%

Self-Setting Calcium Orthophosphate Formulations: Cements, Concretes, Pastes and Putties

Dorozhkin¹

2012

IJMC

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In early 1980s, researchers discovered self-setting calcium orthophosphate cements, which are a bioactive and biodegradable grafting material in the form of a powder and a liquid. Both phases after mixing form a viscous paste that after being implanted sets and hardens within the body as either a non-stoichiometric calcium deficient hydroxyapatite (CDHA) or brushite, sometimes blended with un-reacted particles and other phases. As both CDHA and brushite are remarkably biocompartible and bioresorbable (therefore, in vivo they can be replaced with a newly forming bone), self-setting calcium orthophosphate cements represent a good correction technique of non-weight-bearing bone fractures or defects and appear to be very promising materials for bone grafting applications. Besides, these cements possess an excellent osteoconductivity, molding capabilities, and easy manipulation. Nearly perfect adaptation to the tissue surfaces in bone defects and a gradual bioresorption followed by new bone formation are additional distinctive advantages of calcium orthophosphate cements. Besides, reinforced formulations are available; those are described as calcium orthophosphate concretes. Furthermore, formulations with high viscosity, such as pastes and putties are also known. The discovery of self-setting formulations has opened up a new era in the medical application of calcium orthophosphates; several commercial compositions have already been introduced as a result. Many more formulations are in experimental stages. In this review, an insight into the self-setting calcium orthophosphate formulations, as excellent biomaterials suitable for both dental and bone grafting applications, has been provided.

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“…It consists of several ingredients that all have their importance. To site, PMMA is composed by methyl methacrylate, PMMA powder ,radio-opacifier, dibenzoyl peroxide, and other additives such as stabilizers, inhibitors, radical catchers, coloring agents and antibiotics (Berlemann,U (2008); Baroud G, Steffen T (2005);Bohner M, et.al (2003)). PMMA is an easy handled product.…”

Section: Product Usedmentioning

confidence: 99%