A minimally invasive fusion technique may result in faster recovery screw fusion surgery, the coflex-F procedure often results in a Lanx® Aspen™ = %. Orthopedics Today | It is generally accepted that spinal fusion, in conjunction with decompression, produces better clinical outcomes in patients with. The Aspen line of spinal instrumentation products from Lanx is unique These devices can be used for less invasive surgery under certain circumstances. This technique gets a little difficult towards the lumbrosacral junction.

Author: JoJomuro Kelar
Country: Congo
Language: English (Spanish)
Genre: Automotive
Published (Last): 11 December 2013
Pages: 209
PDF File Size: 12.25 Mb
ePub File Size: 10.14 Mb
ISBN: 484-3-58336-525-5
Downloads: 67883
Price: Free* [*Free Regsitration Required]
Uploader: Voodookree

The lateral X-ray image reveals the radiographic marker of the BacJac implanted at L4-L5 interspinous area. Type of Implants Contemporary models of fusion interspinous devices have evolved from spinous process wiring with bone blocks and early device designs as the Wilson plate: Longitudinal techniqque is applied and a crimper is used to secure the rivets and the excess length of the bands is cut.

Enlargement of the Aspenn Canal Area A decisive index for the relief of the clinical signs and symptoms is the enlargement spinal canal area. The facing surfaces of the spinous processes are decorticated.

Aspen MIS Fusion System | Aspen MIS Fusion System by Zimmer Biomet

Kondrashov reported that X-Stop was significantly more tecnnique than laminectomy. Alcoholism or heavy smoking. It works at the same time as a shock adsorber. The posterior Fusion device consists of spinous process plates made of Titanium Alloy and commercially pure titanium Figure View at Google Scholar O.

Proprietary spiked-plate design provides reliable bone fixation.

BioMed Research International

It is an all-titanium peek surrounded since end of device composed by an oval spacer, one fixed wing, one adjustable wing, and one tissue expander Figures 1 and 2. Thereafter, the wing clamps of the interspinous U are tightened against both edges of the upper and lower spinal process. The inferior aspect of the spinous processes must be trimmed, if necessary, to facilitate insertion of the interspinous spacer.


This material is intended for health care professionals. The self-distracting helical tip of the Helifix Interspinous Distraction System. The Aspen MIS Fusion System consists of a family of spinous process fixation devices designed for rigid, posterior fixation to promote fusion from T1 to S1. But in this paper, the beneficial outcomes reported were misleading inflated and, in addition, there was a conflict of interest for the two primary authors.

Owing to flaws in design, material, surgical technique, and applied indications, its use was abandoned. The implant core is manufactured of Titanium alloy TiAl6V4 alloy while the external shell is composed of pure Titanium.

Zimmer Biomet Spine, Inc. By turning the actuating handle of the inserter, a compressive force is created, retracting the outer shell and deploying the wings, which expand on each side of the spinous process, stabilizing the interspinous implant on the midline Figures 101112and PLIF constructs with IPD and pedicle screws performed equivalently in flexion-extension and axial rotation, but the PLIF-bilateral pedicle screws construct was more resistant to lateral bending motions.

In surgiccal reported prospective trial, the application of the first generation Wallis device improved outcome in patients who underwent a second discectomy. The X-Stop device Medtronic, Tolochenaz, Switzerland was approved by the US Food and Drug Administration in for the treatment of neurogenic intermittent claudication secondary to lumbar stenosis [ surgcal ]. But in their study, they used the cost perspective of the hospital rather than that of the society; in addition, the senior author of the study was one of the inventors of the X-Stop device and had financial ties to the manufacturer.

Patients were randomized in a 2: The images are subsequently evaluated to identify load-induced changes.

Surgical technique was as follows: Typically, patients complain about low back pain with or without pseudoradicular pain or dysesthesia. It can be used alone or in combination with other spinal devices e.

Signs of local infection or inflammation. They found that they all had similar effect on the flexibility, reducing the intradiscal pressure in extension, but having no effect in flexion, lateral bending, and axial rotation.


Other general complications associated with any spinal surgical procedure may include: The Aspen device has not been tested for heating or migration in the MR environment. Anderson reported two years outcome in patients whose symptoms were due to degenerative spondylolisthesis at one or two levels; using ZCQ and SF questionnaire, The platform pushes under computer control, maintaining a stable push during the examination: To define the appropriate implant size, trials are utilized.

Although the initial reports represented the IPD tecchnique a safe, effective, and minimally invasive surgical alternative for relief of neurological symptoms in patients with low back degenerative diseases, recent studies have demonstrated less impressive clinical results and suegical rate of failure than initially reported. Various authors suggest that advantages of IPD compared with standard surgical decompression techniques are the option of local anesthesia, preservation of bone and soft tissue, reduced risk of epidural scarring and cerebrospinal fluid leakage, with a shorter hospital stay and rehabilitation period, and reversibility of the surgical procedure that does not limit future surgical treatment options [ 39 — 46 ].

Despite favorable results, Senegas thought that the device could be improved. The spacer has a distal and proximal 10 degrees inclined groove to better house the spinous processes and adapt to the anatomy of the spinous processes. We listed the most important devices that are still on the market Table techniqque.

Nevertheless, major criticism against this index is the absence of a direct correlation between the interspinous distance and the clinical symptoms. Inadequate tissue coverage over the operative site. Surgeons should be aware that the insertion of an interspinous device requires personalized forces and caution, but osteopenia is not an absolute contraindication for the operation. Subscribe to Table of Contents Alerts.