RTI launches Unison-C cervical implant

RTI Surgical said today it launched its Unison-C anterior cervical fixation system designed and indicated for stand-alone anterior cervical interbody fusion procedures for treating degenerative disc disease. Along with the launch, the company reported that the 1st human implantation of the device had been performed during an anterior cervical discectomy and fusion last week. “The instrumentation is designed with efficiency in mind. I appreciate the fact that I can place the implant, deploy the fixation and secure the locking mechanism all through a single instrument. I feel that the streamlined surgical technique combined with a stable zero profile construct gives my patients the greatest potential for a successful outcome,” Dr. Joseph Blythe of Nashville, Tenn.’s St. Thomas Midtown Hospital said in a press release. The device is cleared for use at a single level of the spine from C2 to T1 in skeletally mature patients, and consists of an intervertebral body device with an integrated locking mechanism and 2 screws. The Alachua, Fla.-based company said the system is designed for use with an autograft or allograft. “The Unison-C System is an exciting addition to our direct business’ spine portfolio that allows us to compete in the standalone interbody market. We were excited to work with Dr. Blythe on this first implantation and look forward to sharing this technology with other surgeons as we expand our offerings and improve patient care,” C...
Source: Mass Device - Category: Medical Equipment Authors: Tags: Business/Financial News Spinal RTI Surgical Source Type: news

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Conclusions: Through this systemic review and meta-analysis, no significant difference was found with regards to fusion rate, postoperative NDI, and VAS between tantalum fusion and iliac crest bone graft in ACDF. More longer-term and randomized studies with large samples are warranted to validate any association found in this study. Level of Evidence: Level II.
Source: Journal of Spinal Disorders and Techniques - Category: Surgery Tags: Systematic Review Source Type: research
Conclusion: This corpectomy reconstructive technique takes advantage of the favorable osteogenic properties of autograft, while avoiding donor site morbidity as well as the cost and complications of other devices, such as cages. Further cases are required to verify the safety, efficacy, and biomechanical stability of this technique. PMID: 32123612 [PubMed]
Source: Surgical Neurology International - Category: Neurosurgery Tags: Surg Neurol Int Source Type: research
Conclusions: For one-level ACDF, the anchored cage with screws has some advantage compared to the stand-alone PEEK cage in avoiding dysphagia and restoring disc space height and cervical lordosis. We suggest the anchored spacer may be a good substitute for the stand-alone cage in one-level ACDF. Level of Evidence: Level II
Source: Current Orthopaedic Practice - Category: Orthopaedics Tags: Original Research Source Type: research
Publication date: Available online 18 February 2020Source: Journal of Orthopaedic TranslationAuthor(s): Ya-Dan Wen, Wei-Min Jiang, Hui-Lin Yang, Jin-Hui ShiAbstractBackgroundAnterior cervical discectomy and fusion (ACDF), commonly using autogenous iliac bone graft, may be limited by donor site availability, donor site morbidity, lower fusion rate among specific patients and longer surgical time. Surgeons used rhBMP-2 as an alternative to fill these clinical needs. However, studies comparing ACDF with and without rhBMP-2 have reported conflicting results on efficacy and complications.PurposeTo evaluate efficacy and complica...
Source: Journal of Orthopaedic Translation - Category: Orthopaedics Source Type: research
CONCLUSIONS Both ACDF and ACCF can provide satisfactory spinal stability. ACDF may be beneficial for subsidence resistance due to the lower stress peaks on the endplate. The ACCF may perform better in long-term stability and bone fusion owing to the lower stress peaks in the fixation system and bone-screw interfaces, and higher stress peaks in the bone graft. PMID: 32020914 [PubMed - in process]
Source: Medical Science Monitor - Category: Research Tags: Med Sci Monit Source Type: research
Posterior pedicle screws demonstrated the best mechanical stability of allospacer failure-subsidence and the lowest risk of screw loosening. Different motion restrictions depending on the fixation method should be considered for implant and allospacer safety.
Source: Clinical Biomechanics - Category: Orthopaedics Authors: Source Type: research
Abstract OBJECTIVE: Common interbody graft options for anterior cervical discectomy and fusion (ACDF) include allograft and polyetheretherketone (PEEK). PEEK has gained popularity due to its radiolucent properties and a modulus of elasticity similar to that of bone. PEEK devices also result in higher billing costs than allograft, which may drive selection. A previous study found a 5-fold higher rate of pseudarthrosis with the use of PEEK devices compared with structural allograft in single-level ACDF. Here the authors report on the occurrence of pseudarthrosis with PEEK devices versus structural allograft in patie...
Source: Journal of Neurosurgery.Spine - Category: Neurosurgery Authors: Tags: J Neurosurg Spine Source Type: research
AbstractRecently, a bioactive glass ceramic (BGC) has been developed for use as intervertebral cages for anterior cervical discectomy and fusion (ACDF). However, the effectiveness and safety of BGC cages remain to be evaluated. We completed a retrospective comparison of the radiological and clinical outcomes of 36 patients (52 levels) who underwent ACDF with a BGC cage and 35 patients (54 levels) using allograft bone. The following variables were compared between the two groups: the visual analog (VAS) neck and arm pain score and the neck disability index (NDI), measured before surgery and 1  year after; the change in...
Source: Neurosurgical Review - Category: Neurosurgery Source Type: research
MD+DI has taken a hard look at the private medtech sector and developed this list of 20 private companies we will be paying particularly close attention to in the new year. It was not an easy task. There are so many interesting private companies in the industry right now that we started with a much longer list and whittled it down to the 20 companies that stood out most to us. So without further ado, here are the 20 companies that made the cut: 4C Medical is developing the AltaValve, a transcatheter mitral valve replacement (TMVR) platform designed to address mitr...
Source: MDDI - Category: Medical Devices Authors: Tags: Business Source Type: news
MD+DI has taken a hard look at the private medtech sector and developed this list of 20 private companies we will be paying particularly close attention to in the new year. It was not an easy task. There are so many interesting private companies in the industry right now that we started with a much longer list and whittled it down to the 20 companies that stood out most to us. So without further ado, here are the 20 companies that made the cut: 4C Medical is developing the AltaValve, a transcatheter mitral valve replacement (TMVR) platform designed to address mitr...
Source: MDDI - Category: Medical Devices Authors: Tags: Business Source Type: news
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