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      A case of cervical metastases in a patient with preexisting cervical disc replacement and fusion after 2-year symptom-free interval: when do we need interdisciplinary diagnostics?

      case-report
      1 , 2
      Evidence-Based Spine-Care Journal
      © AOSpine International

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          Abstract

          Recurrent cervical symptoms frequently occur after cervical disc replacement and fusion. To date, no algorithm for the diagnostic assessment of these symptoms has been established. We present a case report and review of the literature to illustrate the need for interdisciplinary diagnostics in recurrent cervicobrachialgia without pathological cervical imaging. The hospital chart, medical history, physical examination, and imaging of a single patient were reviewed. A 53-year-old man with preexisting cervical disc replacement and fusion presented with a new episode of cervicobrachialgia after a 2-year symptom-free interval. Cervical magnetic resonance imaging (MRI) showed no pathological findings. Six months later the patient reported increasing symptoms including numbness and weakness of the right arm. Repeated cervical MRI and thoracic computed tomography revealed cervical metastases with intraspinal tumor growth and an underlying extensive small cell bronchial carcinoma. In recurrent cervicobrachialgia, without pathological cervical imaging, interdisciplinary diagnostics are needed. Basic diagnostic tests may assist to exclude severe non-vertebrogenic pathologies.

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          Most cited references15

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          Results of the prospective, randomized, controlled multicenter Food and Drug Administration investigational device exemption study of the ProDisc-C total disc replacement versus anterior discectomy and fusion for the treatment of 1-level symptomatic cervical disc disease.

          Cervical total disc replacement (TDR) is intended to address radicular pain and preserve functional motion between two vertebral bodies in patients with symptomatic cervical disc disease (SCDD). The purpose of this trial is to compare the safety and efficacy of cervical TDR, ProDisc-C (Synthes Spine Company, L.P., West Chester, PA), to anterior cervical discectomy and fusion (ACDF) surgery for the treatment of one-level SCDD between C3 and C7. The study was conducted at 13 sites. A noninferiority design with a 1:1 randomization was used. Two hundred nine patients were randomized and treated (106 ACDF; 103 ProDisc-C). Visual analog scale (VAS) pain and intensity (neck and arm), VAS satisfaction, neck disability index (NDI), neurological exam, device success, adverse event occurrence, and short form-36 (SF-36) standardized questionnaires. A prospective, randomized, controlled clinical trial was performed. Patients were enrolled and treated in accordance with the US Food and Drug Administration (FDA)-approved protocol. Patients were assessed pre- and postoperatively at six weeks, 3, 6, 12, 18, and 24 months. Demographics were similar between the two patient groups (ProDisc-C: 42.1+/-8.4 years, 44.7% males; Fusion: 43.5 +/- 7.1 years, 46.2% males). The most commonly treated level was C5-C6 (ProDisc-C: 56.3%; Fusion=57.5%). NDI and SF-36 scores were significantly less compared with presurgery scores at all follow-up visits for both the treatment groups (p<.0001). VAS neck pain intensity and frequency as well as VAS arm pain intensity and frequency were statistically lower at all follow-up timepoints compared with preoperative levels (p<.0001) but were not different between treatments. Neurologic success (improvement or maintenance) was achieved at 24 months in 90.9% of ProDisc-C and 88.0% of Fusion patients (p=.638). Results show that at 24 months postoperatively, 84.4% of ProDisc-C patients achieved a more than or equal to 4 degrees of motion or maintained motion relative to preoperative baseline at the operated level. There was a statistically significant difference in the number of secondary surgeries with 8.5% of Fusion patients needing a re-operation, revision, or supplemental fixation within the 24 month postoperative period compared with 1.8% of ProDisc-C patients (p=.033). At 24 months, there was a statistically significant difference in medication usage with 89.9% of ProDisc-C patients not on strong narcotics or muscle relaxants, compared with 81.5% of Fusion patients. The results of this clinical trial demonstrate that ProDisc-C is a safe and effective surgical treatment for patients with disabling cervical radiculopathy because of single-level disease. By all primary and secondary measures evaluated, clinical outcomes after ProDisc-C implantation were either equivalent or superior to those same clinical outcomes after Fusion.
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            Early results and review of the literature of a novel hybrid surgical technique combining cervical arthrodesis and disc arthroplasty for treating multilevel degenerative disc disease: opposite or complementary techniques?

            We report the clinical and radiological results on the safety and efficacy of an unusual surgical strategy coupling anterior cervical discectomy and fusion and total disc replacement in a single-stage procedure, in patients with symptomatic, multilevel cervical degenerative disc disease (DDD). The proposed hybrid, single-stage, fusion-nonfusion technique aims either at restoring or maintaining motion where appropriate or favouring bony fusion when indicated by degenerative changes. Twenty-four patients (mean age 46.7 years) with symptomatic, multilevel DDD, either soft disc hernia or different stage spondylosis per single level, with predominant anterior myeloradicular compression and absence of severe alterations of cervical spine sagittal alignment, have been operated using such hybrid technique. Fifteen patients underwent a two-level surgery, seven patients received a three-level surgery and two a four-level procedure, for a total of 59 implanted devices (27 disc prostheses and 32 cages). Follow-up ranged between 12 and 40 months (mean 23.8 months). In all but one patient clinical follow-up (neurological examination, Nurick scale, NDI, SF-36) demonstrated significant improvement; radiological evaluation showed functioning disc prostheses (total range of motion 3-15 degrees ) and fusion through cages. None of the patients needed revision surgery for persisting or recurring symptoms, procedure-related complications or devices dislocations. To the authors' best knowledge, this is the first study with the longest available follow-up describing a different concept in the management of cervical multilevel DDD. Although larger series with longer follow-up are needed, in selected cases of symptomatic multilevel DDD, the proposed surgical strategy appears to be a safe and reliable application of combined arthroplasty and arthrodesis during a single surgical procedure.
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              Treatment of cervical degenerative disc disease - current status and trends.

              M Korinth (2008)
              Although less frequent than lumbar degenerative disc disease, cervical disc disease may be much more neurologically compromising due to anatomical particularities. Since its first description together with the typical signs and symptoms the operative therapy of cervical disc disease has undergone a changeful evolution over the years. The frequent shifts of paradigms in treatment are particularly noticeable compared to other neurosurgical diseases. Initially, the dorsal decompression of neural structures (laminectomy) with a more or less invasive posterior approach (posterior foraminotomy) was the primary aim of the operation. Because of anatomical limitations, a paradigm shift occurred in the middle of the last century, favouring an anterior approach and discectomy, without and with implantation of various spacers (arthrodesis). A large variety of different materials and designs for these implants as alternatives to autologous iliac crest bone were established, all with the aim of creating a solid fusion of the operated segment. Anterior cervical discectomy and fusion (ACDF), regarded worldwide as the "gold standard" for the treatment of cervical disc disease, was later complemented by modified, minimally invasive or endoscopic techniques using anterior and posterior approaches. The fear of adjacent level disease in the vicinity of a fused cervical segment led to another paradigm shift in the last few years, away from fusing procedures, towards new motion preserving technologies (arthroplasty) and back to minimally invasive dorsal techniques for the treatment of cervical disc disease. This article reviews the evolution of the operative treatment of cervical disc disease in the last 80 years, outlines the advantages and disadvantages of each approach and technique and focuses on the rationale of the paradigm shifts. Current established and alternative treatment concepts are illuminated and discussed together with the currently relevant literature.
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                Author and article information

                Journal
                Evid Based Spine Care J
                Evid Based Spine Care J
                EBSJ
                Evidence-Based Spine-Care Journal
                © AOSpine International (Stettbachstrasse 6 8600 Dübendorf, Switzerland )
                1663-7976
                1869-4136
                August 2012
                1 August 2012
                : 3
                : 3
                : 51-56
                Affiliations
                [1 ]Western Australian Institute for Medical Research, University of Western Australia
                [2 ]Department of Orthopaedic Surgery, Asklepios Klinikum Uckermark, Schwedt/Oder, Germany
                Author notes
                Address for correspondence Markus Melloh markus.melloh@ 123456otago.ac.nz
                Article
                03051
                10.1055/s-0032-1327810
                3592761
                23526906
                314b183e-b3ed-4001-a475-9aa9400adc5a
                © Thieme Medical Publishers
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