Evidence-based spine-care journal最新文献

{"title":"Commentary on: \"Lumbar Intervertebral Discal Cyst: A Rare Cause of Low Back Pain and Radiculopathy. Case Report and Review of the Current Evidences on Diagnosis and Management\".","authors":"Marc D Moisi, Jeni Page, Rod J Oskouian","doi":"10.1055/s-0034-1387803","DOIUrl":"https://doi.org/10.1055/s-0034-1387803","url":null,"abstract":"An intradiscal cyst is one of the least common etiologies of lumbar radicular pain. Although it may appear that the pathophysiology is self-explanatory, the formation and natural historyof the condition continues to eludesurgeonsbecause of its infrequency.Thus,literatureandresearchregarding thetopicis limited, making the developmentofanaccurate understanding regarding the treatment of the discs quite challenging. Certo et al illustrate a case of an intervertebral discal cyst that presented with lumbar pain and radiculopathy. Their report included an in-depth review of the literature with a total of 105 cases regarding management of these rare cysts. Prior to considering surgical intervention, understanding of the formation and composition of the cysts is crucial to determining the best treatment modality. The authors discuss several instances in the literature that have attempted to define the consistency, as well the characteristics, of such cysts. Chiba et al have given a very thorough descriptive evaluation of such cysts, including location, symptomatology (unilateral nerve root), fluid content, and lack of disc material within the cystic lesion. However, in 2010, Kobayashi et al 1 argued that in their two cases the histological features of the cyst were similar to the absorption process of a disc herniation, and the presence of residual herniated tissues was confirmed in the cyst wall. Thus, the actual pathological features regarding these lesions continue to remain elusive. Despitequestionsregarding theformationandcomposition of the cyst, the diagnosis can be made and confirmed with magnetic resonance imaging (MRI) with and without contrast enhancement. OnMRI, the cyst wall is contrast-enhancing and is connected to the disc space. We agree with the authors that MRI is the essential tool in the diagnosis of the discal cyst, but we do not find much added value to doing discography followed by a computed tomography (CT) scan as it would not significantly alter the management of the patient. Ultimately, the most important part to learn from this review is how to manage such a patient if one presents himself to your office. In our opinion, the symptoms should determine the treatment. If the patient presents with tolerable pain without neurological deficits, conservative medical therapies and management should be the first line in management.Aydin etal 2 discuss medicaltherapies, and although the failure rate was 62.5% with the ultimate result of surgery, there is value to conservatively managing a patient given the","PeriodicalId":89675,"journal":{"name":"Evidence-based spine-care journal","volume":"5 2","pages":"149-50"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/s-0034-1387803","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32716965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Definition of Levels of Evidence (LoE) and Overall Strength of Evidence (SoE).","authors":"","doi":"10.1055/s-0034-1394106","DOIUrl":"https://doi.org/10.1055/s-0034-1394106","url":null,"abstract":"Cohort studies follow individuals with the exposure of interest over time and monitor for occurrence of the outcome of interest. Applies to cohort studies only. Authors must consider other factors that might influence patient outcomes and should control for them if appropriate. A good case-control study must have the all of the following: all incident cases from the defined population over a specified time period, controls that represent the population from which the cases come, exposure that precedes an outcome of interest, and accounting for other prognostic factors. A good cross-sectional studymust have all of the following: a representative sample of the population of interest, an exposure that precedes an outcome of interest (e.g., sex, genetic factor), an accounting for other prognostic factors, and for surveys, at least a 80% return rate. A case-series design for prognosis is one where all the patients in the study have the exposure of interest. Since all the patients have the exposure, risks of an outcome can be calculated only for those with the exposure, but cannot be compared with those who do not have the exposure. For example, a case-series evaluating the effect of smoking on spine fusion that only recruits patients who smoke can simply provide the risk of patients who smoke that result in pseudarthrosis but cannot compare this risk to those that do not smoke.","PeriodicalId":89675,"journal":{"name":"Evidence-based spine-care journal","volume":"5 2","pages":"166"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/s-0034-1394106","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32716969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hydrocephalus following bilateral dumbbell-shaped c2 spinal neurofibromas resection and postoperative cervical pseudomeningocele in a patient with neurofibromatosis type 1: a case report.","authors":"Nicola Montemurro,&nbsp;Ardico Cocciaro,&nbsp;Antonio Meola,&nbsp;Ludovico Lutzemberger,&nbsp;Riccardo Vannozzi","doi":"10.1055/s-0034-1387805","DOIUrl":"https://doi.org/10.1055/s-0034-1387805","url":null,"abstract":"<p><p>Study Design Case report. Objective To present a rare case of hydrocephalus following bilateral dumbbell-shaped C2 spinal neurofibromas resection and postoperative cervical pseudomeningocele in a patient with neurofibromatosis type 1 (NF1). Methods The patient's clinical course is retrospectively reviewed. A 37-year-old man affected by NF1 referred to our department for progressive weakness of both lower extremities and gait disturbance. Radiological imaging showed bilateral dumbbell-shaped C2 spinal neurofibromas. After its resection, at the 1-month follow-up evaluation, the patient reported headache and nausea. A CT brain scan showed a postoperative cervical pseudomeningocele and an increase in the ventricular sizes, resulting in hydrocephalus. Results A ventriculoperitoneal shunting was performed using a programmable valve opening pressure set to 120 mmH20. After surgery, the patient's neurological status markedly improved. Conclusion Hydrocephalus must be considered a possible complication of cervical spine tumor resection. </p>","PeriodicalId":89675,"journal":{"name":"Evidence-based spine-care journal","volume":"5 2","pages":"136-8"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/s-0034-1387805","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32786517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Administrative database studies: goldmine or goose chase?","authors":"Robin E Hashimoto,&nbsp;Erika D Brodt,&nbsp;Andrea C Skelly,&nbsp;Joseph R Dettori","doi":"10.1055/s-0034-1390027","DOIUrl":"https://doi.org/10.1055/s-0034-1390027","url":null,"abstract":"Administrative data provide researchers with relatively inexpensive access to large numbers of patients nationwide and are increasingly being used for epidemiological, effectiveness, and safety outcomes studies. Publically available databases from sources such as the NIS and CMS provide information on large proportions of medical visits in the United States, and provide a good source of “real-world” health care data for reliably reported data. However, because administrative data are primarily gathered for billing purposes rather than research purposes, there are several limitations that must be considered, including the potential for inaccuracy and bias. As for all study types, critical appraisal of administrative database studies are critical to avoid arriving at inaccurate conclusions.","PeriodicalId":89675,"journal":{"name":"Evidence-based spine-care journal","volume":"5 2","pages":"74-6"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/s-0034-1390027","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32716459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"To the occiput or not? C1-c2 ligamentous laxity in children with down syndrome.","authors":"Kris Siemionow,&nbsp;Dean Chou","doi":"10.1055/s-0034-1386749","DOIUrl":"https://doi.org/10.1055/s-0034-1386749","url":null,"abstract":"<p><p>Study Design Retrospective case review. Objective Atlantoaxial instability with and without basilar invagination poses a considerable challenge in management regarding reduction, surgical approach, decompression, instrumentation choice, and extent of fusion. A variety of strategies have been described to reduce and stabilize cranial settling with basilar invagination. Modern instrumentation options included extension to the occiput, C1-C2 transarticular fixation, and C1 lateral mass-C2 pars among others. Since not all cases of cranial settling are the same, their treatment strategies also differ. Factors such as local vascular anatomy, amount of subluxation, need for distraction, and shape of occipital condyles will dictate level and type of instrumentation. The objective of this study was to outline treatment options and provide a rationale for the surgical plan. Methods Two cases of C1-C2 instability in patients with Down syndrome are described. Case 2 underwent C1-C2 instrumented fusion, whereas case 1 involved posterior instrumented fusion to the occiput. Results Both patients tolerated the procedures well. There were no complications. Minimum follow-up was 1 year. There was no loss of reduction. Solid arthrodesis was achieved in both cases. Conclusion Successful reduction can be achieved with both C1-C2 instrumented fusion as well as O-C instrument fusion. Factors such as local vascular anatomy, amount of subluxation, need for distraction, and shape of occipital condyles will dictate level and type of instrumentation. </p>","PeriodicalId":89675,"journal":{"name":"Evidence-based spine-care journal","volume":"5 2","pages":"112-8"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/s-0034-1386749","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32786514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"L4 and L5 spondylectomy for en bloc resection of giant cell tumor and review of the literature.","authors":"David R Santiago-Dieppa,&nbsp;Lee S Hwang,&nbsp;Ali Bydon,&nbsp;Ziya L Gokaslan,&nbsp;Edward F McCarthy,&nbsp;Timothy F Witham","doi":"10.1055/s-0034-1387804","DOIUrl":"https://doi.org/10.1055/s-0034-1387804","url":null,"abstract":"<p><p>Study Design Case report and review of the literature. Objective We present the case of a two-level lumbar spondylectomy at L4 and L5 for en bloc resection of a giant cell tumor (GCT) and lumbopelvic reconstruction. Methods A 58-year-old woman presented with a 7-month history of progressive intractable back and leg pain secondary to a biopsy-proven Enneking stage III GCT of the L4 and L5 vertebrae. The patient underwent a successful L4-L5 spondylectomy and lumbopelvic reconstruction using a combined posterior and anterior approach over two operative stages. Results Postoperative complications included a deep wound infection and a cerebrospinal fluid leak; however, following surgical debridement and long-term antibiotic treatment, the patient was neurologically intact with minimal pain and there was no evidence of tumor recurrence or instrumentation failure at more than 2 years of follow-up. Conclusion Spondylectomy that achieves en bloc resection is a viable and effective treatment option that can be curative for Enneking stage III GCTs involving the lower lumbar spine. The lumbosacral junction represents a challenging anatomic location for spinal reconstruction after spondylectomy with unique technical considerations. </p>","PeriodicalId":89675,"journal":{"name":"Evidence-based spine-care journal","volume":"5 2","pages":"151-7"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/s-0034-1387804","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32788540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correlation of posterior occipitocervical angle and surgical outcomes for occipitocervical fusion.","authors":"Christopher M Maulucci,&nbsp;George M Ghobrial,&nbsp;Ashwini D Sharan,&nbsp;James S Harrop,&nbsp;Jack I Jallo,&nbsp;Alexander R Vaccaro,&nbsp;Srinivas K Prasad","doi":"10.1055/s-0034-1386756","DOIUrl":"https://doi.org/10.1055/s-0034-1386756","url":null,"abstract":"<p><p>Study Type Retrospective cohort study. Introduction Craniocervical instability is a surgical disease, most commonly due to rheumatoid arthritis, trauma, erosive pathologies such as tumors and infection, and advanced degeneration. Treatment involves stabilization of the craniovertebral junction by occipitocervical instrumentation and fusion. However, the impact of the fixed occipitocervical angle on surgical outcomes, in particular the need for revision surgery and the incidence of dysphagia, remains unknown. Occipitocervical fusions (OCFs) at a single institution were reviewed to evaluate the relationships between postoperative neck alignment, the need for revision surgery, and dysphagia. Objective The objective of this study is to determine whether an increased posterior occipital cervical angle results in an increase in the need for revision surgery, and secondary, dysphagia. Methods A retrospective review of spinal surgery patients from January 2007 to June 2013 was conducted searching for patients who underwent an occipitocervical instrumented fusion utilizing diagnostic and procedural codes. Specifically, a current procedural code of 22590 (arthrodesis, posterior technique [craniocervical]) was queried, as well those with a description of \"craniocervical\" or \"occipitocervical\" arthrodesis. Ideal neck alignment before rod placement was judged by the attending surgeon. A review of all cases for revision surgery or evidence of dysphagia was then conducted. Results From January 2007 to June 2013, 107 patients were identified (31 male, 76 female, mean age 63). Rheumatoid arthritis causing myelopathy was the most common indication for OCF, followed by trauma. Twenty of the patients were lost to follow-up and seven died within the perioperative period. Average follow-up for the remaining 80 patients was 16.4 months. The mean posterior occipitocervical angle (POCA), defined as the angle formed by the intersection of a line drawn tangential to the posterior aspect of the occipital protuberance and a line determined by the posterior aspect of the facets of the third and fourth cervical vertebrae, calculated after stabilization, was 107.1 degrees (range, 72-140 degrees). Reoperation was required in 11 patients (11/107, 10.3%). The mean POCA for the reoperation group was 109.5 degrees (range, 72-123) and was not significantly different than patients not requiring reoperation (106.5, p > 0.05). However, for all pathologies excluding infection as a cause for reoperation, the mean POCA was significantly higher, 115.14 degrees (p = 0.039) (Table 1). Seven patients (6.5%) complained of dysphagia postoperatively with a significantly higher POCA of 115 degrees (p = 0.039). Of these seven patients, six underwent posterior-only procedures. One patient underwent anterior and posterior procedures for a severe kyphotic deformity. The dysphagia resolved in six patients over a mean of 3 weeks (range, 2-4 weeks). One patient, whose surgery was posterior only, re","PeriodicalId":89675,"journal":{"name":"Evidence-based spine-care journal","volume":"5 2","pages":"163-5"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/s-0034-1386756","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32716968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sterile Seroma Resulting from Multilevel XLIF Procedure as Possible Adverse Effect of Prophylactic Vancomycin Powder: A Case Report.","authors":"Jim A Youssef,&nbsp;Douglas G Orndorff,&nbsp;Morgan A Scott,&nbsp;Rachel E Ebner,&nbsp;Allison P Knewitz","doi":"10.1055/s-0034-1386754","DOIUrl":"https://doi.org/10.1055/s-0034-1386754","url":null,"abstract":"<p><p>Study Design Case report. Objective The objective of this study was to present the unusual case of a 59-year-old woman with a reoccurring sterile postoperative seroma. Methods A patient was observed postoperatively for any complications or adverse side effects resulting from an initial multilevel anterior/posterior lumbar fusion surgery where 2 g (1 g combined with the bone graft used for posterolateral fusion and 1 g placed in the soft tissues) of prophylactic vancomycin powder was placed within the soft tissues posteriorly before wound closure. The patient's progress was monitored through 6 months following the initial procedure. Six weeks postoperatively, the patient sustained a fall and had increased pain. Magnetic resonance imaging, computed tomography, and X-rays demonstrated a displaced sacral fracture, a large epidural fluid collection, and severe compression of the thecal sac at the lumbar operative sites (L3-5). Results On the basis of the aforementioned imaging studies and the patient's progressive neurologic deficit, it was apparent at the 6-week follow-up that emergent surgical intervention was necessary. Drainage and examination of an epidural fluid collection along with treatment of a displaced sacral fracture (S1-S2) were performed. The patient had an uneventful postoperative course with resolution of her back pain and neurologic deficit; however, recurrence of the epidural fluid collection requiring serial aspirations confounded the patients' clinical presentation. Conclusions With the recurrent nature of the seroma being unusual, the cause of the fluid collection and formation is undetermined. With lack of bone morphogenetic protein usage, and few confounding variables accountable, an acute allergic response to topical vancomycin powder is a possible etiology. Analysis with larger patient populations comparing postoperative adverse effects of prophylactic vancomycin powder is recommended. </p>","PeriodicalId":89675,"journal":{"name":"Evidence-based spine-care journal","volume":"5 2","pages":"127-33"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/s-0034-1386754","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32786516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Lumbar intervertebral discal cyst: a rare cause of low back pain and radiculopathy. Case report and review of the current evidences on diagnosis and management.","authors":"Francesco Certo,&nbsp;Massimiliano Visocchi,&nbsp;Alessandro Borderi,&nbsp;Claudia Pennisi,&nbsp;Vincenzo Albanese,&nbsp;Giuseppe M V Barbagallo","doi":"10.1055/s-0034-1387806","DOIUrl":"https://doi.org/10.1055/s-0034-1387806","url":null,"abstract":"<p><p>Study Design Case Report and review of the literature. Objective The objective of the article is to report an illustrative case successfully treated by microsurgery and to review the literature on the current evidence on diagnosis and management of lumbar discal cysts. Methods A 43-year-old male patient presented with severe back pain, radiating down to the right leg, as well as with paraesthesias in the right L3 and L4 dermatomes. Magnetic resonance imaging of the lumbar spine revealed an intraspinal, extradural space-occupying lesion at the L3-L4 disc level, causing compression of the neural structures. The lesion was surgically removed and a diagnosis of lumbar discal cyst was made. Postoperatively, symptoms improved and the patient was discharged with no complications. A systematic review of pertinent articles published up to February 2014 was performed. Key articles were searched to identify studies describing the diagnosis and management modalities of lumbar discal cysts and the comparative effectiveness and safety of microsurgery versus endoscopic treatment. Conclusions Discal cysts are rare causes of low back pain and radiculopathy. Few cases have been reported; however, conclusive information about their natural history is not available and the best mode of treatment remains controversial. We submit that lumbar intervertebral disc cysts, with their peculiar radiological and anatomic features, should be considered in the differential diagnosis among rare causes of low back pain and radiculopathy. </p>","PeriodicalId":89675,"journal":{"name":"Evidence-based spine-care journal","volume":"5 2","pages":"141-8"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/s-0034-1387806","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32788539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Microdiscectomy for the treatment of lumbar disc herniation: an evaluation of reoperations and long-term outcomes.","authors":"Alexander Aichmair, Jerry Y Du, Jennifer Shue, Gisberto Evangelisti, Andrew A Sama, Alexander P Hughes, Darren R Lebl, Jayme C Burket, Frank P Cammisa, Federico P Girardi","doi":"10.1055/s-0034-1386750","DOIUrl":"10.1055/s-0034-1386750","url":null,"abstract":"<p><p>Design Retrospective case series. Objective The objective of this study was to assess the reoperation rate after microdiscectomy for the treatment of lumbar disc herniation (LDH) in patients with ≥ 5-year follow-up and identify demographic, perioperative, and outcome-related differences between patients with and without a reoperation. Methods The medical records, operative reports, and office notes of patients who had undergone microdiscectomy at a single institution between March 1994 and December 2007 were reviewed and long-term follow-up was assessed via a telephone questionnaire. Results Forty patients (M:24, F:16) with an average age at surgery of 39.9 ± 12.5 years (range: 18-80) underwent microdiscectomy at the levels L5-S1 (n = 28, 70%), L4-L5 (n = 9, 22.5%), L3-L4 (n = 2, 5.0%), and L1-L2 (n = 1, 2.5%). After an average of 40.4 ± 40.1 months (range: 1-128), 25% of patients (10/40) required further spine surgery related to the initial microdiscectomy. At an average postoperative follow-up of 11.1 ± 4.0 years (range: 5-19), additional symptoms apart from back and leg pain were reported more frequently by patients who underwent a reoperation (p = 0.005). Patient satisfaction was significantly higher in patients who did not undergo a reoperation (p = 0.041). For the Oswestry disability index, pain intensity (p = 0.036), and pain-related sleep disturbances (p = 0.006) were reported to be more severe in the reoperation group. Conclusions Microdiscectomy for the treatment of LDH results in a favorable long-term outcome in the majority of cases. The reoperation rate was higher in our series than reported in previous investigations with shorter follow-up. Although there were no statistically significant pre-/perioperative differences between patients with and without reoperation, our findings suggest a difference in self-reported long-term outcome measures. </p>","PeriodicalId":89675,"journal":{"name":"Evidence-based spine-care journal","volume":"5 2","pages":"77-86"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4174230/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32716461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}