Journal of spinal disorders & techniques Impact Factor & Information

Publisher: Lippincott, Williams & Wilkins

Journal description

Current impact factor: 2.20

Impact Factor Rankings

2015 Impact Factor Available summer 2016
2014 Impact Factor 2.202
2013 Impact Factor 1.888
2012 Impact Factor 1.767
2011 Impact Factor 1.503
2010 Impact Factor 1.333
2009 Impact Factor 1.206
2008 Impact Factor 1.365
2007 Impact Factor 1.303
2006 Impact Factor 1.11
2005 Impact Factor 1.583
2004 Impact Factor 1.121
2003 Impact Factor 0.736
2002 Impact Factor 0.728

Impact factor over time

Impact factor

Additional details

5-year impact 2.04
Cited half-life 9.10
Immediacy index 0.28
Eigenfactor 0.01
Article influence 0.75
Other titles Journal of spinal disorders & techniques (Online), Journal of spinal disorders & techniques, Journal of spinal disorders and techniques, Journalofspinaldisorders &
ISSN 1539-2465
OCLC 49377308
Material type Document, Periodical, Internet resource
Document type Internet Resource, Computer File, Journal / Magazine / Newspaper

Publisher details

Lippincott, Williams & Wilkins

  • Pre-print
    • Author can archive a pre-print version
  • Post-print
    • Author cannot archive a post-print version
  • Restrictions
    • 12 months embargo
  • Conditions
    • Some journals have separate policies, please check with each journal directly
    • Pre-print must be removed upon acceptance for publication
    • Post-print may be deposited in personal website or institutional repository
    • Publisher's version/PDF cannot be used
    • Must include statement that it is not the final published version
    • Published source must be acknowledged with full citation
    • Set statement to accompany deposit
    • Must link to publisher version
    • NIH authors will have their accepted manuscripts transmitted to PubMed Central on their behalf after a 12 months embargo (see policy for details)
    • Wellcome Trust and HHMI authors will have their accepted manuscripts transmitted to PubMed Central on their behalf after a 6 months embargo (see policy for details)
    • Publisher last reviewed on 19/03/2015
  • Classification
    ​ yellow

Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: Purpose: Cervical spondylotic myelopathy (CSM) is a condition resulting from cervical stenosis. Manifestations of CSM include paresthesia in the extremities, loss of fine motor skills, balance problems, and bowel and bladder dysfunction in advanced disease. Laminoplasty is one surgical treatment option. The goal of laminoplasty is to reposition the laminae to expand the spinal canal, allowing the spinal cord to migrate posteriorly. There are various laminoplasty techniques; the main ones being open-door laminoplasty and double-door laminoplasty. This manuscript demonstrates a double-door laminoplasty otherwise known as a "French-door" laminoplasty discusses the indications and outcomes of this procedure. Methods: The double-door laminoplasty creates an opening in the midline of the spinous processes and a symmetrical expansion with hinges on both laminae. Bilateral troughs are drilled on each laminae using a bur, and opened liked a French-door, allowing the spinal cord to move posteriorly in the enlarged spinal canal. The space between the gapped laminae are then stabilized by allograft. Results: This manuscript presents the case of a 56-year-old man with CSM caused by multilevel cervical stenosis. The patient had classic signs and symptoms of CSM including problems with fine motor skills and walking difficulty. The video demonstrates the spinal cord decompression achieved with the French-door technique from C4 to C6 with a dome laminectomy at C3. Conclusions: There are many surgical treatments for cervical stenosis including anterior cervical discectomy and fusions and posterior procedures such as laminoplasty or laminectomy and fusion. The indications and technical pearls for French-door laminoplasty are presented as an effective option for the treatment of multilevel cervical stenosis.
    Journal of spinal disorders & techniques 09/2015; DOI:10.1097/BSD.0000000000000323
  • Journal of spinal disorders & techniques 09/2015; 28(8):271-274. DOI:10.1097/BSD.0000000000000322
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    ABSTRACT: As the US health care system transitions toward a value-based system, providers and health care organizations will have to closely scrutinize their current processes of care. To do this, a value chain analysis can be performed to ensure that only the most efficient steps are followed in patient care. Ultimately this will produce a higher quality or equal quality product for less cost by eliminating wasteful steps along the way.
    Journal of spinal disorders & techniques 09/2015; DOI:10.1097/BSD.0000000000000319
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    ABSTRACT: Systematic review and meta-analysis. To evaluate anterior decompression and fusion compared with posterior laminoplasty when treating multilevel cervical compressive myelopathy. Satisfactory results have been reported with both anterior decompression and fusion and posterior laminoplasty in the treatment of multilevel cervical compressive myelopathy. However, which method is safer and more effective remains controversial. MEDLINE, EMASE, and the Cochrane library databases were searched for relevant controlled studies up to December 2014 that compared anterior decompression and fusion with posterior laminoplasty for the treatment of multilevel cervical compressive myelopathy. The following outcome measures were extracted for analysis: preoperative and postoperative Japanese Orthopedic Association scores, neurological recovery rate, preoperative and postoperative overall Cobb angle, blood loss, operative time, surgical complications, and reoperation rate. A total of 19 studies representing 1279 patients were included in this analysis. The results indicated that anterior decompression and fusion was associated with better postoperative neurological function (P=0.001), a higher recovery rate (P<0.01), and better cervical alignment (P<0.01) than posterior laminoplasty in the treatment of multilevel cervical compressive myelopathy. However, anterior decompression and fusion was also associated with higher postoperative complication (P<0.01) and reoperation (P<0.01) rates. Intraoperative blood loss (P<0.01) was higher and operative times (P<0.01) were longer in the anterior decompression and fusion group compared with the posterior laminoplasty group. On the basis of this meta-analysis, anterior decompression and fusion is associated with better recovery of neurological function, better postoperative cervical alignment, higher postoperative complication and reoperation rates, more blood loss, and longer operative times compared with posterior laminoplasty.
    Journal of spinal disorders & techniques 08/2015; DOI:10.1097/BSD.0000000000000317
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    ABSTRACT: Venous thromboembolic embolism (VTE) is a potentially serious and life-threatening complication in spine surgery. However, VTE incidence and prophylaxis in spine surgery remains controversial. Current recommendations for VTE prophylaxis address "spine surgery" as a single broad category and mainly consider patient factors when determining risk. We performed a literature review to determine the varying VTE and bleeding risks within spine surgery to develop an individualized prophylactic algorithm. Our review suggests that the current guidelines on VTE prophylaxis for spine surgery from NASS and ACCP are suboptimal. Consideration of (1) patient-related VTE risks, (2) procedure-related VTE risks, and (3) the risk of neurological compromise from bleeding complications will more appropriately balance safety and effectiveness when choosing a VTE prophylaxis method. To better individualize VTE prophylaxis, we have developed the VTE Prophylaxis Risk/Benefit Score that considers this currently available best evidence to arrive at a recommendation for the most appropriate form of VTE prophylaxis. This algorithm informs the surgeon to help make a more nuanced and individualized determination of prophylaxis.
    Journal of spinal disorders & techniques 08/2015; DOI:10.1097/BSD.0000000000000321
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    ABSTRACT: Retrospective review. To review the feasibility of a posterior-only approach for instrumented reconstruction in lumbar burst fractures. Burst fractures of the lumbar spine have been treated through a variety of techniques, including anterior, posterior, or combined approaches. Here we review series of patients undergoing posterior-only transpedicular corpectomy with instrumented fusion for traumatic lumbar burst fracture. All patients treated at the Los Angeles County+University of Southern California (LAC+USC) Medical Center who had sustained traumatic lumbar burst fractures from February 2005 to February 2014 were reviewed. A total of 178 traumatic lumbar burst fractures were identified of which 89 required operative intervention. Of those 89 operations, 7 patients underwent posterior-only approach for transpedicular corpectomy. Levels operated on were at L1 (4 patients), L2 (1 patient), and L4 (2 patients). The mean age was 35 years of age (range, 21-56 y), and mechanism of injury was either motor vehicle accident (5 patients) or fall (2 patients). Initial neurological examination was American Spinal Injury Association (ASIA) B in 3 patients, ASIA D in 3 patients, and 1 patient was neurologically intact. Mean thoracolumbar injury classification and severity score on presentation was 6.4 (range, 5-8), whereas the mean load sharing classification score was 7.4 (range, 7-9). Of patients who were not immediately lost to follow-up on hospital discharge, mean clinical follow-up was 45.3 months (range, 18.8-68.6 mo), whereas mean radiographic follow-up was 28.8 months (range, 1.3-63.6 mo). At the last known radiographic follow-up, no patient had gross hardware fracture, pseudoarthrosis, or adjacent segment disease. One patient with the longest radiographic follow-up of 63.6 months was noted to have some minimal subsidence of his cage with no other change in his other hardware. A posterior-only approach for transpedicular corpectomy and instrumented fusion is a viable treatment option for lumbar burst fracture which allows for reconstruction of the anterior column while avoiding many of the risks and complications associated with an anterior or combined approach.
    Journal of spinal disorders & techniques 08/2015; DOI:10.1097/BSD.0000000000000312
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    ABSTRACT: Modern computing power has given us the ability to approach statistical questions in a manner which was previously impossible because of the time-consuming nature of the calculations required. Computer power has enabled the use of Bayesian inference techniques, based on 18th century theory, to frame statistical questions in probability.
    Journal of spinal disorders & techniques 08/2015; DOI:10.1097/BSD.0000000000000320
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    ABSTRACT: In vitro cadaveric biomechanical study. To assess revision pullout strength of novel anchored screws (AS) versus conventional larger diameter traditional pedicle screws (TPS) in an osteoporotic model. Pedicle screws are the most ubiquitous method of treating spinal pathologies requiring lumbar fusion. Although these screws are effective in providing 3-column stabilization of the spine, revision surgeries are occasionally necessary, particularly for geriatric and osteoporotic populations. Innovative technologies should be tested to ensure continued improvement in revision techniques. For 4 specimens at L2-L5 (T-score=-3.6±0.54), 6.5-mm-diameter TPS were inserted into left and right pedicles and were pulled out; revision screws were then inserted. Polyether-ether-ketone anchors, designed to expand around a 6.5-mm screw, were inserted into all left pedicles. On the contralateral side, 7.5-mm-diameter TPS were inserted at L2-L3, and 8.5-mm-diameter TPS at L4-L5. Pullout testing was performed at 10 mm/min. The maximum pullout strength and insertion forces were recorded. The initial average pullout force (6.5-mm screw) was 837 N (±329 N) and 642 N (±318 N) in L2-L3 and L4-L5 left pedicles, and 705 N (±451 N) and 779 N (±378 N) in L2-L3 and L4-L5 right pedicles, respectively. Comparison of revision pullout forces versus initial pullout forces revealed the following: 87% and 63% for AS in L2-L3 and L4-L5 left pedicles, respectively; 56% for 7.5-mm and 93% for 8.5-mm TPS in L2-L3 and L4-L5 right pedicles, respectively. Anchor sleeves with 6.5-mm-diameter pedicle screws provided markedly higher resistance to screw pullout than 7.5-mm-diameter revision screws and fixation statistically equivalent to 8.5-mm-diameter screws, possibly because of medial-lateral expansion within the vertebral space and/or convex filling of the pedicle. AS results had the lowest SD, indicating minimal variability in bone-screw purchase.
    Journal of spinal disorders & techniques 08/2015; DOI:10.1097/BSD.0000000000000313
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    ABSTRACT: Prospective study. The purpose of this study was to compare the long-term clinical and radiologic outcomes of hybrid surgery (HS) and 2-level anterior cervical discectomy and fusion (2-ACDF) in patients with 2-level cervical disk disease. In a previous study with a 2-year follow-up, HS was shown to be superior to 2-ACDF, with a better Neck Disability Index (NDI) score, less postoperative neck pain, faster C2-C7 range of motion (ROM) recovery, and less adjacent ROM increase. Between 2004 and 2006, 40 patients undergoing 2-level cervical disk surgery at our hospital were identified as 2-level degenerative disk disease. Forty patients were included in the previous study; 35 patients were followed up for 5 years. Patients completed the NDI and graded their pain intensity before surgery and at routine postoperative until 5 years. Dynamic cervical radiographs were obtained before surgery and at routine postoperative intervals and the angular ROM for C2-C7 and adjacent segments was measured. The HS group had better NDI recovery until 3 years after surgery (P<0.05). Postoperative neck pain was lower in the HS group at 1 and 3 years after surgery (P<0.05), but arm pain relief was not differently relieved. The HS group showed more angular ROM for C2-C7 at 2 and 3 years after surgery. The superior adjacent segment ROM showed hypermobility in the 2-ACDF group and hypomobility in the HS group at all follow-up periods without statistically significance, but the inferior adjacent segment ROM differed significantly (P<0.05). HS is superior to 2-ACDF; it leads to better NDI recovery, less postoperative neck pain, faster C2-C7 ROM recovery, and less adjacent ROM increase over a 2-year follow-up, but these benefits of HS become similar to those of 2-ACDF with 5 years of follow-up.
    Journal of spinal disorders & techniques 08/2015; DOI:10.1097/BSD.0000000000000316
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    ABSTRACT: Degenerative spondylolisthesis (DS) is one of the more commonly encountered spine conditions. The diagnosis of DS has changed little in the last 30 years. However, there has been an evolution in the treatment of this disease entity. There have been several landmark papers that helped govern our treatment. These helped serve as the basis for the treatment arms of the Spine Patient Outcomes Research Trial (SPORT), which offers the highest quality evidence to date. Although few would argue that the fusion of the diseased segment appears to offer the best and most durable results, treatment of this disease is best tailored to the individual. Fusion may offer the best results in the young active patient, but the same results may never become evident in the medically infirm patient. Laminectomy or unilateral laminoforaminotomy still plays a role in disease treatment. This review will focus on the diagnosis and the treatment of DS as well as discuss the author's preferred treatment of this disease.
    Journal of spinal disorders & techniques 07/2015; 28(7). DOI:10.1097/BSD.0000000000000298
  • Journal of spinal disorders & techniques 07/2015; 28(7). DOI:10.1097/BSD.0000000000000303
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    ABSTRACT: Our understanding of the pathophysiological processes that comprise the early secondary phases of spinal cord injury such as spinal cord ischemia, cellular excitotoxicity, ionic dysregulation, and free-radical mediated peroxidation is far greater now than ever before, thanks to substantial laboratory research efforts. These discoveries are now being translated into the clinical realm and have led to targeted upfront medical management with a focus on tissue oxygenation and perfusion and include avoidance of hypotension, induction of hypertension, early transfer to specialized centers, and close monitoring in a critical care setting. There is also active exploration of neuroprotective and neuroregenerative agents; a number of which are currently in late stage clinical trials including minocycline, riluzole, AC-105, SUN13837, and Cethrin. Furthermore, new data have emerged demonstrating that the timing of spinal cord decompression after injury impacts recovery and that early decompression leads to significant improvements in neurological recovery. With this review we aim to provide a concise, clinically relevant and up-to-date summary of the topic of acute spinal cord injury, highlighting recent advancements and areas where further study is needed.
    Journal of spinal disorders & techniques 07/2015; 28(6):202-210. DOI:10.1097/BSD.0000000000000287
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    ABSTRACT: Prospective study. To investigate the efficacy of transcranial electrically stimulated muscle evoked potentials (TcE-MsEPs) for predicting postoperative segmental upper extremity palsy following cervical laminoplasty. Postoperative segmental upper extremity palsy, especially in the deltoid and biceps (so-called C5 palsy), is the most common complication following cervical laminoplasty. Some papers have reported that postoperative C5 palsy cannot be predicted by TcE-MsEPs, although others have reported that it can be predicted. This study included 160 consecutive cases that underwent open door laminoplasty, and TcE-MsEP monitoring was performed in the biceps brachii, triceps brachii, abductor digiti minimi, tibialis anterior and abductor hallucis. A more than 50% decrease in the wave amplitude was defined as an alarm point. According to the monitoring alarm, interventions were performed, which include steroid administration, foraminotomies etc. Postoperative deltoid and biceps palsy occurred in five cases. Among the 155 cases without segmental upper extremity palsy, there were no monitoring alarms. Among the five deltoid and biceps palsy cases, three case had significant wave amplitude decrease in the biceps during surgery and palsy occurred when the patients awoke from anesthesia (acute type). In the other two cases where the palsy occurred two days after the operation (delayed type), there were no significant wave decreases. In all of the cases, the palsy was completely resolved within 6 months. The majority of C5 palsies have been reported to occur several days following surgery, but some of them have been reported to occur immediately after surgery. Our results demonstrated that TcE-MsEPs can predict the acute type, although the delayed type cannot be predicted. A more than 50% wave amplitude decrease in the biceps is useful to predict acute type segmental upper extremity palsy. Further examination about the interventions for monitoring alarm will be essential for preventing palsy.This is an open-access article distributed under the terms of the Creative Commons Attribution-Non Commercial-No Derivitives License 4.0 (CCBY-NC-ND), where it is permissible to download and share the work provided it is properly cited. The work cannot be changed in any way or used commercially.
    Journal of spinal disorders & techniques 07/2015; DOI:10.1097/BSD.0000000000000311
  • Journal of spinal disorders & techniques 07/2015; 28(6):199-201. DOI:10.1097/BSD.0000000000000300
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    ABSTRACT: Retrospective review of prospectively collected data. To determine why artificial disc replacements (ADRs) fail by examining results of 91 patients in FDA studies performed at a single Investigational Device Exemption (IDE) site with minimum two-year follow-up. Patients following lumbar ADR generally achieve their 24-month follow-up results at three months postoperative. Every patient undergoing ADR at one IDE site by two surgeons was evaluated for clinical success. Failure was defined as less than 50% improvement in ODI and VAS or any additional surgery at index or adjacent spine motion segment. Three ADRs were evaluated: Maverick™ (M) 25 patients, Charité™ (C) 31 patients, Kineflex™(K) 35 patients. All procedures were one-level operations performed at L4-5 or L5-S1. Demographics and inclusion/exclusion criteria were similar and will be discussed. Overall clinical failure occurred in 26%, (24 of 91 patients) at two-year follow up. Clinical failure occurred in: (M) 28%, (7 of 25 patients); (C) 39%, (12 of 31 patients); (K) 14%, (5 of 35 patients). Causes of failure included facet pathology, 50% of failure patients (12 of 24). Implant complications occurred in 5% of total patients and 21% of failure patients (5 of 24). Only five patients went from a success to failure after three months. Only one patient went from a failure to success after a facet rhizotomy one year after ADR. Seventy-four percent of patients after ADR met strict clinical success after two-year follow-up. The clinical success verses failure rate did not change from their three-month follow-up in 85 of the 91 patients (93%). Overall clinical success may be improved most by patient selection and implant type.
    Journal of spinal disorders & techniques 06/2015; DOI:10.1097/BSD.0000000000000310
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    ABSTRACT: Injuries to the cervical spine in pediatric patients are uncommon. A missed injury can have devastating consequences in this age group. Due to the lack of routine in diagnosis and management of pediatric cervical spine injuries (PCSI), each of these cases represents a logistic and personal challenge. By means of clinical cases we demonstrate key points in diagnostics and treatment of pediatric spine injuries. We highlight typical pediatric injury patterns and more adult-like injuries. The most common cause of injury is blunt trauma. There is an age related pattern of injuries in pediatric patients. Children under the age of eight frequently sustain ligamentous injuries in the upper cervical spine. After the age of eight, the biomechanics of the cervical spine are similar to adults, and therefore, bony injuries of the subaxial cervical spine are most likely to occur. Clinical presentation of PCSI is heterogeneous. Younger children can neither interpret nor communicate neurologic abnormalities, which make timely and accurate diagnosis difficult. Plain radiographs are often mis-interpreted. We find different types of injuries at different locations, because of different biomechanical properties of the immature spine. We outline that initial management is crucial for long-term outcome. Knowledge of biomechanical properties and radiographic presentation of the immature spine can improve the awareness for PCSI. Diagnosis and management of pediatric patients after neck trauma can be demanding. IV.
    Journal of spinal disorders & techniques 06/2015; 28(7). DOI:10.1097/BSD.0000000000000307