Interlaminar Stabilization for Spinal Stenosis in a Medicare Population
The number of complex fusions performed on Medicare beneficiaries, defined as ≥ age 65, with lumbar spinal stenosis with or without spondylolisthesis has been increasing. Typically, these procedures are longer, more invasive and pose a greater risk for complications. Interlaminar stabilization (ILS) serves as an intermediary between decompression alone and decompression wit h fusion. (Source: The Spine Journal)
Source: The Spine Journal - July 10, 2020 Category: Orthopaedics Authors: Sam Grinberg, Rachel Beth Simon, Christina Dowe, Antonio T. Brecevich, Frank P. Cammisa, Celeste Abjornson Tags: Clinical Study Source Type: research

Undercut macrostructure topography on and within an interbody cage improves biomechanical stability and interbody fusion
Fusion using interbody cages has become a routine procedure to treat instability and degenerative spinal pathologies. An interbody cage can address issues related to height and curvature restoration and correction while providing some inherent stabilisation due to geometry and placement alone. A fusion, however, traditionally requires a bony bridge from level to level through the aperture where a graft material has been placed to ensure long-term biological fixation and clinical success. (Source: The Spine Journal)
Source: The Spine Journal - July 6, 2020 Category: Orthopaedics Authors: William R Walsh, Matthew Pelletier, Dan Wills, Tian Wang, Shaeffer Bannigan, Frank Vizesi Tags: Basic Science Source Type: research

Do rheumatoid arthritis patients have low back pain or radiological lumbar lesions more frequently than the healthy population? –Cross-sectional analysis in a cohort study with age and sex-matched healthy volunteers
Rheumatoid arthritis (RA) can affect the spine; however, the epidemiology of lumbar lesions and/or low back pain (LBP) in RA patients has not been well-studied. (Source: The Spine Journal)
Source: The Spine Journal - July 2, 2020 Category: Orthopaedics Authors: Akinobu Suzuki, Koji Tamai, Shinji Takahashi, Kentaro Yamada, Kentaro Inui, Masahiro Tada, Tadashi Okano, Yuko Sugioka, Tatsuya Koike, Hiroaki Nakamura Tags: Clinical Study Source Type: research

Determination of the Patient Acceptable Symptom State for the Japanese Orthopaedic Association Score in Patients Undergoing Anterior Cervical Discectomy and Fusion for Cervical Spondylotic Myelopathy
The patient acceptable symptom state (PASS) has gained attention as a valuable interpretation tool in spine research. While the PASS for the Japanese Orthopaedic Association (JOA) score has been recently proposed, previous analyses demonstrated a weak discriminative ability for the suggested threshold. (Source: The Spine Journal)
Source: The Spine Journal - July 2, 2020 Category: Orthopaedics Authors: Graham S. Goh, Reuben Chee Cheong Soh, Wai-Mun Yue, Chang-Ming Guo, Seang-Beng Tan, John L. Chen Tags: Clinical Study Source Type: research

Hand grip strength can predict clinical outcomes and risk of falls after decompression and instrumented posterolateral fusion for lumbar spinal stenosis
There has been limited research on the association between hand grip strength (HGS) as one of the diagnostic criteria for sarcopenia and surgical outcomes of lumbar spinal stenosis (LSS). (Source: The Spine Journal)
Source: The Spine Journal - July 2, 2020 Category: Orthopaedics Authors: Ji-Won Kwon, Byung Ho Lee, Soo-Bin Lee, Sahyun Sung, Chang-Uk Lee, Jae-Ho Yang, Moon-Soo Park, Junwoo Byun, Hwan-Mo Lee, Seong-Hwan Moon Source Type: research

Significance of external validation in clinical machine learning: let loose too early?
With great interest, we recently read the article by Karnuta et al. [1], in which the authors describe the development and internal validation of a prediction model for patient resource utilization. They involved 38,070 patients and trained a na ïve Bayes classifier in repeated 10-fold cross validation. Resampled training areas-under-the-curves were 0.880, 0.941, and 0.906. We commend the authors for their generally excellent machine learning (ML) methods and clean execution with sufficient training data. (Source: The Spine Journal)
Source: The Spine Journal - July 1, 2020 Category: Orthopaedics Authors: Victor E. Staartjes, Julius M. Kernbach Tags: Letters to the editor Source Type: research

Response to letter to the editor on “Significance of external validation in clinical machine learning: let loose too early?”
We thank Staartjes and Kernbach for their letter “Significance of External Validation in Clinical Machine Learning: Let Loose Too Early?” in response to our manuscript, “Can a machine learning model accurately predict patient resource utilization following lumbar spinal fusion?” [1] We appreciate the opportunity to further discuss the topi c of machine learning (ML) as it pertains to the clinical context of spine surgery and as it relates to our published work. (Source: The Spine Journal)
Source: The Spine Journal - July 1, 2020 Category: Orthopaedics Authors: Prashant V. Rajan, Jaret M. Karnuta, Heather S. Haeberle, Andrew I. Spitzer, Jonathan L. Schaffer, Prem N. Ramkumar Tags: Letters to the editor Source Type: research

Predictive analytics
The need to predict outcomes in medicine is growing as providers, payers, and patients strive to maximize outcomes, minimize costs and incorporate shared decision making into practice. Coupled with ever more available databases and improved computational ability, one can expect predictive models to flourish [1,2]. Machine learning algorithms offer the promise of improved modeling particularly with nonlinear data and large, complex datasets. However, with these more flexible approaches comes the risk of overfitting one's data thereby making them less useful for generalized usage [3]. (Source: The Spine Journal)
Source: The Spine Journal - July 1, 2020 Category: Orthopaedics Authors: Joseph H. Schwab Tags: Commentary Source Type: research

Secondary fracture prevention: review of recent American Society for Bone and Mineral Research multidisciplinary stakeholder consensus recommendations
Secondary fracture prevention is a cost-effective strategy aimed at reducing the risk of subsequent fractures [1]. However, less than 20% of patients receive such care and this deficiency appears to be worsening [1]. To overcome this treatment gap, many organizations have developed multidisciplinary programs, educational opportunities, and patient advocacy efforts. In addition, the American Society for Bone Mineral Research (ASBMR) has recently produced multidisciplinary stakeholder consensus recommendations for secondary fracture prevention [2]. (Source: The Spine Journal)
Source: The Spine Journal - July 1, 2020 Category: Orthopaedics Authors: Paul A. Anderson, Robert B. Conley Tags: Commentary Source Type: research

Editorial Board
(Source: The Spine Journal)
Source: The Spine Journal - July 1, 2020 Category: Orthopaedics Source Type: research

Table of Contents
(Source: The Spine Journal)
Source: The Spine Journal - July 1, 2020 Category: Orthopaedics Source Type: research

Meetings Calendar
(Source: The Spine Journal)
Source: The Spine Journal - July 1, 2020 Category: Orthopaedics Source Type: research

Association Between Low Back Pain and Body Mass Index in Adult Twins: An analysis of monozygotic and dizygotic twins of the Washington State Twin Registry
Low Back Pain (LBP) is a major contributor to global disability and overall disease burden.1 –3 Debilitating LBP can have negative consequences by restricting work, reducing productivity, and impairing activities of daily living. Thus, insights into the causes, prevention, and treatment of LBP have important public health implications. A variety of causes have been described, such as dege nerative spine change, trauma, and more, however questions remain as LBP appears to be multifactorial.2 Therefore, it is important to identify causal factor(s) of LBP so that preventative measures and targeted therapies can be mobil...
Source: The Spine Journal - June 28, 2020 Category: Orthopaedics Authors: Andrew Liechty, Siny Tsang, Eric Turkheimer, Glen E. Duncan Tags: Clinical Study Source Type: research

Comparison of long-term clinical and radiographic outcomes between alternative-level and all-level fixation unilateral open-door laminoplasty
Titanium mini-plate has been used in unilateral open-door laminoplasty to maintain the open angle of laminae. Previously, both all-level fixation (C3-C7) and alternative-level (C3, C5, C7) unilateral open-door laminoplasty have been proven to have satisfactory clinical outcomes. However, whether they could achieve similar long-term clinical and radiographic efficacy is still questionable. (Source: The Spine Journal)
Source: The Spine Journal - June 28, 2020 Category: Orthopaedics Authors: Zhuang Zhang, Lin-nan Wang, Yue-ming Song, Lei Wang, Hao Liu, Li-min Liu, Peng Xiu, Zhong-jie Zhou Tags: Clinical Study Source Type: research

Impact of Preoperative Weakness and Duration of Symptoms on Health-Related Quality-of-Life Outcomes Following Anterior Cervical Discectomy and Fusion
The majority of patients with preoperative upper extremity weakness show improvements in motor function after anterior cervical discectomy and fusion (ACDF). While numerous studies have examined both the extent and time course to which motor function can be expected to improve, few have shown that these improvements in motor function translate to improved health related quality of life (HRQOL) outcomes. (Source: The Spine Journal)
Source: The Spine Journal - June 27, 2020 Category: Orthopaedics Authors: Kartik Shenoy, Parthik D Patel, Jeffrey M Henstenburg, Jose A Canseco, Chester J Donnally, Joseph K Lee, Christopher K Kepler Tags: Clinical Study Source Type: research

A novel predictive model of intraoperative blood loss in patients undergoing elective lumbar surgery for degenerative pathologies
Intraoperative blood loss (IOBL) is unavoidable during surgery, however high IOBL is associated with increased morbidity and increased risk for requiring allogenic blood transfusion, itself associated with poorer outcomes. (Source: The Spine Journal)
Source: The Spine Journal - June 27, 2020 Category: Orthopaedics Authors: Zach Pennington, Jeff Ehresman, Camilo A. Molina, Andrew Schilling, James Feghali, Sakibul Huq, Ravi Medikonda, A. Karim Ahmed, Ethan Cottrill, Daniel Lubelski, Steven M. Frank, Daniel M. Sciubba Tags: Clinical Study Source Type: research

SMART on FHIR in spine: integrating clinical prediction models into electronic health records for precision medicine at the point of care
Recent applications of artificial intelligence have shown great promise for improving the quality and efficiency of clinical care. Numerous clinical decision support tools exist in today's electronic health records (EHRs) such as medication dosing support, order facilitators (e.g., procedure specific order sets), and point of care alerts. However, less has been done to integrate artificial intelligence (AI)-enabled risk predictors into EHRs despite wide availability of validated risk prediction tools. (Source: The Spine Journal)
Source: The Spine Journal - June 26, 2020 Category: Orthopaedics Authors: Aditya V. Karhade, Joseph H. Schwab, Guilherme Del Fiol, Kensaku Kawamoto Tags: Clinical Study Source Type: research

Distribution of Young's modulus at various sampling points in a human lumbar spine vertebral body
Mathematical modelling for creating computer spine models is one of the basic methods underlying many scientific publications. The accuracy of strength parameters of tissues introduced into such models translates directly into the reliability of obtained results. Experimental determination of Young's modulus (E) in various areas of spongy bone tissue seems to be crucial for creating a reliable spine model without excessive simplifications in the form of a single E value for the whole vertebral body. (Source: The Spine Journal)
Source: The Spine Journal - June 24, 2020 Category: Orthopaedics Authors: Ma łgorzata Barbara Ogurkowska, Anna Błaszczyk Source Type: research

Human Mesenchymal Stem Cells Respond Differentially to Platelet Preparations and Synthesize Hyaluronic Acid in Nucleus Pulposus Extracellular Matrix
In recent years, autologous platelet-rich plasma (PRP) and bone marrow aspirate concentrate (BMAC) have been used as treatments for disc-related pain. A better understanding of the effects of leukocyte-rich (LR) versus leukocyte poor (LP-) PRP on bone marrow derived human mesenchymal stem/progenitor cells (hMSCs) is likely to improve future research studies, clinical practice and care for patients with chronic discogenic back pain. (Source: The Spine Journal)
Source: The Spine Journal - June 18, 2020 Category: Orthopaedics Authors: Ryan C. Dregalla, Yvette Uribe, Marko Bodor Tags: Basic Science Source Type: research

Cervical Epidural Steroid Injections: Incidence and Determinants of Subsequent Surgery
Cervical epidural steroid injections (CESIs) are sometimes used in the management of cervical radicular pain in order to delay or avoid surgery. However, the rate and determinants of surgery following CESIs remain uncertain. (Source: The Spine Journal)
Source: The Spine Journal - June 18, 2020 Category: Orthopaedics Authors: John P. Kleimeyer, Jayme C.B. Koltsov, Matthew W. Smuck, Kirkham B. Wood, Ivan Cheng, Serena S. Hu Tags: Clinical Study Source Type: research

Recent Trends in Medicare Utilization and Reimbursement for Anterior Cervical Discectomy and Fusion
Anterior cervical discectomy and fusion (ACDF) has been considered the gold standard for treating various cervical spine pathologies stemming from cervical degenerative disorders. While cervical artificial disc replacement has emerged as an alternative in select cases, ACDF still remains a commonly performed procedure. (Source: The Spine Journal)
Source: The Spine Journal - June 17, 2020 Category: Orthopaedics Authors: Cesar D Lopez, Venkat Boddapati, Joseph M Lombardi, Zeeshan M Sardar, Marc D Dyrszka, Ronald A Lehman, K Daniel Riew Tags: Clinical Study Source Type: research

Why are patients dissatisfied after spine surgery when improvements in disability and pain are clinically meaningful?
Studies have found that most patients are satisfied after spine surgery, with rates ranging from 53% to 90%. Patient satisfaction appears to be closely related to achieving clinical improvement in pain and disability after surgery. While the majority of the literature has focused on patients who report both satisfaction and clinical improvement in disability and pain, there remains an important sub-population of patients who have clinically relevant improvement but report being dissatisfied with surgery. (Source: The Spine Journal)
Source: The Spine Journal - June 12, 2020 Category: Orthopaedics Authors: Ahilan Sivaganesan, Inamullah Khan, Jacquelyn S. Pennings, Steven G. Roth, Elizabeth Nolan, Emily R. Oleisky, Anthony L. Asher, Mohamad Bydon, Clinton J. Devin, Kristin R. Archer Tags: Clinical Study Source Type: research

Influence of unintended dural tears on postoperative outcomes in lumbar surgery patients: A multicenter observational study with propensity scoring
The number of spinal surgery cases continue to increase worldwide [1,2]. Unintended dural tears (DTs) during surgery are common in spinal surgeries, with an incidence ranging from 2% –20%, and the potential for adverse postoperative events such as headache, nausea, bladder and bowel dysfunction, pseudomeningocele, and meningitis [3,4]. Furthermore, DTs may extend the duration of postoperative hospital stay and raise overall medical costs [5–7]. (Source: The Spine Journal)
Source: The Spine Journal - June 12, 2020 Category: Orthopaedics Authors: Koji Nakajima, Hideki Nakamoto, So Kato, Toru Doi, Yoshitaka Matsubayashi, Yuki Taniguchi, Naohiro Kawamura, Akiro Higashikawa, Yujiro Takeshita, Masayoshi Fukushima, Takashi Ono, Nobuhiro Hara, Seiichi Azuma, Sakae Tanaka, Yasushi Oshima Tags: Clinical Study Source Type: research

Interobserver variance and patient heterogeneity influencing the treatment of grade I spondylolisthesis
Despite well done randomized clinical trials, the role of fusion as an adjunct to decompression for the treatment of patients with degenerative spondylolisthesis remains controversial. There is substantial variation in the use of fusion as well as the techniques used for fusion for a population of patients all described by a single ICD10 code. (Source: The Spine Journal)
Source: The Spine Journal - June 10, 2020 Category: Orthopaedics Authors: Daniel K. Resnick, Bradley T. Schmidt, Eric Momin, Scott J. Hetzel, Zoher Ghogawala Tags: Clinical Study Source Type: research

The mental health impact of providing spine care during COVID-19
The World Health Organization declared the COVID-19 virus outbreak a pandemic on March 12, 2020. While the infection mortality rate is not fully understood at this stage, it appears to be substantially higher than that of other recent pandemics (eg, H1N1 pandemic, mortality rate 0.02%) [1]. Emerging evidence shows that incubation period of COVID-19 is approximately 5 days, and the majority of those who develop symptoms will do so within 11 days of infection [2]. Certain groups, such as the elderly and those with some pre-existing medical conditions (eg, chronic heart or respiratory diseases), appear to be particularly vuln...
Source: The Spine Journal - June 10, 2020 Category: Orthopaedics Authors: Victoria Williamson, Neil Greenberg, Gavin Bowden, Dominique Rothenfluh, Colin Nnadi, Jeremy Reynolds Tags: Editorial Source Type: research

Inter-observer Variance and Patient Heterogeneity Influencing The Treatment of Grade I Spondylolisthesis
Despite well done randomized clinical trials, the role of fusion as an adjunct to decompression for the treatment of patients with degenerative spondylolisthesis remains controversial. There is substantial variation in the use of fusion as well as the techniques used for fusion for a population of patients all described by a single ICD10 code. (Source: The Spine Journal)
Source: The Spine Journal - June 10, 2020 Category: Orthopaedics Authors: Daniel K. Resnick, Bradley T. Schmidt, Eric Momin, Scott J. Hetzel, Zoher Ghogawala Tags: Clinical Study Source Type: research

The Anatomical Mechanism of C5 Palsy After Expansive Open-door Laminoplasty
Expansive open-door laminoplasty (ELAP) has been an effective and safe method with favorable outcomes for treating patients with multilevel cervical spondylotic myelopathy (CSM) and ossification of the posterior longitudinal ligament (OPLL) [1-6]. However, postoperative C5 nerve root palsy (C5 palsy) remains a common complication of ELAP [7, 8]. Postoperative C5 palsy is often defined as an unilateral severe weakness of the deltoid and/or the biceps brachii muscle without any deterioration of myelopathy symptoms [7-14]. (Source: The Spine Journal)
Source: The Spine Journal - June 10, 2020 Category: Orthopaedics Authors: Jianjun Zhao, Qinghao Zhao, Zezheng Liu, Shanxi Deng, Liang Cheng, Weijia Zhu, Rusen Zhang, Runxun Ma, Huibo Yan, Qingchu Li Tags: Basic Science Source Type: research

Comparison of Survival Analysis between Surgical and Non-surgical Treatments in Duchenne Muscular Dystrophy Scoliosis
Duchenne muscular dystrophy (DMD) is a rare X-linked genetic disorder with an incidence in boys of about 200 per million births, and it is associated with progressive weakness of skeletal, respiratory, and cardiac muscles. Children with DMD are usually unable to walk by the age of 9.5 years, and the average survival duration is 19.5 years without ventilation support [1]. Scoliosis is a progressive and significant problem associated with DMD; its rapid progression compromises the respiratory and cardiac functions [2]. (Source: The Spine Journal)
Source: The Spine Journal - June 10, 2020 Category: Orthopaedics Authors: Jae-Ho Yang, Ki-Song Kim, Gi-Hoon Lee, Hak-Sun Kim Tags: Clinical Study Source Type: research

Comparison of the Stopping Opioids after Surgery (SOS) score to preoperative morphine milligram equivalents (MME) for prediction of opioid prescribing after lumbar spine surgery
: Reliable estimation of the likelihood for prolonged postoperative opioid use may aid targeted interventions for high-risk patients. Previous studies have recommended differing methodologies for prediction of sustained postoperative opioid use. (Source: The Spine Journal)
Source: The Spine Journal - June 10, 2020 Category: Orthopaedics Authors: Aditya V. Karhade, Joseph H. Schwab, Mitchel B. Harris, Andrew J. Schoenfeld Source Type: research

Fusion rate for stand-alone lateral lumbar interbody fusion: a systematic review
: Lateral lumbar interbody fusion (LLIF) is used to treat multiple conditions, including spondylolisthesis, degenerative disc disorders (DDD), adjacent segment disease (ASD), and degenerative scoliosis. While many advocate for posterior fixation with LLIF, stand-alone LLIF is increasingly being performed. Yet the fusion rate for stand-alone LLIF is unknown. (Source: The Spine Journal)
Source: The Spine Journal - June 10, 2020 Category: Orthopaedics Authors: Mustfa K. Manzur, Michael E. Steinhaus, Sohrab S. Virk, Bridget Jivanelli, Avani Vaishnav, Steven McAnany, Todd J. Albert, Sravisht Iyer, Catherine Himo Gang, Sheeraz A. Qureshi Source Type: research

Recent Trends in Medicare Utilization and Reimbursement for Lumbar Spine Fusion and Discectomy Procedures
Understanding the scope of the volume and costs of lumbar fusions and discectomy procedures, as well as identifying significant trends within the Medicare system, may be beneficial in enhancing cost-efficiency and care delivery. However, there is a paucity of studies which analyze recent trends in lumbar fusion volume, utilization, and reimbursements. (Source: The Spine Journal)
Source: The Spine Journal - June 9, 2020 Category: Orthopaedics Authors: Cesar D Lopez, Venkat Boddapati, Joseph M Lombardi, Nathan J Lee, Comron Saifi, Marc Dyrszka, Zeeshan Sardar, Lawrence G Lenke, Ronald A Lehman Source Type: research

Variability among Methods and Timing of Pain Assessment Tools for Tracking Improvement of Lumbar Stenosis Patients after Surgery
Many different pain and functional outcomes are used to determine progress after surgical intervention for Lumbar Spinal Stenosis (LSS); it is unknown how these different outcomes correlate, or whether timing of pain measurement is important. (Source: The Spine Journal)
Source: The Spine Journal - June 9, 2020 Category: Orthopaedics Authors: Christy Tomkins-Lane, Patricia Z. Zheng, Ruopeng Sun, Matthew Smuck Tags: Clinical Study Source Type: research

Perioperative ischemic optic neuropathy in spinal fusion surgery: validating a predictive scoring system
The objective of this study was to externally validate the model using subjects in a longitudinal medical claims database, which has the advantage of longer term follow-up to more accurately identify pre-existing diagnoses and ION. (Source: The Spine Journal)
Source: The Spine Journal - June 5, 2020 Category: Orthopaedics Authors: Heather E. Moss, Lan Xiao, Shikhar H. Shah, Yi-Fan Chen, Charlotte Joslin, Steven Roth Source Type: research

Peri-operative ischemic optic neuropathy in spinal fusion surgery: Validating a predictive scoring system.
The objective of this study was to externally validate the model using subjects in a longitudinal medical claims database, which has the advantage of longer term follow-up to more accurately identify pre-existing diagnoses and ION. (Source: The Spine Journal)
Source: The Spine Journal - June 5, 2020 Category: Orthopaedics Authors: Heather E. Moss, Lan Xiao, Shikhar H. Shah, Yi-Fan Chen, Charlotte Joslin, Steven Roth Source Type: research

Outcomes of stand-alone anterior lumbar interbody fusion of L5 –S1 using a novel implant with anterior plate fixation
Stand-alone anterior lumbar interbody fusion (ALIF) is increasingly performed to treat various spine pathologies [1-4]. Recent ALIF implant designs demonstrated excellent fusion rates [5,6] with minimal complications [4,6,7]. Compared with posterior (PLIF) or transforaminal (TLIF) lumbar interbody fusion, stand-alone ALIF has similar fusion rates [8], with the advantages of reduced blood loss, operative time and postoperative pain [9]. (Source: The Spine Journal)
Source: The Spine Journal - June 3, 2020 Category: Orthopaedics Authors: Marc Szadkowski, Henri d'Astorg, Haroun Bouhali, Ivan Aleksic, Sonia Ramos-Pascual, Vincent Fi ère Tags: Clinical Study Source Type: research

Outcomes of stand-alone Anterior Lumbar Interbody Fusion of L5-S1 using a novel implant with anterior plate fixation
Stand-alone anterior lumbar interbody fusion (ALIF) is increasingly performed to treat various spine pathologies [1-4]. Recent ALIF implant designs demonstrated excellent fusion rates [5, 6] with minimal complications [4, 6, 7]. Compared to posterior (PLIF) or transforaminal (TLIF) lumbar interbody fusion, stand-alone ALIF has similar fusion rates [8], with the advantages of reduced blood loss, operative time and postoperative pain [9]. (Source: The Spine Journal)
Source: The Spine Journal - June 3, 2020 Category: Orthopaedics Authors: Marc Szadkowski, Henri d'Astorg, Ivan Aleksic, Sonia Ramos-Pascual, Haroun Bouhali, Vincent Fi ère Tags: Clinical Study Source Type: research

Classifying Chronic Opioid Use Before Spine Surgery: Comparison of Self-Report and Prescription Drug Monitoring Program (PDMP) Reporting
The opioid epidemic has been declared a public health emergency claiming ∼400,000 deaths from 1999 to 2017[1]. Studies have consistently demonstrated an association between preoperative chronic opioid use and poor patient outcomes after spine surgery[2,3]. Thus, accurate identification of preoperative opioid use is critical in risk stratification. In addition to self-r eported data, a patient's opioid use can be quantified using insurance databases, pharmacy records, medical records, and state-run prescription drug monitoring programs (PDMP1)[2-5]. (Source: The Spine Journal)
Source: The Spine Journal - June 2, 2020 Category: Orthopaedics Authors: Jacquelyn S. Pennings, Inamullah Khan, Jeffrey M. Hills, Rogelio A. Coronado, Clinton J. Devin, Kristin R. Archer Tags: Letters to the editor Source Type: research

Criteria for Success after Surgery for Cervical Radiculopathy; Estimates for a Substantial Amount of Improvement in Core Outcome Measures
The last decade's advances in surgical technique and equipment have increased the effectiveness and safety of surgical intervention for cervical degenerative radiculopathy (CDR) making operations for disc herniation and spondylotic foraminal stenosis high volume procedures [1, 2]. Since surgery is a costly treatment with potential risks, there has been a need to define criteria for substantial benefit to facilitate doctor-patient communication and assess quality of surgical care [3, 4]. In this way, the introduction of patient-reported outcome measures (PROMs) [5] and the concept of minimal important change (MIC) have been...
Source: The Spine Journal - June 2, 2020 Category: Orthopaedics Authors: Christer Mj åset, John-Anker Zwart, Caroline M.W. Goedmakers, Timothy R. Smith, Tore K. Solberg, Margreth Grotle Tags: Clinical Study Source Type: research

Spine patients demystified: What are the predictive factors of poor surgical outcome in patients after elective cervical and lumbar spine surgery?
Pre-existing comorbid psychiatric mood disorders are a known risk factor for impaired health-related quality of life and poor long-term outcomes after spine surgery. (Source: The Spine Journal)
Source: The Spine Journal - June 2, 2020 Category: Orthopaedics Authors: Jos é H Jiménez-Almonte, Gavin S Hautala, Eric J Abbenhaus, Jonathan D Grabau, Ifeanyi N Nzegwu, Syed K Mehdi, Zeeshan M Akhtar, Boshen Liu, Cale A Jacobs, R.Carter Cassidy Tags: Clinical Study Source Type: research

The use of triangular implants to enhance sacropelvic fixation: a finite element investigation
Long thoracolumbar fixation and fusion have become a consolidated treatment for severe spinal disorders. Concomitant sacropelvic fixation with S2 alar-iliac (S2AI) screws is frequently performed to limit instrumentation failure and pseudarthrosis at the lumbosacral junction. (Source: The Spine Journal)
Source: The Spine Journal - June 2, 2020 Category: Orthopaedics Authors: Matteo Panico, Ruchi D. Chande, Derek P. Lindsey, Ali Mesiwala, Tomaso Maria Tobia Villa, Scott A. Yerby, Marco Brayda-Bruno, Fabio Galbusera Tags: Basic Science Source Type: research

The Effect of Age and Injury Severity on Clinical Prediction Rules for Ambulation Among Individuals with Spinal Cord Injury
While several models for predicting independent ambulation early after traumatic spinal cord injury (SCI) based upon age and specific motor and sensory level findings have been published and validated, their accuracy, especially in individual American Spinal Injury Association [ASIA] Impairment Scale (AIS) classifications, has been questioned. Further, although age is widely used in prediction rules, its role and possible modifications have not been adequately evaluated until now. (Source: The Spine Journal)
Source: The Spine Journal - June 1, 2020 Category: Orthopaedics Authors: Einat Engel-Haber, Gabi Zeilig, Simi Haber, Lynn Worobey, Steven Kirshblum Tags: Clinical Study Source Type: research

Relationship of the Character of Rod Fractures on Outcomes Following Long Thoracolumbar Fusion to the Sacrum for Adult Spinal Deformity
Rod fractures (RF) and pseudarthrosis are a frequent occurrence after adult spinal deformity (ASD) surgery and may be problematic. However, not all rod fractures signal nonunion and cause clinical concern. An improved understanding of the sequelae after rod fracture occurrence is valuable for further management. (Source: The Spine Journal)
Source: The Spine Journal - June 1, 2020 Category: Orthopaedics Authors: Thamrong Lertudomphonwanit, Keith H. Bridwell, Michael P. Kelly, Prachya Punyarat, Alekos Theologis, Brenda A. Sides, Munish C. Gupta Tags: Clinical Study Source Type: research

Addressing a National Crisis: The Spine Hospital and Department's Response to the COVID-19 Pandemic in New York City
In a very brief period, the COVID-19 pandemic has swept across the planet leaving governments, societies and healthcare systems unprepared and under-resourced. New York City now represents the global viral epicenter with roughly one third of all mortalities in the United States. To date, our hospital has treated thousands of COVID-19 positive patients and sits at the forefront of the United States response to this pandemic. The goal of this paper is to share the lessons learned by our spine division during a crisis when hospital resources and personnel are stretched thin. (Source: The Spine Journal)
Source: The Spine Journal - May 30, 2020 Category: Orthopaedics Authors: JM Lombardi, T Bottiglieri, N Desai, KD Riew, V Boddapati, M Weller, C Bourgois, S McChrystal, RA Lehman Tags: Perspective Source Type: research

Vertebral bone quality score predicts fragility fractures independently of bone mineral density
Current evidence suggests that dual-energy X-ray absorptiometry (DXA) scans, the conventional method defining osteoporosis, is underutilized and, when used, may underestimate patient risk for skeletal fragility. It has recently been suggested that other imaging modalities may better estimate bone quality, such as the magnetic resonance imaging (MRI)-based vertebral bone quality (VBQ) score which also may assess vertebral compression fracture risk in patients with spine metastases. (Source: The Spine Journal)
Source: The Spine Journal - May 28, 2020 Category: Orthopaedics Authors: Jeff Ehresman, Andrew Schilling, Xinghai Yang, Zach Pennington, A. Karim Ahmed, Ethan Cottrill, Daniel Lubelski, Majid Khan, Kendall F. Moseley, Daniel M. Sciubba Source Type: research

Biomechanical contribution of spinal structures to stability of the lumbar spine – Novel biomechanical insights.
The contribution of anatomical structures to the stability of the spine is of great relevance for diagnostic, prognostic and therapeutic evaluation of spinal pathologies. Although a plethora of literature is available, the contribution of anatomical structures is still not well understood. (Source: The Spine Journal)
Source: The Spine Journal - May 28, 2020 Category: Orthopaedics Authors: Jonas Widmer, Fr édéric Cornaz, Gita Scheibler, José Miguel Spirig, Jess G. Snedeker, Mazda Farshad Tags: Basic Science Source Type: research

The relationship between preoperative cervical sagittal balance and clinical outcome of laminoplasty treated cervical ossification of the posterior longitudinal ligament patients
Laminoplasty is a common surgical method used to treat patients with cervical ossification of the posterior longitudinal ligament (OPLL). Although laminoplasty is preferred over traditional laminectomy, the factors affecting the complications and outcomes are unclear. Recently, sagittal balance indexes have been revealed to be predictors of clinical outcomes in patients with cervical degenerative diseases, but their relationships with laminoplasty-treated OPLL outcomes remains unknown. (Source: The Spine Journal)
Source: The Spine Journal - May 28, 2020 Category: Orthopaedics Authors: Chen Xu, Yizhi Zhang, Minjie Dong, Huiqiao Wu, Wenchao Yu, Ye Tian, Peng Cao, Huajiang Chen, Xinwei Wang, Xiaolong Shen, Yang Liu, Wen Yuan Tags: Clinical Study Source Type: research

Volume-Outcome Relationship in Halo Vest Utilization for C2 Fractures
The prevalence of C2 fractures has increased in recent years. The treatment of these fractures include halo-vest immobilization (HVI), rigid cervical collar, or spinal fusion. There is controversy regarding the management of these fractures with different institutions having their own protocols based on individualized experience. The volume-outcome relationship of HVI use for C2 fractures has not been studied. Evaluation of such relationships are important as they suggest that patients may benefit from referral to and treatment at high-volume institutions. (Source: The Spine Journal)
Source: The Spine Journal - May 28, 2020 Category: Orthopaedics Authors: Etka Kurucan, Aron Sulovari, Caroline Thirukumaran, Alexander Greenstein, Robert Molinari, Addisu Mesfin Source Type: research

Editorial Board
(Source: The Spine Journal)
Source: The Spine Journal - May 20, 2020 Category: Orthopaedics Source Type: research

Table of Contents
(Source: The Spine Journal)
Source: The Spine Journal - May 20, 2020 Category: Orthopaedics Source Type: research

Meetings Calendar
(Source: The Spine Journal)
Source: The Spine Journal - May 20, 2020 Category: Orthopaedics Source Type: research