Analysis of Revision Surgery of Microsurgical Lumbar Discectomy.
Authors: Inada T, Nishida S, Kawaoka T, Takahashi T, Hanakita J Abstract Study Design: A retrospective study. Purpose: Our objectives were to determine the association between the pathological changes of disc herniation and the interval between primary and revision surgeries and to investigate the frequency and site of the dural laceration in the primary and revision surgeries. Overview of Literature: Among 382 patients who underwent microsurgical lumbar discectomy, we investigated 29 who underwent revision surgery to analyze recurrent herniation pathologies and complications to determine the manner in whic...
Source: Asian Spine Journal - March 7, 2018 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Influence of Distal Fusion Level on Sagittal Spinopelvic and Spinal Parameters in the Surgical Management of Adolescent Idiopathic Scoliosis.
This study aimed to investigate the influence of distinct distal fusion levels on spinopelvic parameters in patients with adolescent idiopathic scoliosis (AIS) who underwent posterior instrumentation and fusion surgery. Overview of Literature: The distal fusion level selection in treatment of AIS is the one of milestone to effect on surgical outcome. Most of the paper focused on the coronal deformity correction and balance. The literature have lack of knowledge about spinopelvic changing after surgical treatment and the relation with distal fusion level. We evaluate the spinopelvic and pelvic parameter alteration after...
Source: Asian Spine Journal - March 7, 2018 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Preventing Construct Subsidence Following Cervical Corpectomy: The Bump-stop Technique.
Authors: Shaw KA, Griffith M, Mottern ET, Gloystein DM, Devine JG Abstract Cervical corpectomy is a viable technique for the treatment of multilevel cervical spine pathology. Despite multiple advances in both surgical technique and implant technology, the rate of construct subsidence can range from 6% for single-level procedures to 71% for multilevel procedures. In this technical note, we describe a novel technique, the bump-stop technique, for cervical corpectomy. The technique positions the superior and inferior screw holes such that the vertebral bodies bisect them. This allows for fixation in the dense cortical...
Source: Asian Spine Journal - March 7, 2018 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Do Dose-Dependent Microbial Changes Occur during Spine Surgery as a Result of Applying Intrawound Vancomycin Powder?: A Systematic Literature Review.
Authors: Xie L, Zhu J, Luo S, Xie Y, Pu D Abstract We analyzed dose-dependent effects of vancomycin on wound infection bacteria and investigated the relationship between dose and microbial imbalances in patients treated with intrawound vancomycin powder during spine surgery. Numerous trials have confirmed that using intrawound vancomycin powder during spine surgery may decrease postoperative wound infection rates. However, potential risks include changes in wound infection bacteria, inhibition of bone fusion, and systemic toxicity. We searched PubMed for articles published since October 2016 with the following term...
Source: Asian Spine Journal - March 7, 2018 Category: Orthopaedics Tags: Asian Spine J Source Type: research

A Review of Current Clinical Applications of Three-Dimensional Printing in Spine Surgery.
This article aims to review the current applications, limitations, and future developments of 3D printing technology in orthopaedic spine surgery. Current preoperative applications of 3D printing include construction of complex 3D anatomic models for improved visual understanding, preoperative surgical planning, and surgical simulations for resident education. Intraoperatively, 3D printers have been successfully used in surgical guidance systems and in the creation of patient specific implantable devices. Furthermore, 3D printing is revolutionizing the field of regenerative medicine and tissue engineering, allowing constru...
Source: Asian Spine Journal - March 7, 2018 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Are Controversial Issues in Cervical Total Disc Replacement Resolved or Unresolved?: A Review of Literature and Recent Updates.
Authors: Park CK, Ryu KS Abstract Since the launch of cervical total disc replacement (CTDR) in the early 2000s, many clinical studies have reported better outcomes of CTDR compared to those of anterior cervical discectomy and fusion. However, CTDR is still a new and innovative procedure with limited indications for clinical application in spinal surgery, particularly, for young patients presenting with soft disc herniation with radiculopathy and/or myelopathy. In addition, some controversial issues related to the assessment of clinical outcomes of CTDR remain unresolved. These issues, including surgical outcomes, ...
Source: Asian Spine Journal - March 7, 2018 Category: Orthopaedics Tags: Asian Spine J Source Type: research

T1 Slope in the Cervical Spine Magnetic Resonance Imaging: A Novel Concept.
Authors: Wang X PMID: 29503700 [PubMed] (Source: Asian Spine Journal)
Source: Asian Spine Journal - March 7, 2018 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Response to: "T1 Slope in the Cervical Spine Magnetic Resonance Imaging: A Novel Concept".
Response to: "T1 Slope in the Cervical Spine Magnetic Resonance Imaging: A Novel Concept". Asian Spine J. 2018 Feb;12(1):194 Authors: Lee SH PMID: 29503701 [PubMed] (Source: Asian Spine Journal)
Source: Asian Spine Journal - March 7, 2018 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Computed Tomography-Based Occipital Condyle Morphometry in an Indian Population to Assess the Feasibility of Condylar Screws for Occipitocervical Fusion.
This study focused on determining the feasibility of placing occipital condylar screws in an Indian population using CT anatomical morphometric data. Overview of Literature: The occipital condylar screw is a novel technique being explored as one of the options in occipitocervical stabilization. Sex and ethnic variations in anatomical structures may restrict the feasibility of this technique in some populations. To the best of our knowledge, there are no CT-based data on an Indian population that assess the feasibility of occipital condylar screws. Methods: We measured the dimensions of 82 occipital condyles in 41 a...
Source: Asian Spine Journal - December 30, 2017 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Evaluation of Two Novel Integrated Stand-Alone Spacer Designs Compared with Anterior and Anterior-Posterior Single-Level Lumbar Fusion Techniques: An In Vitro Biomechanical Investigation.
Conclusions: Integrated spacers provided fixation statistically equivalent to traditional techniques. Comparison of three-screw and four-screw integrated anterior lumbar interbody fusion spacers revealed no significant differences, but the longer, larger-diameter interbody spacer with three-screw design increased stabilization in FE and LB; the diverging four-screw design showed marginal improvement during AR. PMID: 29279739 [PubMed] (Source: Asian Spine Journal)
Source: Asian Spine Journal - December 30, 2017 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Detection of O-Linked-N-Acetylglucosamine Modification and Its Associated Enzymes in Human Degenerated Intervertebral Discs.
Conclusions: O-GlcNAc and OGA/OGT expression is shown to correlate for the first time with intervertebral disc cell degeneration. Increasing disc degeneration is associated with increasing O-GlcNAcylation in both nuclear and cytoplasmic proteins in human disc cells. PMID: 29279740 [PubMed] (Source: Asian Spine Journal)
Source: Asian Spine Journal - December 30, 2017 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Generation of Induced Pluripotent Stem Cells and Neural Stem/Progenitor Cells from Newborns with Spina Bifida Aperta.
Conclusions: We successfully generated iPSCs and iPSC-NSPCs from surgical samples obtained from newborns with SBa with the goal of future clinical use in patients with SBa. PMID: 29279741 [PubMed] (Source: Asian Spine Journal)
Source: Asian Spine Journal - December 30, 2017 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Prevalence and Complications of Postoperative Transfusion for Cervical Fusion Procedures in Spine Surgery: An Analysis of 11,588 Patients from the American College of Surgeons National Surgical Quality Improvement Program Database.
Conclusions: Our results demonstrate that although cervical fusions can be done as outpatient procedures special precautions and investigations should be done for patients who receive transfusion after cervical fusion. These patients are demonstrated to have higher rate of MI, TBE, wound infection and mortality when compared to those who do not receive transfusion. PMID: 29279742 [PubMed] (Source: Asian Spine Journal)
Source: Asian Spine Journal - December 30, 2017 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Prevalence of Lumbosacral Transitional Vertebra in Individuals with Low Back Pain: Evaluation Using Plain Radiography and Magnetic Resonance Imaging.
Authors: Shaikh A, Khan SA, Hussain M, Soomro S, Adel H, Adil SO, Huda F, Khanzada U Abstract Study Design: Descriptive cross-sectional study. Purpose: To determine the frequency of lumbosacral transitional vertebrae (LSTV) in patients with low back pain (LBP) and the role of iliolumbar ligament (ILL) origin from L5 in LSTV cases. Overview of Literature: Transitional vertebrae are developmental variants of the spine. LSTV is a common congenital abnormality, and failure to recognize this anomaly may result in serious consequences during surgery. Methods: All patients aged 11-90 years of either gender wit...
Source: Asian Spine Journal - December 30, 2017 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Postoperative Spinal Epidural Hematoma: The Danger Caused by the Misuse of Thrombin-Containing Local Hemostatics.
Conclusions: TCLH causes blood clot not only at the edge of damaged vessels but also at the site of extravascular blood. Excess TCLH matrix not associated with blood clot at the epidural space can enhance POSEH development because early clotted hematomas do not drain through suction drains. PMID: 29279744 [PubMed] (Source: Asian Spine Journal)
Source: Asian Spine Journal - December 30, 2017 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Effects of Atorvastatin in Patients with Acute Spinal Cord Injury.
Conclusions: We observed no improvement at the 3- and 6-month follow-up in patients who were administered atorvastatin. However, a comparison of the two groups based on pain severity demonstrated a significant difference, suggesting that atorvastatin had a positive effect on patients with spinal cord injury. PMID: 29279745 [PubMed] (Source: Asian Spine Journal)
Source: Asian Spine Journal - December 30, 2017 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Epidemiology and Clinical Management of Traumatic Spine Injuries at a Major Government Hospital in Cambodia.
Conclusions: Despite technological limitations, outcomes of TSI patients in Cambodia appear favorable with evidence of clinical improvement and low mortality. PMID: 29279746 [PubMed] (Source: Asian Spine Journal)
Source: Asian Spine Journal - December 30, 2017 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Prevalence of Neuropathic Pain and Patient-Reported Outcomes in Korean Adults with Chronic Low Back Pain Resulting from Neuropathic Low Back Pain.
Authors: Kim JH, Hong JT, Lee CS, Kim KS, Suk KS, Kim JH, Park YS, Chang BS, Jun DS, Kim YH, Lee JH, Min WK, Lee JS, Park SY, Oh IS, Hong JY, Shin HC, Kim WK, Kim JH, Lee JK, Kim IS, Ha Y, Im SB, Kim SW, Han IH, Shin JJ, Rim BC, Seo BJ, Kim YJ, Lee J Abstract Study Design: A noninterventional, multicenter, cross-sectional study. Purpose: We investigated the prevalence of neuropathic pain (NP) and patient-reported outcomes (PROs) of the quality of life (QoL) and functional disability in Korean adults with chronic low back pain (CLBP). Overview of Literature: Among patients with CLBP, 20%-55% had NP. Meth...
Source: Asian Spine Journal - December 30, 2017 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Surgical Outcomes of Cervical Myelopathy in Patients with Athetoid Cerebral Palsy: A 5-Year Follow-Up.
Conclusions: Posterior decompression and fusion should be considered a viable option for cervical myelopathy in patients with athetoid cerebral palsy. PMID: 29279748 [PubMed] (Source: Asian Spine Journal)
Source: Asian Spine Journal - December 30, 2017 Category: Orthopaedics Tags: Asian Spine J Source Type: research

A Safe Surgical Procedure for Old Distractive Flexion Injuries of the Subaxial Cervical Spine.
Conclusions: The A-P-A method (anterior discectomy, posterior release and/or partial facetectomy, reduction and instrumentation, anterior bone grafting) is considered to be a suitable surgical procedure for old cervical DF injuries. PMID: 29279749 [PubMed] (Source: Asian Spine Journal)
Source: Asian Spine Journal - December 30, 2017 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Anterior Longitudinal Ligament Reconstruction to Reduce Hypermobility of Cervical and Lumbar Disc Arthroplasty.
Conclusions: ALL reconstruction following cervical and lumbar disc arthroplasty is a promising solution to addressing non-physiological kinematics of current disc arthroplasty devices. Randomized, controlled studies with larger study samples and long-term follow-up are required to establish these conclusions. PMID: 29279750 [PubMed] (Source: Asian Spine Journal)
Source: Asian Spine Journal - December 30, 2017 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Thoracolumbar Vertebral Injuries with Neurological Deficit Treated with Posterior Decompression, Short Segment Pedicle Screw Fixation, and Interlaminar Fusion.
Conclusions: Short segment pedicle screw fixation with posterior decompression and interlaminar fusion provided considerable reduction in kyphosis, restored the vertebral height of patients with thoracolumbar vertebral injuries and neurological deficit, and prevented development of delayed kyphotic deformity. PMID: 29279751 [PubMed] (Source: Asian Spine Journal)
Source: Asian Spine Journal - December 30, 2017 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Difference in Spinal Sagittal Alignment and Health-Related Quality of Life between Males and Females with Cervical Deformity.
Authors: Oe S, Togawa D, Yoshida G, Hasegawa T, Yamato Y, Kobayashi S, Yasuda T, Banno T, Mihara Y, Matsuyama Y Abstract Study Design: Large cohort study. Purpose: To clarify spinal sagittal alignment and health-related quality of life (HRQOL) according to sex in volunteers aged>50 years with cervical deformity (CD). Overview of Literature: Adult spinal deformities, especially those associated with lumbosacral lesions, are more frequent in females; however, CD is observed to a greater extent in males. Methods: We divided 656 volunteers (263 males, 393 females; age, 50-89 years [mean, 73 years]) as fo...
Source: Asian Spine Journal - December 30, 2017 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Area of Ostectomy in Posterior Percutaneous Endoscopic Cervical Foraminotomy: Images and Mid-term Outcomes.
Conclusions: Residual stenosis in the lateral portion of the intervertebral foramen is weakly associated with postoperative outcomes. Our process achieved adequate FRRs and favorable postoperative outcomes, suggesting that our criteria for determining the resection area are appropriate. PMID: 29279753 [PubMed] (Source: Asian Spine Journal)
Source: Asian Spine Journal - December 30, 2017 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Assessment of the Relationship between Pelvic Tilt and the Sacro-Femoral-Pubic Angle in Middle-Aged and Elderly Asian Individuals.
Conclusions: A significant correlation between PT and the SFP angle was observed in middle-aged and elderly Asian subjects from the general population. PMID: 29279754 [PubMed] (Source: Asian Spine Journal)
Source: Asian Spine Journal - December 30, 2017 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Delayed Neurological Deficits after Osteoporotic Vertebral Fractures: Clinical Outcomes after Surgery.
Authors: Yeung YK, Ho ST Abstract Study Design: Retrospective cohort. Purpose: To review the clinical presentation of operated patients with delayed neurological deficits after osteoporotic vertebral fractures (OVFs). Overview of Literature: Delayed neurological deficits can occur from 1 week to 5.7 months after OVFs. Baba has reported 78% good-to-excellent improvement (i.e., ≥50%) after 20 posterior (Cotrel-Dubousset) and 7 anterior (Kaneda in 4, Zielke ventral derotational spondylodesis in 2, and un-instrumented anterior fusion in 1) fusions. Predictive factors for neurological deficits include burst t...
Source: Asian Spine Journal - December 30, 2017 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Prevalence of Chronic Nonspecific Low Back Pain and Its Associated Factors among Middle-Aged and Elderly People: An Analysis Based on Data from a Musculoskeletal Examination in Japan.
Authors: Iizuka Y, Iizuka H, Mieda T, Tsunoda D, Sasaki T, Tajika T, Yamamoto A, Takagishi K Abstract Study Design: A cross-sectional study. Purpose: To clarify the prevalence of chronic nonspecific low back pain (CNSLBP) and its associated factors among middle-aged and elderly Japanese individuals using data from a musculoskeletal examination conducted in general Japanese populations. Overview of Literature: Most studies evaluating low back pain-associated factors have been conducted in Western countries, but they have not always evaluated CNSLBP. Methods: We obtained data on 213 subjects aged>50 ye...
Source: Asian Spine Journal - December 30, 2017 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Safety of Pedicle Screws in Adolescent Idiopathic Scoliosis Surgery.
Authors: Chan CYW, Kwan MK Abstract To review existing publications on the safety of pedicle screw insertions in adolescent idiopathic scoliosis (AIS). Despite having increased risk for neurological and visceral injuries, the use of pedicle screws have led to increased correction rates in scoliosis surgery. A review was performed on topics pertinent to pedicle screw insertion in AIS, which included pedicle morphometry in AIS, structures at risk during pedicle screw insertion, and accuracy and safety of various pedicle screw insertion techniques. The importance of computer navigation and future research regarding pe...
Source: Asian Spine Journal - December 30, 2017 Category: Orthopaedics Tags: Asian Spine J Source Type: research

The Role of Dynamic Magnetic Resonance Imaging in Cervical Spondylotic Myelopathy.
We describe a number of parameters evaluated in 2661 total patients, including dynamic changes to spinal cord and canal dimensions, transient compression of the cord with changes in position, and the effects of position on the intervertebral disc. dMRI is a useful tool for understanding the development of CSM. It has found several applications in the diagnosis and preoperative evaluation of many patients, as well as certain congenital dysplasias and Hirayama disease. It is useful in correlating symptoms with the dynamic changes only noted on dMRI, and has reduced the incidence of misdiagnosis of myelopathy. PMID: 29279...
Source: Asian Spine Journal - December 30, 2017 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Morphometric Study of C1 Pedicle and Feasibility Evaluation of C1 Pedicle Screw Placement with a Novel Clinically Relevant Radiological Classification in an Indian Population.
We examined the differences between the right and left atlas pedicles and compared measures between males and females. These data were analyzed using significance tests. Based on the results, we propose a novel classification system, which we believe will help in determining the feasibility of C1 pedicle screw placement. Results: Forty-two adult patients (84 pedicles) were examined. Average EMH and IMH were 4.48±0.91 and 0.86±0.77, respectively. Approximately, 32% of the C1 pedicles had bone thicknesses of
Source: Asian Spine Journal - November 3, 2017 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Small Interfering RNA-Mediated Suppression of Fas Modulate Apoptosis and Proliferation in Rat Intervertebral Disc Cells.
Authors: Park JB, Park C Abstract Study Design: In vitro cell culture model. Purpose: To investigate the effect of small interfering RNA (siRNA) on Fas expression, apoptosis, and proliferation in serum-deprived rat disc cells. Overview of Literature: Synthetic siRNA can trigger an RNA interference (RNAi) response in mammalian cells and precipitate the inhibition of specific gene expression. However, the potential utility of siRNA technology in downregulation of specific genes associated with disc cell apoptosis remains unclear. Methods: Rat disc cells were isolated and cultured in the presence of either...
Source: Asian Spine Journal - November 3, 2017 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Coccygeal Morphology on Multislice Computed Tomography in a Tertiary Hospital in India.
Conclusions: Type I was the most common coccyx type in our study, as in Egyptian and Western populations. The number of coccygeal vertebrae and prevalence of sacrococcygeal and intercoccygeal fusion in the Indian population were similar to those in the Western population. The mean coccygeal straight length and mean sacrococcygeal curvature angle were higher in males, whereas the intercoccygeal curvature angle was higher in females. Information on similarities and differences in coccygeal morphology between different ethnic populations could be useful in imaging and treating patients presenting with coccydynia. PMID: 29...
Source: Asian Spine Journal - November 3, 2017 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Incorporation of Whole Spine Screening in Magnetic Resonance Imaging Protocols for Low Back Pain: A Valuable Addition.
Conclusions: We propose that T2-weighted sagittal screening of the whole spine be included as a routine sequence when imaging the lumbosacral spine for suspected degenerative pathology of the intervertebral discs. PMID: 29093778 [PubMed] (Source: Asian Spine Journal)
Source: Asian Spine Journal - November 3, 2017 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Comparison of Clinical and Radiological Outcomes of Lumbar Interbody Fusion Using a Combination of Hydroxyapatite and Demineralized Bone Matrix and Autografts for Lumbar Degenerative Spondylolisthesis.
Conclusions: The clinical and radiological outcomes of using a combination of HA and DBM in lumbar interbody fusion were not inferior to those of using autografts. A combination of HA and DBM can be considered as an alternative in patients with lumbar degenerative spondylolisthesis requiring surgery. PMID: 29093779 [PubMed] (Source: Asian Spine Journal)
Source: Asian Spine Journal - November 3, 2017 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Does the Addition of a Dynamic Pedicle Screw to a Fusion Segment Prevent Adjacent Segment Pathology in the Lumbar Spine?
Conclusions: Although the combined use of dynamic screws and the static system was radiologically found to be effective for preventing ASP in patients who underwent lumbar fusion with posterior instrumentation, it did not completely eliminate ASP or result in a significant improvement in clinical ASP. PMID: 29093780 [PubMed] (Source: Asian Spine Journal)
Source: Asian Spine Journal - November 3, 2017 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Efficacy of the Thoracolumbar Interfascial Plane Block for Lumbar Laminoplasty: A Retrospective Study.
Conclusions: The TLIP block provides effective analgesia for 24 hours postoperatively in patients undergoing lumbar laminoplasty. PMID: 29093781 [PubMed] (Source: Asian Spine Journal)
Source: Asian Spine Journal - November 3, 2017 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Central Sagittal Angle of the Sacrum as a New Risk Factor for Patients with Persistent Low Back Pain after Caesarean Section.
Conclusions: Age, parity, and CSAS appear to be associated with increased risk for LBP after CS under spinal anesthesia. Future prospective studies on this subject may help validate our results. PMID: 29093782 [PubMed] (Source: Asian Spine Journal)
Source: Asian Spine Journal - November 3, 2017 Category: Orthopaedics Tags: Asian Spine J Source Type: research

The "Skipped Segment Screw" Construct: An Alternative to Conventional Lateral Mass Fixation-Biomechanical Analysis in a Porcine Cervical Spine Model.
The "Skipped Segment Screw" Construct: An Alternative to Conventional Lateral Mass Fixation-Biomechanical Analysis in a Porcine Cervical Spine Model. Asian Spine J. 2017 Oct;11(5):733-738 Authors: Padhye KP, Murugan Y, Milton R, Nambi Raj NA, David KS Abstract Study Design: Cadaveric biomechanical study. Purpose: We compared the "skipped segment screw" (SSS) construct with the conventional "all segment screw" (ASS) construct for cervical spine fixation in six degrees of freedom in terms of the range of motion (ROM). Overview of Literature: Currently, no clear guide...
Source: Asian Spine Journal - November 3, 2017 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Sagittal Alignment of a Strut Graft Affects Graft Subsidence and Clinical Outcomes of Anterior Cervical Corpectomy and Fusion.
Authors: Yamauchi K, Fushimi K, Miyamoto K, Hioki A, Shimizu K, Akiyama H Abstract Study Design: Retrospective study. Purpose: The purpose of this study was to investigate the influence of sagittal alignment of the strut graft on graft subsidence and clinical outcomes after anterior cervical corpectomy and fusion (ACCF). Overview of Literature: ACCF is a common technique for the treatment of various cervical pathologies. Although graft subsidence sometimes occurs after ACCF, it is one cause for poor clinical results. Malalignment of the strut graft is probably one of the factors associated with graft subsid...
Source: Asian Spine Journal - November 3, 2017 Category: Orthopaedics Tags: Asian Spine J Source Type: research

A Preliminary Study of the Objective Measurement of Compliance Rates for Semirigid Lumbar-Support Use in Patients with Chronic Nonspecific Low Back Pain: How Important Is the Compliance Rate?
Authors: Hekmatfard M, Sanjari MA, Maroufi N, Saeedi H, Ebrahimi E, Behtash H Abstract Study Design: Clinical pilot study. Purpose: To objectively evaluate the compliance rate of lumbar-support use in patients with chronic nonspecific low back pain, as well as to assess low back pain intensity, disability, and fear-avoidance beliefs. Overview of Literature: Wearing time is an important factor in the assessment of the efficacy of lumbar-support use in patients with chronic nonspecific low back pain. Previous studies have measured lumbar-support wearing time based on subjective assessment, and these evaluatio...
Source: Asian Spine Journal - November 3, 2017 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Perioperative Medical Complications after Posterior Approach Spinal Instrumentation Surgery for Osteoporotic Vertebral Collapse: A Comparative Study in Patients with Primary Osteoporosis and Those with Secondary Osteoporosis.
Authors: Miyakoshi N, Kobayashi T, Suzuki T, Kikuchi K, Kasukawa Y, Shimada Y Abstract Study Design: A retrospective comparative study. Purpose: To compare perioperative medical complications after posterior approach spinal instrumentation surgery for osteoporotic vertebral collapse (OVC) between patients with primary osteoporosis and those with secondary osteoporosis. Overview of Literature: With increased aging of society, the demand for instrumentation surgery for an osteoporotic spine has been increasing. However, no studies have compared the rates or severities of perioperative complications after spin...
Source: Asian Spine Journal - November 3, 2017 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Significance of Stabilometry for Assessing Postoperative Body Sway in Patients with Cervical Myelopathy.
Authors: Tanishima S, Nagashima H, Ishii H, Fukata S, Dokai T, Murakami T, Morio Y Abstract Study Design: Prospective study. Purpose: To examine the changes in body sway using stabilometry in patients who underwent cervical laminoplasty for cervical myelopathy. Overview of Literature: Although the patients of cervical myelopathy complain body sway there are few report to examine body sway objectively. Methods: Patients who received treatment for cervical myelopathy between October 2010 and February 2013 were included. Twenty-one patients underwent cervical laminoplasty (myelopathy group). Body sway was ...
Source: Asian Spine Journal - November 3, 2017 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Normal Age-Adjusted Sagittal Spinal Alignment Is Achieved with Surgical Correction in Adolescent Idiopathic Scoliosis.
Authors: Ramchandran S, Foster N, Sure A, Errico TJ, Buckland AJ Abstract Study Design: Retrospective analysis. Purpose: Our hypothesis is that the surgical correction of adolescent idiopathic scoliosis (AIS) maintains normal sagittal alignment as compared to age-matched normative adolescent population. Overview of Literature: Sagittal spino-pelvic alignment in AIS has been reported, however, whether corrective spinal fusion surgery re-establishes normal alignment remains unverified. Methods: Sagittal profiles and spino-pelvic parameters of thirty-eight postsurgical correction AIS patients ≤21 years ...
Source: Asian Spine Journal - November 3, 2017 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Bone Mineral Density and Physical Performance of Female Patients 27 Years or Longer after Surgery for Adolescent Idiopathic Scoliosis.
Conclusions: In female AIS patients who underwent spinal fusion in adolescence, 4.3% and 39.1% had osteoporosis and osteopenia, respectively, ≥27 years after surgery. Exercise performance of these patients was poor compared with the national standards. In these patients, increased physical activity should be encouraged to prevent BMD loss in middle age. PMID: 29093789 [PubMed] (Source: Asian Spine Journal)
Source: Asian Spine Journal - November 3, 2017 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Perioperative Evaluation of Respiratory Muscle Strength after Scoliosis Correction in Patients with Duchenne Muscular Dystrophy.
Conclusions: By focusing on respiratory muscle strength, our results suggest that scoliosis correction in patients with DMD might have a favorable effect on respiratory function. PMID: 29093790 [PubMed] (Source: Asian Spine Journal)
Source: Asian Spine Journal - November 3, 2017 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Postoperative Spinal Subdural Lesions Following Lumbar Spine Surgery: Prevalence and Risk Factors.
Authors: Nagamoto Y, Takenaka S, Aono H Abstract Study Design: Retrospective case-control study. Purpose: To clarify the prevalence and risk factors for spinal subdural lesions (SSDLs) following lumbar spine surgery. Overview of Literature: Because SSDLs, including arachnoid cyst and subdural hematoma, that develop following spinal surgery are seldom symptomatic and require reoperation, there are few reports on these pathologies. No study has addressed the prevalence and risk factors for SSDLs following lumbar spine surgery. Methods: We conducted a retrospective analysis of the magnetic resonance (MR) i...
Source: Asian Spine Journal - November 3, 2017 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Managing the Pediatric Spine: Growth Assessment.
Authors: Cheung JPY, Luk KD Abstract Management of pediatric spinal deformities requires an accurate prediction of growth spurts to allow for timely initiation of treatment and prevention of curve progression. Determining remaining growth potential is also important for avoiding prolonged unnecessary treatment, e.g. bracing for patients nearing skeletal maturity. Many clinical and radiological growth parameters have been developed to aid clinicians in growth prediction. Of these, several commonly used measures such as height and arm span growth trends, timing of menarche, and the Risser sign are mostly retrospectiv...
Source: Asian Spine Journal - November 3, 2017 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Review of Cortical Bone Trajectory: Evidence of a New Technique.
This article summarizes recent evidence on the cortical bone trajectory (CBT) obtained from published anatomical, biomechanical, and clinical studies. CBT was proposed by Santoni in 2009 as a new trajectory that can improve the fixation of pedicle screws in response to screw loosening in osteoporotic patients. Recently, research interest has been growing with increasing numbers of published series and frequent reports of new applications. We performed an online database search using the terms "cortical bone trajectory," "pedicle screw," "CBT spine," "CBT fixation," "MISS CBT,&qu...
Source: Asian Spine Journal - November 3, 2017 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Minimally-Invasive versus Conventional Repair of Spondylolysis in Athletes: A Review of Outcomes and Return to Play.
Authors: Kolcun JPG, Chieng LO, Madhavan K, Wang MY Abstract Spondylolysis from pars fracture is a common injury among young athletes, which can limit activity and cause chronic back pain. While current literature has examined the relative benefits of surgical and conservative management of these injuries, no study has yet compared outcomes between conventional direct repair of pars defects and modern minimally invasive procedures. The goals of surgery are pain resolution, return to play at previous levels of activity, and a shorter course of recovery. In this review, the authors have attempted to quantify any diff...
Source: Asian Spine Journal - November 3, 2017 Category: Orthopaedics Tags: Asian Spine J Source Type: research

Letter to the Editor: Long-term Outcomes of In Situ Fusion for Treating Dysplastic Spondylolisthesis.
Authors: Subramanian S, Viswanathan VK PMID: 29093795 [PubMed] (Source: Asian Spine Journal)
Source: Asian Spine Journal - November 3, 2017 Category: Orthopaedics Tags: Asian Spine J Source Type: research