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https://www.readbyqxmd.com/read/28525492/degenerative-cervical-disc-disease-long-term-changes-in-sagittal-alignment-and-their-clinical-implications-after-cervical-interbody-fusion-cage-subsidence-a-prospective-study-with-standalone-lordotic-tantalum-cages
#1
Félix Tomé-Bermejo, Julián A Morales-Valencia, Javier Moreno-Pérez, Juan Marfil-Pérez, Elena Díaz-Dominguez, Angel R Piñera, Luis Alvarez
STUDY DESIGN: A retrospective, observational study of prospectively collected outcomes. OBJECTIVE: To investigate the long-term clinical course of anterior cervical discectomy and fusion with interbody fusion cages (ACDF-IFC) with lordotic tantalum implants and to correlate the radiologic findings with the clinical outcomes, with special emphasis on the significance and the influence of implant subsidence. SUMMARY OF BACKGROUND DATA: Cage subsidence is the most frequently reported complication after ACDF-IFC...
June 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28523382/adult-spinal-deformity-effectiveness-of-interbody-lordotic-cages-to-restore-disc-angle-and-spino-pelvic-parameters-through-completely-mini-invasive-trans-psoas-and-hybrid-approach
#2
Giuseppe Barone, Laura Scaramuzzo, Antonino Zagra, Fabrizio Giudici, Andrea Perna, Luca Proietti
PURPOSE: The aim of the study is to assess and quantify the effectiveness of interbody lordotic cages applied by trans-psoas approach to improve radiographic parameters, showing the differences between completely mini-invasive and hybrid approach. METHODS: We collected data of 65 patients affected by degenerative lumbar deformity/diseases and underwent mini-invasive lateral interbody fusion followed by percutaneous (group A, completely mini-invasive) or open (group B, hybrid) posterior instrumentation...
May 18, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28511802/-a-continuous-series-of-27-adult-patients-treated-for-l5-s1-isthmic-spondylolisthesis-by-combined-approach-clinical-and-radiological-outcomes-at-1-year-follow-up
#3
N Koné, E Freitas Olim, P Coloma, A Rusconi, L Chenin, O Sy, I S Souaré, C Barrey
Through this single-center consecutive prospective study, we evaluated the results of a combined approach for L5-S1 isthmic spondylolisthesis, using a polyetheretherketone (PEEK) interbody lordotic cage during anterior approach and pedicle screw-based posterior fixation. Between 2010 and 2014, 27 adult patients were treated for L5-S1 isthmic spondylolisthesis (high and low grades) by a combined approach with a minimum follow-up of one year. Clinical outcome was assessed before surgical treatment and at four months and one year after surgery by: VAS, Oswestry Index (ODI) and Rolland-Morris scores...
May 13, 2017: Neuro-Chirurgie
https://www.readbyqxmd.com/read/28501956/an-in-vitro-evaluation-of-sagittal-alignment-in-the-cervical-spine-after-insertion-of-supraphysiologic-lordotic-implants
#4
Donald J Blaskiewicz, Jeffrey E Harris, Patrick P Han, Alexander W Turner, Gregory M Mundis
PURPOSE: Cervical spine malalignment can develop as a consequence of degenerative disc disease or following spinal surgery. When normal sagittal alignment of the spine is disrupted, further degeneration may occur adjacent to the deformity. The purpose of this study was to investigate changes in lordosis and sagittal alignment in the cervical spine after insertion of supraphysiologic lordotic implants. METHODS: Eight cadaveric cervical spines (Occiput-T1) were tested...
May 13, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28499016/minimally-invasive-transforaminal-lumbar-interbody-fusion-using-banana-shaped-and-straight-cages-radiological-and-clinical-results-from-a-prospective-randomized-clinical-trial
#5
Won-Suh Choi, Jin-Sung Kim, Jung-Woo Hur, Ji-Hoon Seong
BACKGROUND: In minimally invasive transforaminal lumbar interbody fusion (MIS-TLIF), cage type and position play important roles in fusion achievement and sagittal alignment correction. However, no prospective randomized comparison of the results using different types of cage has been reported to date. OBJECTIVE: To compare the radiological and clinical outcomes of unilateral MIS-TLIF using 2 types of cage. METHODS: All candidates for single-level MIS-TLIF were randomized into banana-shaped cage and straight-cage groups...
May 10, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28476690/the-relationships-between-low-back-pain-and-lumbar-lordosis-a-systematic-review-and-meta-analysis
#6
REVIEW
Se-Woong Chun, Chai-Young Lim, Keewon Kim, Jinseub Hwang, Sun G Chung
BACKGROUND CONTEXT: Clinicians regard lumbar lordotic curvature (LLC) with respect to low back pain (LBP) in a contradictory fashion. The time-honored point of view is that LLC itself, or its increment causes LBP. On the other hand, recently, the biomechanical role of LLC has been emphasized and loss of lordosis is considered a possible cause of LBP. The relationship between LLC and LBP has immense clinical significance, since it serves as the basis of therapeutic exercises for treating and preventing LBP...
May 2, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28455623/classification-of-normal-sagittal-spine-alignment-refounding-the-roussouly-classification
#7
Féthi Laouissat, Amer Sebaaly, Martin Gehrchen, Pierre Roussouly
PURPOSE: Although the Roussouly classification of common variants in spinal sagittal alignment is well accepted, no studies have implemented it in an asymptomatic adult population. In addition, no study investigated the radiographic features of asymptomatic patients with an anteverted pelvis. The aim of this prospective radiographic study of 296 asymptomatic adults without spinal pathology was to investigate how the Roussouly classification could include the anteverted pelvis concept...
April 28, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28449961/risk-factors-of-proximal-junctional-kyphosis-in-adolescent-idiopathic-scoliosis-the-pelvis-and-other-considerations
#8
Baron S Lonner, Yuan Ren, Peter O Newton, Suken A Shah, Amer F Samdani, Harry L Shufflebarger, Jahangir Asghar, Paul Sponseller, Randal R Betz, Burt Yaszay
STUDY DESIGN: Prospective multicenter database study. OBJECTIVES: To assess the incidence of proximal junctional kyphosis (PJK) in operative adolescent idiopathic scoliosis (AIS) using contemporary surgical techniques and to identify risk factors for PJK. SUMMARY OF BACKGROUND DATA: The incidence of PJK has been reported as high as 46% in AIS. Factors associated with PJK have been incompletely explored. METHODS: Prospectively enrolled 851 AIS patients (2000-2011, 78...
May 2017: Spine Deformity
https://www.readbyqxmd.com/read/28437335/do-lordotic-cages-provide-better-segmental-lordosis-versus-nonlordotic-cages-in-lateral-lumbar-interbody-fusion-llif
#9
Jonathan N Sembrano, Ryan D Horazdovsky, Amit K Sharma, Sharon C Yson, Edward R G Santos, David W Polly
STUDY DESIGN: A retrospective comparative radiographic review. OBJECTIVE: To evaluate the radiographic changes brought about by lordotic and nonlordotic cages on segmental and regional lumbar sagittal alignment and disk height in lateral lumbar interbody fusion (LLIF). SUMMARY OF BACKGROUND DATA: The effects of cage design on operative level segmental lordosis in posterior interbody fusion procedures have been reported. However, there are no studies comparing the effect of sagittal implant geometry in LLIF...
May 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28430792/the-influence-of-sagittal-profile-alteration-and-final-lordosis-on-the-clinical-outcome-of-cervical-spondylotic-myelopathy-a-delta-omega-analysis
#10
Daniel Koeppen, Claudia Piepenbrock, Stefan Kroppenstedt, Mario Čabraja
PURPOSE: Decompression and maintaining or restoring a cervical lordosis are major goals in the surgical treatment of cervical spondylotic myelopathy (CSM). Numerous studies support the assumption that cervical lordosis is a key factor for neurological recovery and pain reduction. However, even kyphotic patients can be asymptomatic. The balance of the spine is subject of an increasing number of publications. The main purpose of the study was to evaluate the validity of lordotic alignment on the course of CSM and to set this parameter in context with well-validated tools, namely the modified Japanese Orthopaedic Association scoring system (mJOAS) and the visual analogue scale (VAS), to predict and measure the clinical outcome after surgery...
2017: PloS One
https://www.readbyqxmd.com/read/28374128/cage-deviation-in-the-subaxial-cervical-spine-in-relation-to-implant-position-in-the-sagittal-plane
#11
Klaus Christian Mende, Sven Oliver Eicker, Friedrich Weber
Subsidence of interbody cages is a frequently observed and relevant complication in anterior cervical discectomy and fusion (ACDF). Only a handful of studies concentrated on the modality of subsidence and its clinical impact. We performed a retrospective analysis of ACDF patients from 2004 to 2010. Numeric analog scale (NAS) score pre-op and post-op, Oswestry Disability Index (ODI) on x-rays, endplate (EP) and cage dimensions, implant position, lordotic/kyphotic subsidence patterns (>5°), and cervical alignment were recorded...
April 4, 2017: Neurosurgical Review
https://www.readbyqxmd.com/read/28371661/applying-an-active-lumbopelvic-control-strategy-during-lumbar-extension-exercises-effect-on-muscle-recruitment-patterns-of-the-lumbopelvic-region
#12
Jessica Van Oosterwijck, Eline De Ridder, Andry Vleeming, Guy Vanderstraeten, Stijn Schouppe, Lieven Danneels
OBJECTIVE: Examine whether implementing an active lumbopelvic control strategy during high load prone lumbar extension exercises affects posterior extensor chain recruitment and lumbopelvic kinematics. METHODS: Thirteen healthy adults acquired an optimal active lumbopelvic control strategy during guided/home-based training sessions. During the experimental session electromyography was used to evaluate the activity of the posterior extensor chain muscles during high load trunk/bilateral leg extension exercises with/without application of the strategy...
March 31, 2017: Human Movement Science
https://www.readbyqxmd.com/read/28323709/single-stage-transpedicular-vertebrectomy-and-expandable-cage-placement-for-treatment-of-unstable-mid-and-lower-lumbar-burst-fractures
#13
Jong-Il Choi, Bum-Joon Kim, Sung-Kon Ha, Sang-Dae Kim, Dong-Jun Lim, Se-Hoon Kim
STUDY DESIGN: Retrospective clinical and radiographic study. OBJECTIVE: To examine the efficacy and safety of vertebrectomy and expandable cage placement by a single-stage posterior approach for unstable mid and lower lumbar burst fractures (below the L3). SUMMARY OF BACKGROUND DATA: Patients with unstable mid and lower lumbar burst fractures require surgical treatment to relieve pain, address paralysis, and stabilize the spine to prevent further segmental deformity...
April 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28319468/the-impact-of-cage-dimensions-positioning-and-side-of-approach-in-extreme-lateral-interbody-fusion
#14
Marjan Alimi, Gernot Lang, Rodrigo Navarro-Ramirez, Moritz Perrech, Connor Berlin, Christoph P Hofstetter, Yu Moriguchi, Eric Elowitz, Roger Härtl
STUDY DESIGN: This is a retrospective single-center study. OBJECTIVE: The aim of the study was to evaluate the impact of cage characteristics and position toward clinical and radiographic outcome measures in patients undergoing extreme lateral interbody fusion (ELIF). SUMMARY OF BACKGROUND DATA: ELIF is utilized for indirect decompression and minimally invasive surgical treatment for various degenerative spinal disorders. However, evidence regarding the influence of cage characteristics in patient outcome is minimal...
March 17, 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28306640/cervical-alignment-variations-in-different-postures-and-predictors-of-normal-cervical-kyphosis-a-new-understanding
#15
Hwee Weng Dennis Hey, Eugene Tze-Chun Lau, Chengyuan Gordon Wong, Kimberly-Anne Tan, Gabriel Ka-Po Liu, Hee-Kit Wong
STUDY DESIGN: Prospective comparative study OBJECTIVE.: To predict physiological alignment of the cervical spine and study its morphology in different postures. SUMMARY OF BACKGROUND DATA: There is increasing evidence that normal cervical spinal alignment may vary from lordosis to neutral to kyphosis, or form S-shaped or reverse S-shaped curves. METHODS: Standing, erect sitting and natural sitting whole spine radiographs were obtained from 26 consecutive patients without cervical spine pathology...
March 16, 2017: Spine
https://www.readbyqxmd.com/read/28291407/an-assessment-of-the-most-reliable-method-to-estimate-the-sagittal-alignment-of-the-cervical-spine-analysis-of-a-prospective-cohort-of-138-cases
#16
Roland D Donk, Michael G Fehlings, Wim I M Verhagen, Hisse Arnts, Hans Groenewoud, André L M Verbeek, Ronald H M A Bartels
OBJECTIVE Although there is increasing recognition of the importance of cervical spinal sagittal balance, there is a lack of consensus as to the optimal method to accurately assess the cervical sagittal alignment. Cervical alignment is important for surgical decision making. Sagittal balance of the cervical spine is generally assessed using one of two methods; namely, measuring the angle between C-2 and C-7, and drawing a line between C-2 and C-7. Here, the best method to assess sagittal alignment of the cervical spine is investigated...
May 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28260870/age-related-changes-in-muscle-strength-and-spinal-kyphosis-angles-in-an-elderly-japanese-population
#17
Yuji Kasukawa, Naohisa Miyakoshi, Michio Hongo, Yoshinori Ishikawa, Daisuke Kudo, Masazumi Suzuki, Takashi Mizutani, Ryouta Kimura, Yuichi Ono, Yoichi Shimada
Lumbar kyphosis and the decreased mobility of the lumbar spine increase the risk of falls and impair both the quality of life and the ability to perform activities of daily living. However, in the elderly Japanese population, little is known about the age-related changes and sex-related differences in muscle strength, including of the upper and lower extremities and back extensors. An adequate kyphotic or lordotic angle has also not been determined. In this study, we evaluated the age-related changes in muscle strength and spinal kyphosis in 252 males and 320 females ≥50 years of age...
2017: Clinical Interventions in Aging
https://www.readbyqxmd.com/read/28254673/cervical-lordosis-the-effect-of-age-and-gender
#18
Ella Been, Sara Shefi, Michalle Soudack
BACKGROUND CONTEXT: The cervical lordosis is of great importance to posture and function. Neck pain and disability is often associated with cervical lordosis malalignment. Surgical procedures involving cervical lordosis stabilization or restoration must take into account age and gender differences in cervical lordosis architecture to avoid further complications. PURPOSE: Therefore, the purpose of the present study was to evaluate differences in the cervical lordosis between males and females from childhood to adulthood...
February 27, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28245994/anterior-migration-after-bryan-cervical-disc-arthroplasty-the-relationship-between-hyperlordosis-and-its-impact-on-clinical-outcomes
#19
Tao Lei, Tong Tong, Dechao Miao, Xianda Gao, Jiaxin Xu, Di Zhang, Yong Shen
BACKGROUND: Various modifications have been tested to prevent kyphosis after Bryan cervical disc arthroplasty (CDA). However, the migration of Bryan prostheses has not been systematically studied. This study investigated the cause of anterior migration (AM) and assessed the effect of AM on clinical and radiographic outcomes. METHODS: We retrospectively reviewed 46 consecutive patients who underwent modified Bryan CDA between August 2006 and December 2010. We measured functional spinal unit, angle of operative disc space, range of motion, and sagittal alignment of cervical spine preoperatively, postoperatively, and at the final follow-up, and compared these values between the AM and non-AM groups...
May 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28240654/lumbar-spine-alignment-in-6-common-postures-a-rom-analysis-with-implications-for-deformity-correction
#20
Hwee Weng Dennis Hey, Eugene Tze-Chun Lau, Kimberly-Anne Tan, Joel Louis Lim, Denise Choong, Leok-Lim Lau, Ka-Po Gabriel Liu, Hee-Kit Wong
STUDY DESIGN: . A prospective cross-sectional study. OBJECTIVE: To compare lumbar spine alignment in 6 common postures, and estimate loss in range of motion (ROM) relative to standing. SUMMARY OF BACKGROUND DATA: Ideal position for fusion of lumbar spine remains unknown. While surgical fusion is necessary for deformity correction and symptom relief, the final position in which the vertebrae are immobilized should provide maximum residual function...
February 24, 2017: Spine
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