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ORTHOPEDICS AND TRAUMATOLOGY (150 journals)                     

Showing 1 - 152 of 152 Journals sorted alphabetically
Acta Orthopaedica     Open Access   (Followers: 32)
Advances in Orthopedics     Open Access   (Followers: 9)
American Journal of Orthodontics and Dentofacial Orthopedics     Hybrid Journal   (Followers: 9)
American Journal of Orthopedics     Partially Free   (Followers: 3)
Archives of Orthopaedic and Trauma Surgery     Hybrid Journal   (Followers: 9)
Archives of Osteoporosis     Hybrid Journal   (Followers: 1)
Arthritis und Rheuma     Hybrid Journal  
Arthroplasty Today     Open Access   (Followers: 1)
Australasian Musculoskeletal Medicine     Full-text available via subscription   (Followers: 5)
BMC Musculoskeletal Disorders     Open Access   (Followers: 29)
Bone & Joint 360     Full-text available via subscription   (Followers: 18)
Bone Research     Hybrid Journal   (Followers: 2)
Burns & Trauma     Open Access   (Followers: 11)
Cartilage     Hybrid Journal   (Followers: 5)
Case Reports in Orthopedic Research     Open Access  
Case Reports in Orthopedics     Open Access   (Followers: 6)
Chinese Journal of Traumatology     Open Access  
Cleft Palate-Craniofacial Journal     Hybrid Journal   (Followers: 8)
Clinical Medicine Insights : Arthritis and Musculoskeletal Disorders     Open Access   (Followers: 3)
Clinical Orthopaedics and Related Research     Hybrid Journal   (Followers: 78)
Clinical Trials in Orthopedic Disorders     Open Access   (Followers: 1)
Concussion     Open Access  
Craniomaxillofacial Trauma and Reconstruction     Hybrid Journal   (Followers: 1)
Current Orthopaedic Practice     Hybrid Journal   (Followers: 14)
Current Reviews in Musculoskeletal Medicine     Open Access   (Followers: 13)
Der Orthopäde     Hybrid Journal   (Followers: 6)
Die Wirbelsäule     Hybrid Journal  
Duke Orthopedic Journal     Open Access   (Followers: 5)
East African Orthopaedic Journal     Full-text available via subscription  
EFORT Open Reviews     Open Access   (Followers: 1)
Egyptian Orthopaedic Journal     Open Access   (Followers: 1)
EMC - Técnicas Quirúrgicas - Ortopedia y Traumatología     Full-text available via subscription  
EMC - Tecniche Chirurgiche - Chirurgia Ortopedica     Full-text available via subscription  
Ergonomics     Hybrid Journal   (Followers: 22)
European Journal of Orthopaedic Surgery & Traumatology     Hybrid Journal   (Followers: 9)
European Journal of Podiatry / Revista Europea de Podología     Open Access   (Followers: 1)
European Spine Journal     Hybrid Journal   (Followers: 24)
Foot & Ankle International     Hybrid Journal   (Followers: 10)
Foot & Ankle Orthopaedics     Open Access   (Followers: 3)
Gait & Posture     Hybrid Journal   (Followers: 17)
Geriatric Orthopaedic Surgery Rehabilitation     Open Access   (Followers: 5)
Global Spine Journal     Open Access   (Followers: 12)
Hip International     Hybrid Journal  
Indian Journal of Orthopaedics     Open Access   (Followers: 8)
Informationen aus Orthodontie & Kieferorthopädie     Hybrid Journal  
Injury     Hybrid Journal   (Followers: 20)
International Journal of Orthopaedic and Trauma Nursing     Hybrid Journal   (Followers: 11)
International Journal of Orthopaedic Surgery     Open Access   (Followers: 5)
International Journal of Orthopaedics     Open Access   (Followers: 2)
International Journal of Research in Orthopaedics     Open Access  
International Musculoskeletal Medicine     Hybrid Journal   (Followers: 7)
International Orthopaedics     Hybrid Journal   (Followers: 18)
JAAOS : Global Research & Reviews     Open Access   (Followers: 1)
JBJS Journal of Orthopaedics for Physician Assistants     Hybrid Journal  
JBJS Reviews     Full-text available via subscription   (Followers: 11)
JOR Spine     Open Access   (Followers: 3)
Journal de Traumatologie du Sport     Full-text available via subscription   (Followers: 2)
Journal für Mineralstoffwechsel & Muskuloskelettale Erkrankungen     Hybrid Journal  
Journal of Bone and Joint Diseases     Open Access   (Followers: 4)
Journal of Bone and Joint Infection     Open Access   (Followers: 1)
Journal of Brachial Plexus and Peripheral Nerve Injury     Open Access   (Followers: 4)
Journal of Cachexia, Sarcopenia and Muscle     Open Access   (Followers: 2)
Journal of Children's Orthopaedics     Open Access   (Followers: 10)
Journal of Clinical Orthopaedics and Trauma     Hybrid Journal   (Followers: 5)
Journal of Experimental Orthopaedics     Open Access   (Followers: 8)
Journal of Hand Surgery (European Volume)     Hybrid Journal   (Followers: 44)
Journal of Head Trauma Rehabilitation     Hybrid Journal   (Followers: 17)
Journal of Musculoskeletal Research     Hybrid Journal   (Followers: 9)
Journal of Orofacial Orthopedics / Fortschritte der Kieferorthopädie     Hybrid Journal  
Journal of Orthodontic Science     Open Access   (Followers: 2)
Journal of Orthopaedic & Sports Physical Therapy     Full-text available via subscription   (Followers: 69)
Journal of Orthopaedic Association of South Indian States     Open Access   (Followers: 5)
Journal of Orthopaedic Diseases and Traumatology     Open Access   (Followers: 5)
Journal of Orthopaedic Reports     Full-text available via subscription   (Followers: 12)
Journal of Orthopaedic Research     Hybrid Journal   (Followers: 29)
Journal of Orthopaedic Science     Hybrid Journal   (Followers: 4)
Journal of Orthopaedic Surgery     Open Access   (Followers: 1)
Journal of Orthopaedic Surgery and Research     Open Access   (Followers: 8)
Journal of Orthopaedic Translation     Open Access  
Journal of Orthopaedic Trauma     Hybrid Journal   (Followers: 15)
Journal of Orthopaedics     Full-text available via subscription   (Followers: 3)
Journal of Orthopaedics and Allied Sciences     Open Access   (Followers: 9)
Journal of Orthopaedics and Spine     Open Access   (Followers: 3)
Journal of Orthopaedics and Traumatology     Open Access   (Followers: 16)
Journal of Orthopaedics, Trauma and Rehabilitation     Open Access   (Followers: 6)
Journal of Orthopedics & Rheumatology     Open Access  
Journal of Orthopedics, Traumatology and Rehabilitation     Open Access   (Followers: 6)
Journal of Pediatric Orthopaedics     Hybrid Journal   (Followers: 15)
Journal of Prosthetics and Orthotics     Hybrid Journal   (Followers: 14)
Journal of Scleroderma and Related Disorders     Hybrid Journal  
Journal of the American Academy of Orthopaedic Surgeons     Hybrid Journal   (Followers: 12)
Journal of the American Podiatric Medical Association     Full-text available via subscription   (Followers: 8)
Journal of Traumatic Stress     Hybrid Journal   (Followers: 25)
Knee Surgery, Sports Traumatology, Arthroscopy     Hybrid Journal   (Followers: 27)
Multiple Sclerosis and Related Disorders     Hybrid Journal   (Followers: 8)
Musculoskeletal Care     Hybrid Journal   (Followers: 19)
Musculoskeletal Science and Practice     Hybrid Journal   (Followers: 3)
Nigerian Journal of Orthopaedics and Trauma     Open Access  
North American Spine Society Journal (NASSJ)     Open Access   (Followers: 3)
OA Orthopaedics     Open Access   (Followers: 7)
Obere Extremität     Hybrid Journal   (Followers: 1)
Open Journal of Orthopedics     Open Access   (Followers: 3)
Open Journal of Orthopedics and Rheumatology     Open Access  
Open Journal of Trauma     Open Access  
Open Orthopaedics Journal     Open Access  
Operative Orthopädie und Traumatologie     Hybrid Journal  
Operative Techniques in Orthopaedics     Full-text available via subscription   (Followers: 6)
Orthopädie & Rheuma     Full-text available via subscription  
Orthopädie und Unfallchirurgie up2date     Hybrid Journal  
Orthopaedic Journal of Sports Medicine     Open Access   (Followers: 14)
Orthopaedic Nursing     Hybrid Journal   (Followers: 11)
Orthopaedic Proceedings     Partially Free  
Orthopaedic Surgery     Open Access   (Followers: 1)
Orthopaedics & Traumatology: Surgery & Research     Full-text available via subscription   (Followers: 6)
Orthopaedics and Trauma     Full-text available via subscription   (Followers: 28)
Orthopedic Clinics of North America     Full-text available via subscription   (Followers: 5)
Orthopedic Research and Reviews     Open Access   (Followers: 6)
Orthopedic Reviews     Open Access   (Followers: 7)
Orthopedics     Full-text available via subscription   (Followers: 6)
Orthoplastic Surgery     Open Access  
Osteoarthritis and Cartilage     Full-text available via subscription   (Followers: 20)
Osteoarthritis and Cartilage Open     Open Access  
Osteologie     Hybrid Journal  
Osteoporosis and Sarcopenia     Open Access  
OTA International     Open Access  
Paediatric Orthopaedics and Related Sciences     Open Access   (Followers: 3)
Pain Management in General Practice     Full-text available via subscription   (Followers: 12)
Prosthetics and Orthotics International     Hybrid Journal   (Followers: 8)
Revista Brasileira de Ortopedia     Hybrid Journal  
Revista Chilena de Ortopedia y Traumatología / Chilean Journal of Orthopaedics and Traumatology     Open Access  
Revista Colombiana de Ortopedia y Traumatología     Full-text available via subscription  
Revista Cubana de Ortopedia y Traumatologí­a     Open Access  
Revista de la Asociación Argentina de Ortopedia y Traumatología     Open Access  
Revista Española de Cirugía Ortopédica y Traumatología     Full-text available via subscription   (Followers: 1)
Revista Portuguesa de Ortopedia e Traumatologia     Open Access  
Revue de Chirurgie Orthopédique et Traumatologique     Full-text available via subscription   (Followers: 3)
Romanian Journal of Orthopaedic Surgery and Traumatology     Open Access  
SA Orthopaedic Journal     Open Access   (Followers: 2)
SICOT-J     Open Access   (Followers: 1)
Spine     Hybrid Journal   (Followers: 73)
Spine Journal     Hybrid Journal   (Followers: 26)
Sport-Orthopädie - Sport-Traumatologie - Sports Orthopaedics and Traumatology     Full-text available via subscription   (Followers: 3)
Strategies in Trauma and Limb Reconstruction     Open Access   (Followers: 1)
Techniques in Orthopaedics     Hybrid Journal   (Followers: 6)
Therapeutic Advances in Musculoskeletal Disease     Hybrid Journal   (Followers: 5)
Trauma     Hybrid Journal   (Followers: 5)
Trauma (Travma)     Open Access  
Trauma und Berufskrankheit     Hybrid Journal  
Traumatology     Full-text available via subscription   (Followers: 1)
Traumatology and Orthopedics of Russia     Open Access  
Zeitschrift für Orthopädie und Unfallchirurgie     Hybrid Journal   (Followers: 2)
Ортопедия, травматология и протезирование     Open Access  

           

Similar Journals
Journal Cover
Spine
Journal Prestige (SJR): 1.736
Citation Impact (citeScore): 3
Number of Followers: 73  
 
  Hybrid Journal Hybrid journal (It can contain Open Access articles)
ISSN (Print) 0362-2436 - ISSN (Online) 1528-1159
Published by LWW Wolters Kluwer Homepage  [297 journals]
  • Cost-utility Analysis of Neoadjuvant Teriparatide Therapy in Osteopenic
           Patients Undergoing Adult Spinal Deformity Surgery

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      Authors: Raad; Micheal; Ortiz-Babilonia, Carlos; Hassanzadeh, Hamid; Puvanesarajah, Varun; Kebaish, Khaled; Jain, Amit
      Abstract: imageStudy Design. A cost-utility analysis study.Objective. This study aims to evaluate the cost-utility of neoadjuvant teriparatide therapy in osteopenic patients undergoing adult spinal deformity (ASD) surgery.Summary of Background Data. There is increasing evidence supporting preoperative use of anabolic agents such as teriparatide for preoperative optimization of ASD patients with poor bone density. However, such treatments are associated with added costs. To our knowledge, the cost-utility of teriparatide in osteopenic patients undergoing ASD surgery has not been established.Materials and Methods. A decision-analysis model was developed for a hypothetical 68-year-old female patient with osteopenia (T score
      PubDate: Mon, 15 Aug 2022 00:00:00 GMT-
       
  • Preoperative Patient-reported Outcomes are not Associated With Sagittal
           and Spinopelvic Alignment in Degenerative Lumbar Spondylolisthesis

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      Authors: Karim; S. Mohammed; Fisher, Charles; Glennie, Andrew; Rampersaud, Raja; Street, John; Dvorak, Marcel; Paquette, Scott; Kwon, Brian K.; Charest-Morin, Raphaele; Ailon, Tamir; Manson, Neil; Abraham, Edward; Thomas, Ken; Urquhart, Jennifer; Bailey, Christopher S.
      Abstract: imageStudy Design. Prospective cohort study.Objective. The aim of this study was to evaluate whether sagittal and spinopelvic alignment correlate with preoperative patient-reported outcomes (PROs) in degenerative lumbar spondylolisthesis (DLS) with spinal stenosis.Summary of Background Data. Positive global sagittal balance and spinopelvic malalignment are strongly correlated with symptom severity in adult spinal deformity, but this correlation has not been evaluated in DLS.Methods. Patients were enrolled in the Canadian Spine Outcomes Research Network (CSORN) prospective DLS study at seven centers between January 2015 and May 2018. Correlation was assessed between the following preoperative PROs: Oswestry Disability Index (ODI), numeric rating scale (NRS) leg pain, and NRS back pain and the following preoperative sagittal radiographic parameters SS, PT, PI, SVA, LL, TK, T1SPI, T9SPI, and PI-LL. Patients were further divided into groups based on spinopelvic alignment: Group 1 PI-LL
      PubDate: Mon, 15 Aug 2022 00:00:00 GMT-
       
  • Factors Causing Delay in Discharge in Patients Eligible for Ambulatory
           Lumbar Fusion Surgery

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      Authors: Shahi; Pratyush; Vaishnav, Avani S.; Melissaridou, Dimitra; Sivaganesan, Ahilan; Sarmiento, Jose M.; Urakawa, Hikari; Araghi, Kasra; Shinn, Daniel J.; Song, Junho; Dalal, Sidhant S.; Iyer, Sravisht; Sheha, Evan D.; Dowdell, James E.; Qureshi, Sheeraz A.
      Abstract: imageStudy Design. Retrospective review of prospectively collected data.Objective. To analyze the postoperative factors that led delayed discharge in patients who would have been eligible for ambulatory lumbar fusion (ALF).Summary of Background Data. Assessing postoperative inefficiencies is vital to increase the feasibility of ALF.Materials and Methods. Patients who underwent single-level minimally invasive transforaminal lumbar interbody fusion and would have met the eligibility criteria for ALF were included. Length of stay (LOS); time in postanesthesia recovery unit (PACU); alertness and neurological examination, and pain scores at three and six hours; type of analgesia; time to physical therapy (PT) visit; reasons for PT nonclearance; time to per-oral (PO) intake; time to voiding; time to readiness for discharge were assessed. Time taken to meet each discharge criterion was calculated. Multiple regression analyses were performed to study the effect of variables on postoperative parameters influencing discharge.Results. Of 71 patients, 4% were discharged on the same day and 69% on postoperative day 1. PT clearance was the last-met discharge criterion in 93%. Sixty-six percent did not get PT evaluation on the day of surgery. Seventy-six percent required intravenous opioids and
      PubDate: Mon, 15 Aug 2022 00:00:00 GMT-
       
  • Upper versus Lower Lumbar Lordosis Corrections in Relation to Pelvic Tilt
           – An Essential Element in Surgical Planning for Sagittal Plane Deformity
           

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      Authors: Kim; Han Jo; Alluri, R. Kiran; Lafage, Renaud; Elysee, Jonathan; Smith, Justin S.; Mundis, Gregory M.; Shaffrey, Christopher I.; Ames, Christopher P.; Burton, Douglas C.; Klineberg, Eric O.; Bess, Shay; Schwab, Frank; Gupta, Munish; Lafage, Virginie; On behalf of the International Spine Study Group (ISSG
      Abstract: imageStudy Design. Retrospective study of a multicenter Adult Spinal Deformity (ASD) Database.Objective. To investigate the change in Pelvic tilt (PT) imparted by regional changes in lumbar lordosis at 2-year minimum follow upSummary of Background Data. The distribution of lumbar lordosis between L1-4 and L4-S1 is known to vary based on pelvic incidence (PI). However, the extent to which regional changes effect PT is not clearly elucidated. This information can be useful for ASD surgical planning.Methods. Operative patients from a multicenter ASD database were included with Lowest Instrumented Vertebrae (LIV) S1/Ilium,>5 levels of fusion, Proximal Junction Kyphosis (PJK) angle 5 degrees of change in lumbar lordosis from L4-S1 and L1-4. Radiographic analysis was performed evaluating Thoracic Kyphosis (TK), T10-L2 kyphosis (TL), L1-S1 lordosis (LL), L4-S1 lordosis, L1-4 lordosis, sagittal vertical axis (SVA) and PI-LL from preoperative to postoperative, and change at 2-years follow-up. Stepwise regression analysis was performed in order to determine the relationship between PT and the above radiographic parameters. Health-related quality of life (HRQOL) outcomes were also compared between preoperative and postoperative timepoints at 2 years.Results. 103 patients met inclusion for the study. There was improvement in all the radiographic parameters and HRQOLs at 2 years follow-up (p 
      PubDate: Mon, 15 Aug 2022 00:00:00 GMT-
       
  • Assessing Postoperative Pseudarthrosis in Anterior Cervical Discectomy and
           Fusion (ACDF) on Dynamic Radiographs Using Novel Angular Measurements

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      Authors: Balouch; Eaman; Burapachaisri, Aonnicha; Woo, Dainn; Norris, Zoe; Segar, Anand; Ayres, Ethan W.; Vasquez-Montes, Dennis; Buckland, Aaron J.; Razi, Afshin; Smith, Michael L.; Protopsaltis, Themistocles S.; Kim, Yong H.
      Abstract: imageStudy Design. A retrospective review of operative patients at a single institution.Objective. The aim was to validate a novel method of detecting pseudarthrosis on dynamic radiographs.Summary of Background Data. A common complication after anterior cervical discectomy and fusion is pseudarthrosis. A previously published method for detecting pseudarthrosis identifies a 1 mm difference in interspinous motion (ISM), which requires calibration of images and relies on anatomic landmarks difficult to visualize. An alternative is to use angles between spinous processes, which does not require calibration and relies on more visible landmarks.Materials and Methods. ISM was measured on dynamic radiographs using the previously published linear method and new angular method. Angles were defined by lines from screw heads to dorsal points of spinous processes. Angular cutoff for fusion was calculated using a regression equation correlating linear and angular measures, based on the 1 mm linear cutoff. Pseudarthrosis was assessed with both cutoffs. Sensitivity, specificity, inter-reliability and intrareliability of angular and linear measures used postoperative computed tomography (CT) as the reference.Results. A total of 242 fused levels (81 allograft, 84 polyetheretherketone, 40 titanium, 37 standalone cages) were measured in 143 patients (mean age 52.0±11.5, 42%F). 36 patients (66 levels) had 1-year postoperative CTs; 13 patients (13 levels) had confirmed pseudarthrosis. Linear and angular measurements closely correlated (R=0.872), with 2.3° corresponding to 1 mm linear ISM. Potential pseudarthroses was found in 28.0% and 18.5% levels using linear and angular cutoffs, respectively. Linear cutoff had 85% sensitivity, 87% specificity; angular cutoff had 85% sensitivity, 96% specificity for detecting CT-validated pseudarthrosis. Interclass correlation coefficients were 0.974 and 0.986 (both P
      PubDate: Mon, 15 Aug 2022 00:00:00 GMT-
       
  • Surgical Management of Type II Displaced Dens Fractures Improves One-year
           Mortality in Elderly Patients

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      Authors: Smith; Spencer; Somogyi, Rita; Lin, Clifford; Yoo, Jung U.
      Abstract: imageStudy Design. Retrospective cross-sectional analysis of US national data collected by PearlDiver Inc. database.Objective. To determine the rates of surgical/nonsurgical treatments and associated one-year mortality for displaced type II dens fractures without neurological deficit.Summary of Background Data. Existing literature on dens fractures includes small series of patients with highly variable surgical rates. These studies contain insufficient data to determine the benefits of surgical or nonsurgical treatment as surgeon bias in treatment and selection of patients have significant effects on the results.Materials and Methods. Displaced type II dens fractures and upper cervical surgeries were identified using their respective International Classification of Diseases, 10th Revision (ICD-10) diagnosis and Current Procedural Terminology (CPT) codes. Inclusion criteria included patients older than 65, diagnosed with a displaced type II dens fracture, absent neurological damage, during the years 2015 to 2018. Age, sex, ICD-10 diagnosis codes, CPT codes, displacement type, and Elixhauser Comorbidity Index scores were obtained through the PearlDiver database. Patient-related variables and one-year mortality associated with surgical versus nonsurgical treatment were compared using univariate χ2 analysis, odds ratios, and multivariate logistic regression analysis.Results. Among the 5300 patients who met our inclusion criteria, 59% (n=3108) were female, the mean age was 76.6 (±3.9) years old, and the average Elixhauser Comorbidity Index was 7.1 (±4.0). Only 8.3% (n=437) had surgical treatment for the displaced dens fracture. Multivariate logistic regression analysis for one-year mortality showed surgery was associated with decreased one-year mortality in all patients (z=−6.26; P
      PubDate: Mon, 15 Aug 2022 00:00:00 GMT-
       
  • A New Automated AI-Assisted System to Assess Cervical Disc Herniation

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      Authors: Fu; Su; Zhang, Chunlin; Yan, Xu; Li, Dongzhe; Wang, Yongkui; Dong, Chao; Cao, Zhengming; Ning, Yongming; Shao, Chenglong; Yang, Tengyue
      Abstract: imageStudy Design. An algorithm was developed with MATLAB platform to automatically quantify the volume of cervical disc herniation (CDH) based on the sagittal magnetic resonance images. This automated program was used for CDH data set, and then compared with manual measurement results confirming its reliability.Objective. The aim was to develop a new software for automated CDH volume measurement.Summary of Background Data. CDH compresses the spinal cord, regarding as the leading cause of cervical myelopathy. However, the CDH volume, of great value to clinical symptoms, can be only manually measured with no-excellent but acceptable interobserver reliability. This was due to the manual error of outlining CDH area and inclusion of structure posterior vertebra. No studies has proposed such an automated algorithm of CDH volume quantification which is standardised to quantify the accurate volume of CDH thus helping doctors easily evaluate CDH progressing.Methods. The algorithm of CDH volume measurement was proposed. This program was then tested for 490 CDHs data set, from 185 patients with two repeated magnetic resonance imaging detections. Three individual observers manually measured the volumes of these CDHs, to justify the accuracy of this software. CDH volume was either in the classic way or the revised way excluding the influence of structure posterior vertebra.Results. The automated software was successfully developed on MATLAB platform, with no difference found with manual measurements (average level) in CDH volume measurement. The change ratios in CDH volumes were profoundly consistent with manual observation, showing the error of 5.8% in median. The revised method elevated the absolute value of ratio by amplifying the percentage change.Conclusion. Our developed automated volumetry system was an standardized and accurate way, with selective removal module of structure posterior vertebra, replaceable for manual volume measurement of CDH, which was useful for spinal surgeons diagnosing and treating CDH disease.
      PubDate: Mon, 15 Aug 2022 00:00:00 GMT-
       
  • Does the Distal Level Really Matter in the Setting of Health-Related
           Quality of Life' Assessment of a Series of Adolescent Idiopathic
           Scoliosis Patients at More Than 7 Years Following Surgery

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      Authors: Marie-Hardy; Laura; Besse, Micaela; Chatelain, Léonard; Pannier, Stéphanie; Glorion, Christophe; Ferrero, Emmanuelle
      Abstract: imageStudy Design. Retrospective longitudinal studyObjective. The main goal of this study was to measure the disability after AIS correction, according to the LIV.Summary of Background Data. Adolescent idiopathic scoliosis (AIS) is a three-dimensional deformity of the spine that may require surgical correction. If the upper and lower instrumented levels (UIV and LIV) of these fusions are defined by the characteristics of the curve, the long-term consequences of the LIV choices are still partially unknown.Methods. This retrospective longitudinal study collected demographic, radiologic (Lenke classification, Cobb angle), and surgical data (approach, LIV, UIV) on 116 patients operated for AIS fusion on a specialized pediatric spine center were collected. All participants answered SRS30, SF12, lumbar and leg pain Visual Analogue Scales (VAS) at last follow-up. Statistical analysis between LIV (T12L1, L2, L3 or L4L5) and clinical data at last follow-up was realized.Results. The mean follow-up was 87months. The mean increase of back pain VAS per UIV level was 9 mm. No statistically significant difference between the different LIV was found, for SRS30 or SF12 MCS (mental component scale). There was a statistically significant difference between L3 UIV and L4L5 UIV for SF-12 PCS (physical component scale); (P = 0.03).Conclusion. The long-term consequences of LIV choice mostly affect levels distal to L3. If the LIV is mostly defined by the characteristics of the curve, one level caudally corresponds to +9 mm of back pain VAS at 7 years of follow-up. Surgeons may be aware of the long-term consequence of LIV choice and patients be informed.
      PubDate: Mon, 15 Aug 2022 00:00:00 GMT-
       
  • Sagittal Balance Using Position and Orientation of Each Vertebra in an
           Asymptomatic Population

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      Authors: Gille; Olivier; Skalli, Wafa; Mathio, Paul; Kouyoumdjian, Pascal; Boishardy, Alice; Gajny, Laurent; Roscop, Cecile
      Abstract: imageStudy Design. A monocentric, retrospective radiographic study with 99 asymptomatic volunteers.Objective. The authors performed the postural analysis commonly scheduled when evaluating sagittal balance in a vertebra-by-vertebra manner by enrolling an asymptomatic population. They measured the position and angulation of each vertebra to reveal those for which the spatial positioning could be relevant during spinal surgeries.Summary of Background Data. Several recent publications detailed the sagittal alignment parameters and focus on global analysis parameters. Some patients with identical commonly evaluated spinal parameters have exhibited very different profiles, with notable differences in vertebral positions and orientations. Therefore, a fine segmental analysis of position of each vertebra could be interest to gain understanding of spine alignment.Materials and Methods. The authors obtained full-spine EOS x-rays of 99 volunteers in the standard free-standing position. We used a validated three-dimensional reconstruction technique to extract current spinal parameters and the positions and angulations of all vertebrae and lumbar discs. Particular attention was paid to the positions and angulations of the apical and transitional vertebrae in the general population and in subgroups according to pelvic incidence (PI).Results. T1 was the most common transitional cervicothoracic vertebra (in 89.9% of subjects) and was oriented downwards by an average of 22.0° (SD=7.3°, minimum=2.3°, maximum=40.1°). The thoracic apex trio of T5 (22.2%), T6 (28.3%), and T7 (36.4%) were equally found. The transitional thoracolumbar vertebrae were L1 (39.4%) and T12 (33.3%). The lumbar apex was usually the L3-L4 disc (36.4%). T1 seemed to be the transitional vertebra (90%) irrespective of the PI. For the other relevant vertebrae, the greater the PI, the more cranial the vertebra.Conclusions. We performed a detailed three-dimensional assessment of overall spinal balance using positional and rotational parameters. The positions and orientations of all vertebrae were specified, particularly the apical and transitional vertebrae.Level of Evidence. Level 3.
      PubDate: Mon, 15 Aug 2022 00:00:00 GMT-
       
  • Blockade of Osteoclast-Mediated Bone Resorption With a RANKL-Inhibitor
           Enhances Bone Formation in a Rat Spinal Fusion Model

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      Authors: Payne; Karin A.; Shaw, Nichole M.; Erickson, Christopher B.; Yarger, Peter; Yu, Yangyi; Baldini, Todd; Kleck, Christopher J.; Patel, Vikas V.; Burger, Evalina L.
      Abstract: imageStudy Design. Rat spine fusion model.Objective. The present study aimed to determine whether administration of osteoprotegerin (OPG) in a rat model of spinal fusion increases bone volume, bone density, and decreases osteoclasts in the fusion mass.Summary of Background Data. OPG is a soluble RANK-ligand inhibitor that blocks osteoclast differentiation and activation. This makes it a potential agent to control the remodeling process and enhance bone mass during spinal fusion.Materials and Methods. Forty-eight male Sprague-Dawley rats received a one-level spinal fusion of L4–L5 with bone allograft. Rats were then divided into four groups according to initiation of treatment: (1) saline on day 0 (saline), (2) OPG on day 0 (OPG D0), (3) OPG on day 10 (OPG D10), and (4) OPG on day 21 (OPG D21) postsurgery. After their initial injection, rats received weekly subcutaneous injections of OPG (10 mg/kg) and were euthanized six weeks postsurgery. MicroCT analysis of the fusion site and histological analysis of bone surface for quantification of osteoclast lining was performed.Results. Increased bone volume in the fusion site and around the spinous process was seen in OPG D0 and OPG D10 when compared with saline. Mean trabecular thickness was greater in all groups receiving OPG compared with saline, with OPG D0 and OPG D10 having significantly greater mean trabecular thickness than OPG D21. All OPG groups had less bone surface lined with osteoclasts when compared with Saline, with OPG D0 and OPG D10 having fewer than OPG D21.Conclusions. This study indicates that OPG inhibited osteoclast bone resorption, which led to greater bone at the fusion site. Future studies investigating OPG on its own or in combination with an osteogenic factor to improve spinal fusion outcomes are warranted to further elucidate its potential therapeutic effect.
      PubDate: Mon, 15 Aug 2022 00:00:00 GMT-
       
  • Novel Pedicle Navigator Based on Micro Inertial Navigation System (MINS)
           and Bioelectric Impedance Analysis (BIA) to Facilitate Pedicle Screw
           Placement in Spine Surgery: Study in a Porcine Model

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      Authors: Lin; Wentao; Xie, Faqin; Zhao, Shuofeng; Lin, Songhui; He, Chaoqin; Wang, Zhiyun
      Abstract: imageStudy Design. A porcine model.Objective. The study aims to design a novel pedicle navigator based on micro-inertial navigation system (MINS) and bioelectrical impedance analysis (BIA) to assist place pedicle screw placement and validate the utility of the system in enhancing pedicle screw placement.Summary of Background Data. The incidence of pedicle screw malpositioning in complicated spinal surgery is still high.Procedures such as computed tomography image-guided navigation, and robot-assisted surgery have been used to improve the precision of pedicle screw placement, but it remains an unmet clinical need.Methods. The miniaturized integrated framework containing MINS was mounted inside the hollow handle of the pedicle finder. The inner core was complemented by a high-intensity electrode for measuring bioelectric impedance. Twelve healthy male Wuzhishan minipigs of similar age and weight were used in this experiment and randomized to the MINS-BIA or freehand (FH) group. Pedicle screw placement was determined according to the modified Gertzbein–Robbins grading system on computed tomography images. An impedance detected by probe equal to the baseline value for soft tissue was defined as cortical bone perforation.Results. A total of 216 screws were placed in 12 minipigs. There were 15 pedicle breaches in the navigator group and 31 in the FH group; the detection rates of these breaches were 14 of 15 (93.3%) and 25 of 31 (80.6%), respectively, with a statistically significant difference between groups. The mean offsets between the planned and postoperatively measured tilt angles of the screw trajectory were 4.5° ± 5.5° in the axial plane and 4.8° ± 3.3° in the sagittal plane with the navigator system and 7.0° ± 5.1° and 7.7° ± 4.7°, respectively, with the FH technique; the differences were statistically significant.Conclusion. A novel and portable navigator based on MINS and BIA could be beneficial for improving or maintaining accuracy while reducing overall radiation exposure.
      PubDate: Mon, 15 Aug 2022 00:00:00 GMT-
       
  • Automated Segmentation of Spinal Muscles From Upright Open MRI Using a
           Multiscale Pyramid 2D Convolutional Neural Network

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      Authors: Dourthe, Benjamin; Shaikh, Noor; Pai S; Anoosha; Fels, Sidney; Brown, Stephen H.M.; Wilson, David R.; Street, John; Oxland, Thomas R.
      Abstract: imageStudy Design. Randomized trial.Objective. To implement an algorithm enabling the automated segmentation of spinal muscles from open magnetic resonance images in healthy volunteers and patients with adult spinal deformity (ASD).Summary of Background Data. Understanding spinal muscle anatomy is critical to diagnosing and treating spinal deformity.Muscle boundaries can be extrapolated from medical images using segmentation, which is usually done manually by clinical experts and remains complicated and time-consuming.Methods. Three groups were examined: two healthy volunteer groups (N = 6 for each group) and one ASD group (N = 8 patients) were imaged at the lumbar and thoracic regions of the spine in an upright open magnetic resonance imaging scanner while maintaining different postures (various seated, standing, and supine). For each group and region, a selection of regions of interest (ROIs) was manually segmented. A multiscale pyramid two-dimensional convolutional neural network was implemented to automatically segment all defined ROIs. A five-fold crossvalidation method was applied and distinct models were trained for each resulting set and group and evaluated using Dice coefficients calculated between the model output and the manually segmented target.Results. Good to excellent results were found across all ROIs for the ASD (Dice coefficient>0.76) and healthy (dice coefficient> 0.86) groups.Conclusion. This study represents a fundamental step toward the development of an automated spinal muscle properties extraction pipeline, which will ultimately allow clinicians to have easier access to patient-specific simulations, diagnosis, and treatment.
      PubDate: Mon, 15 Aug 2022 00:00:00 GMT-
       
  • Letter to the Editor Regarding “Development of Tuberculosis Spine
           Instability Score (TSIS)”

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      Authors: Rajasekaran; Shanmuganathan; Karuppanan Sukumaran, Sri Vijay Anand; Murugan, Chandhan
      Abstract: No abstract available
      PubDate: Mon, 15 Aug 2022 00:00:00 GMT-
       
 
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