ALEXANDER ROPPER

Concepts (258)

Concepts are derived automatically from a person's publications.
Concepts are listed by decreasing relevance which is based on many factors, including how many publications the person wrote about that topic, how long ago those publications were written, and how many publications other people have written on that same topic.


Name Number of Publications Most Recent Publication Publications by All Authors Concept Score Why?
Spinal Fusion
13
2025
110
5.370
Why?
Spinal Cord Injuries
8
2020
275
2.120
Why?
Cervical Vertebrae
8
2025
105
1.760
Why?
Atlanto-Axial Joint
3
2021
21
1.450
Why?
Pedicle Screws
2
2022
3
1.380
Why?
Spinal Diseases
2
2021
43
1.380
Why?
Intervertebral Disc Displacement
3
2025
19
1.360
Why?
Bone Transplantation
5
2021
50
1.280
Why?
Lumbar Vertebrae
6
2025
103
1.190
Why?
Central Nervous System Vascular Malformations
3
2021
18
1.150
Why?
Spinal Cord Compression
3
2017
26
1.080
Why?
Intervertebral Disc Degeneration
5
2018
15
1.060
Why?
Spinal Cord Diseases
2
2021
29
1.050
Why?
Surgical Wound Infection
2
2022
262
0.950
Why?
Laminectomy
4
2020
23
0.920
Why?
Diskectomy
1
2025
12
0.910
Why?
Embolization, Therapeutic
2
2021
221
0.900
Why?
Surgery, Computer-Assisted
2
2022
65
0.880
Why?
Spinal Neoplasms
3
2025
52
0.860
Why?
Thoracic Vertebrae
7
2025
66
0.860
Why?
Tomography, X-Ray Computed
9
2025
2026
0.850
Why?
Occipital Bone
3
2021
20
0.820
Why?
Neck Pain
1
2022
16
0.780
Why?
Mesenchymal Stem Cell Transplantation
3
2019
72
0.770
Why?
Spinal Cord Neoplasms
3
2019
63
0.750
Why?
Physical Examination
1
2022
160
0.710
Why?
Kyphosis
1
2021
22
0.690
Why?
Surgical Flaps
2
2022
184
0.690
Why?
Radiation Injuries
1
2021
134
0.650
Why?
Postoperative Complications
8
2019
2968
0.630
Why?
Meningocele
1
2019
18
0.630
Why?
Pseudarthrosis
1
2019
6
0.610
Why?
Neuronavigation
1
2018
8
0.590
Why?
Spondylolisthesis
1
2018
6
0.590
Why?
Neural Stem Cells
2
2016
130
0.560
Why?
Stem Cell Transplantation
2
2016
226
0.550
Why?
Epidural Abscess
1
2017
11
0.530
Why?
Tissue Scaffolds
4
2019
91
0.520
Why?
Meningomyelocele
1
2019
249
0.500
Why?
Humans
54
2025
126089
0.500
Why?
Spinal Cord
3
2018
244
0.480
Why?
Spinal Fractures
3
2025
44
0.480
Why?
Disease Management
2
2021
533
0.480
Why?
Head and Neck Neoplasms
1
2021
586
0.480
Why?
Neurosurgical Procedures
5
2022
297
0.430
Why?
Fractures, Compression
3
2025
12
0.400
Why?
Genetic Therapy
2
2016
682
0.380
Why?
Angiography
1
2012
189
0.370
Why?
Decompressive Craniectomy
1
2011
10
0.370
Why?
Glioma
1
2016
478
0.360
Why?
Bone Morphogenetic Proteins
1
2012
123
0.360
Why?
Corynebacterium Infections
1
2011
6
0.360
Why?
Body Fluids
1
2011
46
0.360
Why?
Image Interpretation, Computer-Assisted
1
2012
228
0.350
Why?
Drainage
1
2012
249
0.340
Why?
Klippel-Feil Syndrome
2
2020
8
0.340
Why?
Female
33
2025
67915
0.340
Why?
Radiation Dosage
1
2011
126
0.330
Why?
Polymorphism, Single Nucleotide
6
2018
2750
0.330
Why?
Ossification of Posterior Longitudinal Ligament
3
2016
3
0.330
Why?
Brain Ischemia
2
2012
253
0.330
Why?
Abscess
1
2011
138
0.320
Why?
Imaging, Three-Dimensional
1
2012
379
0.320
Why?
Low Back Pain
2
2022
39
0.320
Why?
Occupational Exposure
1
2011
126
0.320
Why?
Minimally Invasive Surgical Procedures
1
2011
190
0.310
Why?
Spine
2
2021
136
0.290
Why?
Rats, Sprague-Dawley
5
2019
1128
0.280
Why?
Adult
20
2025
30254
0.270
Why?
Male
27
2025
62089
0.270
Why?
Osteoporotic Fractures
2
2018
27
0.270
Why?
Middle Aged
20
2025
27331
0.270
Why?
Absorbable Implants
2
2018
25
0.270
Why?
Aged
14
2025
20005
0.270
Why?
Acute Disease
3
2025
1046
0.240
Why?
Hindlimb
2
2017
74
0.240
Why?
Retrospective Studies
10
2025
16770
0.240
Why?
Spinal Injuries
1
2025
30
0.230
Why?
Disease Models, Animal
1
2015
4409
0.220
Why?
Stroke
2
2012
1005
0.220
Why?
Physicians
1
2011
618
0.220
Why?
Genetic Predisposition to Disease
5
2017
3256
0.210
Why?
Transplantation, Autologous
2
2021
264
0.200
Why?
Wounds, Nonpenetrating
1
2025
200
0.200
Why?
Magnetic Resonance Imaging
4
2025
3680
0.200
Why?
Rats
4
2019
3387
0.200
Why?
Diagnosis, Differential
3
2022
1845
0.190
Why?
Joint Instability
2
2020
57
0.190
Why?
Hydrocephalus
2
2017
280
0.180
Why?
Lordosis
1
2021
7
0.180
Why?
Neurosurgery
1
2022
73
0.180
Why?
Foramen Magnum
1
2021
4
0.180
Why?
Scapula
1
2021
14
0.180
Why?
Ilium
1
2021
23
0.170
Why?
Cadaver
1
2021
115
0.170
Why?
Ribs
1
2021
53
0.170
Why?
Spinal Stenosis
1
2020
8
0.170
Why?
Prospective Studies
2
2022
6093
0.160
Why?
Decompression, Surgical
3
2020
82
0.160
Why?
MicroRNAs
2
2017
871
0.160
Why?
Subdural Effusion
1
2019
8
0.160
Why?
Polymorphism, Genetic
2
2013
788
0.150
Why?
Coculture Techniques
2
2017
229
0.150
Why?
Contusions
1
2018
16
0.150
Why?
Intraoperative Neurophysiological Monitoring
1
2018
14
0.150
Why?
Therapeutic Irrigation
1
2018
42
0.150
Why?
Thymidylate Synthase
1
2018
20
0.140
Why?
Osteoporosis, Postmenopausal
1
2018
31
0.140
Why?
Arachnoid Cysts
1
2017
9
0.140
Why?
Methylenetetrahydrofolate Reductase (NADPH2)
1
2018
64
0.140
Why?
Dura Mater
1
2017
23
0.140
Why?
Animals
8
2019
33120
0.140
Why?
Cerebral Ventricle Neoplasms
1
2017
14
0.130
Why?
Hemangioma, Cavernous, Central Nervous System
1
2017
20
0.130
Why?
Third Ventricle
1
2017
32
0.130
Why?
Hemangioma, Cavernous
1
2017
19
0.130
Why?
Polyglycolic Acid
1
2017
20
0.130
Why?
Trauma Severity Indices
1
2017
86
0.130
Why?
Craniotomy
2
2020
100
0.130
Why?
Ganglia, Spinal
1
2017
62
0.130
Why?
Flucytosine
1
2016
10
0.130
Why?
Chondrosarcoma
1
2016
13
0.130
Why?
Cytosine Deaminase
1
2016
15
0.130
Why?
Hyaluronic Acid
1
2017
101
0.130
Why?
Locomotion
1
2017
59
0.130
Why?
Neuroimaging
1
2020
357
0.130
Why?
Thymidine Kinase
1
2016
88
0.130
Why?
Osteotomy
1
2016
46
0.120
Why?
Ganciclovir
1
2016
100
0.120
Why?
Lactic Acid
1
2017
143
0.120
Why?
Fluorouracil
1
2016
133
0.120
Why?
Scoliosis
1
2017
136
0.120
Why?
Reoperation
1
2019
788
0.120
Why?
Spinal Dysraphism
1
2019
273
0.120
Why?
Genetic Engineering
1
2016
159
0.120
Why?
Reflex
1
2015
36
0.120
Why?
Total Disc Replacement
1
2015
2
0.120
Why?
Cervical Cord
1
2015
9
0.120
Why?
Lipopolysaccharides
1
2017
292
0.120
Why?
Joint Prosthesis
1
2015
17
0.110
Why?
Recovery of Function
1
2017
429
0.110
Why?
Bone Diseases, Metabolic
1
2015
53
0.110
Why?
Myelin Sheath
1
2015
119
0.110
Why?
Random Allocation
1
2015
414
0.110
Why?
Cranial Sutures
1
2014
34
0.110
Why?
Psychomotor Performance
1
2015
172
0.110
Why?
Case-Control Studies
6
2018
3303
0.100
Why?
Republic of Korea
4
2016
51
0.100
Why?
Population
1
2013
22
0.100
Why?
Vitamin K Epoxide Reductases
1
2013
6
0.100
Why?
Bone Marrow Cells
1
2015
234
0.100
Why?
Radiography
2
2015
749
0.100
Why?
Xenograft Model Antitumor Assays
1
2016
930
0.100
Why?
Analysis of Variance
1
2015
947
0.100
Why?
Blood Patch, Epidural
1
2012
5
0.100
Why?
Intracranial Hypotension
1
2012
11
0.100
Why?
Sesquiterpenes
1
2013
26
0.100
Why?
Alkaloids
1
2013
36
0.100
Why?
Skull
1
2014
147
0.100
Why?
Nitric Oxide Synthase Type III
1
2013
189
0.100
Why?
Intracranial Arteriovenous Malformations
1
2012
33
0.090
Why?
Sclerosis
1
2012
29
0.090
Why?
Fecal Incontinence
1
2012
72
0.090
Why?
Endoscopy
1
2014
280
0.090
Why?
Urinary Incontinence
1
2012
72
0.090
Why?
Transforming Growth Factor beta1
1
2013
134
0.090
Why?
Internship and Residency
1
2022
1194
0.090
Why?
Brain Infarction
1
2012
28
0.090
Why?
Melanoma
1
2019
898
0.090
Why?
Vascular Endothelial Growth Factor Receptor-2
1
2012
66
0.090
Why?
Craniosynostoses
1
2014
139
0.090
Why?
Moyamoya Disease
1
2012
40
0.090
Why?
Cerebrovascular Disorders
1
2012
111
0.090
Why?
Intracranial Aneurysm
1
2012
81
0.090
Why?
Radiosurgery
1
2012
105
0.090
Why?
Vascular Endothelial Growth Factor A
1
2013
330
0.090
Why?
Fluoroscopy
1
2011
92
0.080
Why?
Prognosis
1
2020
4709
0.080
Why?
Aged, 80 and over
1
2021
6552
0.080
Why?
Pain
1
2013
428
0.080
Why?
Genotype
4
2017
2600
0.070
Why?
Treatment Outcome
8
2017
12328
0.070
Why?
Back Pain
2
2022
28
0.070
Why?
Time Factors
2
2015
6016
0.070
Why?
Inflammation
1
2015
1418
0.070
Why?
Follow-Up Studies
4
2017
5050
0.060
Why?
Pain Measurement
2
2017
345
0.060
Why?
Young Adult
5
2017
9616
0.050
Why?
Haplotypes
2
2016
528
0.050
Why?
Gene Frequency
2
2016
738
0.050
Why?
Cerebral Angiography
2
2012
104
0.050
Why?
Machine Learning
1
2025
320
0.050
Why?
Personnel Staffing and Scheduling
1
2022
77
0.040
Why?
Evidence-Based Medicine
1
2025
606
0.040
Why?
Workload
1
2022
148
0.040
Why?
Societies, Medical
1
2025
726
0.040
Why?
Atlanto-Occipital Joint
1
2020
4
0.040
Why?
Anti-Inflammatory Agents, Non-Steroidal
1
2022
293
0.040
Why?
Odontoid Process
1
2020
10
0.040
Why?
Alleles
2
2016
1611
0.040
Why?
Bone Wires
1
2019
7
0.040
Why?
Hospitals
1
2022
417
0.040
Why?
Cell Differentiation
2
2017
1849
0.040
Why?
Bone Screws
1
2019
52
0.040
Why?
Disease Progression
1
2025
2099
0.040
Why?
Polyesters
1
2018
34
0.040
Why?
Polyradiculopathy
1
2017
2
0.040
Why?
Lysine
1
2018
173
0.030
Why?
Injections, Intralesional
1
2017
43
0.030
Why?
Intervertebral Disc
1
2017
13
0.030
Why?
3' Untranslated Regions
1
2018
155
0.030
Why?
Education, Medical, Graduate
1
2022
532
0.030
Why?
Neoplasms, Second Primary
1
2019
138
0.030
Why?
Postmenopause
1
2017
140
0.030
Why?
Headache
1
2017
104
0.030
Why?
Water
1
2017
186
0.030
Why?
Neurologic Examination
1
2016
192
0.030
Why?
Polymers
1
2016
105
0.030
Why?
Cell Engineering
1
2015
19
0.030
Why?
Transcription Factor HES-1
1
2015
17
0.030
Why?
Lewis X Antigen
1
2015
11
0.030
Why?
CD24 Antigen
1
2015
30
0.030
Why?
Dipeptides
1
2015
64
0.030
Why?
Receptor, Notch1
1
2015
75
0.030
Why?
Adipose Tissue
1
2017
475
0.030
Why?
Adolescent
4
2013
19936
0.030
Why?
Disability Evaluation
1
2015
188
0.030
Why?
Microscopy, Confocal
1
2015
360
0.030
Why?
Polymorphism, Restriction Fragment Length
1
2013
137
0.030
Why?
Feasibility Studies
1
2016
790
0.030
Why?
Orthopedic Procedures
1
2014
75
0.030
Why?
Chronic Disease
1
2017
1187
0.020
Why?
Patient Safety
1
2017
434
0.020
Why?
Urinary Bladder Diseases
1
2012
33
0.020
Why?
Survival
1
2012
15
0.020
Why?
Angiography, Digital Subtraction
1
2012
45
0.020
Why?
Intracranial Hemorrhages
1
2012
69
0.020
Why?
Pilot Projects
1
2016
1386
0.020
Why?
Glasgow Coma Scale
1
2012
195
0.020
Why?
Subarachnoid Hemorrhage
1
2012
63
0.020
Why?
Homeodomain Proteins
1
2015
538
0.020
Why?
Accidents, Traffic
1
2012
104
0.020
Why?
Skin Neoplasms
1
2019
880
0.020
Why?
Temporal Lobe
1
2012
115
0.020
Why?
Models, Biological
1
2016
1370
0.020
Why?
Proteins
1
2016
1015
0.020
Why?
Behavior, Animal
1
2013
495
0.020
Why?
Genetic Association Studies
1
2013
807
0.020
Why?
United States
1
2025
11204
0.020
Why?
Sex Factors
1
2013
1294
0.020
Why?
Cells, Cultured
1
2015
2902
0.020
Why?
Seizures
1
2012
847
0.020
Why?
Brain Injuries
1
2012
693
0.020
Why?
Brain Neoplasms
1
2012
1224
0.010
Why?
Cohort Studies
1
2012
4920
0.010
Why?
Signal Transduction
1
2015
4468
0.010
Why?
Infant
1
2014
12762
0.010
Why?
Child
1
2012
25062
0.010
Why?
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Concepts (258)
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