ALEXANDER ROPPER

Concepts (260)

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
118
5.240
Why?
Spinal Cord Injuries
8
2020
278
2.090
Why?
Cervical Vertebrae
8
2025
117
1.730
Why?
Spinal Diseases
3
2026
47
1.590
Why?
Bone Transplantation
6
2026
52
1.500
Why?
Atlanto-Axial Joint
3
2021
21
1.430
Why?
Pedicle Screws
2
2022
3
1.360
Why?
Intervertebral Disc Displacement
3
2025
20
1.340
Why?
Lumbar Vertebrae
6
2025
109
1.170
Why?
Central Nervous System Vascular Malformations
3
2021
19
1.130
Why?
Spinal Cord Compression
3
2017
31
1.060
Why?
Spinal Neoplasms
4
2026
74
1.060
Why?
Intervertebral Disc Degeneration
5
2018
17
1.050
Why?
Spinal Cord Diseases
2
2021
34
1.030
Why?
Surgical Wound Infection
2
2022
271
0.930
Why?
Laminectomy
4
2020
24
0.910
Why?
Diskectomy
1
2025
13
0.900
Why?
Embolization, Therapeutic
2
2021
225
0.880
Why?
Surgery, Computer-Assisted
2
2022
71
0.870
Why?
Thoracic Vertebrae
7
2025
67
0.850
Why?
Tomography, X-Ray Computed
9
2025
2122
0.820
Why?
Occipital Bone
3
2021
24
0.810
Why?
Neck Pain
1
2022
20
0.770
Why?
Mesenchymal Stem Cell Transplantation
3
2019
81
0.750
Why?
Spinal Cord Neoplasms
3
2019
68
0.730
Why?
Physical Examination
1
2022
170
0.700
Why?
Kyphosis
1
2021
21
0.690
Why?
Surgical Flaps
2
2022
187
0.680
Why?
Radiation Injuries
1
2021
146
0.630
Why?
Postoperative Complications
9
2026
3134
0.630
Why?
Meningocele
1
2019
18
0.620
Why?
Pseudarthrosis
1
2019
7
0.600
Why?
Neuronavigation
1
2018
10
0.590
Why?
Spondylolisthesis
1
2018
6
0.580
Why?
Neural Stem Cells
2
2016
136
0.550
Why?
Stem Cell Transplantation
2
2016
236
0.540
Why?
Epidural Abscess
1
2017
11
0.520
Why?
Tissue Scaffolds
4
2019
92
0.510
Why?
Humans
55
2026
131781
0.490
Why?
Meningomyelocele
1
2019
272
0.480
Why?
Spinal Fractures
3
2025
46
0.480
Why?
Disease Management
2
2021
565
0.470
Why?
Spinal Cord
3
2018
269
0.470
Why?
Head and Neck Neoplasms
1
2021
632
0.460
Why?
Neurosurgical Procedures
5
2022
317
0.420
Why?
Fractures, Compression
3
2025
12
0.400
Why?
Angiography
1
2012
188
0.370
Why?
Genetic Therapy
2
2016
726
0.370
Why?
Decompressive Craniectomy
1
2011
11
0.360
Why?
Bone Morphogenetic Proteins
1
2012
126
0.360
Why?
Corynebacterium Infections
1
2011
6
0.360
Why?
Glioma
1
2016
498
0.350
Why?
Body Fluids
1
2011
46
0.350
Why?
Drainage
1
2012
253
0.340
Why?
Image Interpretation, Computer-Assisted
1
2012
241
0.340
Why?
Klippel-Feil Syndrome
2
2020
8
0.330
Why?
Female
34
2026
71221
0.330
Why?
Radiation Dosage
1
2011
136
0.330
Why?
Ossification of Posterior Longitudinal Ligament
3
2016
3
0.330
Why?
Polymorphism, Single Nucleotide
6
2018
2859
0.320
Why?
Brain Ischemia
2
2012
261
0.320
Why?
Abscess
1
2011
137
0.320
Why?
Low Back Pain
2
2022
40
0.320
Why?
Imaging, Three-Dimensional
1
2012
397
0.320
Why?
Occupational Exposure
1
2011
138
0.310
Why?
Minimally Invasive Surgical Procedures
1
2011
201
0.310
Why?
Spine
2
2021
148
0.280
Why?
Rats, Sprague-Dawley
5
2019
1146
0.280
Why?
Adult
21
2026
31710
0.280
Why?
Middle Aged
21
2026
28897
0.270
Why?
Aged
15
2026
21263
0.270
Why?
Male
28
2026
65290
0.270
Why?
Osteoporotic Fractures
2
2018
30
0.270
Why?
Absorbable Implants
2
2018
25
0.270
Why?
Retrospective Studies
11
2026
17667
0.250
Why?
Hindlimb
2
2017
73
0.240
Why?
Acute Disease
3
2025
1153
0.240
Why?
Spinal Injuries
1
2025
33
0.220
Why?
Disease Models, Animal
1
2015
4684
0.220
Why?
Stroke
2
2012
1049
0.220
Why?
Physicians
1
2011
634
0.210
Why?
Genetic Predisposition to Disease
5
2017
3416
0.210
Why?
Transplantation, Autologous
2
2021
269
0.200
Why?
Rats
4
2019
3460
0.190
Why?
Wounds, Nonpenetrating
1
2025
215
0.190
Why?
Magnetic Resonance Imaging
4
2025
3917
0.190
Why?
Diagnosis, Differential
3
2022
1912
0.190
Why?
Joint Instability
2
2020
57
0.190
Why?
Hydrocephalus
2
2017
292
0.180
Why?
Lordosis
1
2021
8
0.180
Why?
Neurosurgery
1
2022
73
0.180
Why?
Foramen Magnum
1
2021
7
0.180
Why?
Scapula
1
2021
14
0.170
Why?
Ilium
1
2021
23
0.170
Why?
Cadaver
1
2021
121
0.170
Why?
Ribs
1
2021
55
0.170
Why?
Spinal Stenosis
1
2020
9
0.160
Why?
Decompression, Surgical
3
2020
89
0.160
Why?
MicroRNAs
2
2017
895
0.160
Why?
Prospective Studies
2
2022
6509
0.160
Why?
Subdural Effusion
1
2019
8
0.150
Why?
Polymorphism, Genetic
2
2013
794
0.150
Why?
Coculture Techniques
2
2017
232
0.150
Why?
Contusions
1
2018
16
0.150
Why?
Intraoperative Neurophysiological Monitoring
1
2018
14
0.140
Why?
Therapeutic Irrigation
1
2018
44
0.140
Why?
Thymidylate Synthase
1
2018
20
0.140
Why?
Osteoporosis, Postmenopausal
1
2018
31
0.140
Why?
Arachnoid Cysts
1
2017
10
0.140
Why?
Methylenetetrahydrofolate Reductase (NADPH2)
1
2018
64
0.140
Why?
Dura Mater
1
2017
28
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?
Animals
8
2019
34402
0.130
Why?
Hemangioma, Cavernous
1
2017
19
0.130
Why?
Polyglycolic Acid
1
2017
20
0.130
Why?
Trauma Severity Indices
1
2017
87
0.130
Why?
Craniotomy
2
2020
102
0.130
Why?
Ganglia, Spinal
1
2017
64
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?
Locomotion
1
2017
59
0.130
Why?
Hyaluronic Acid
1
2017
108
0.130
Why?
Thymidine Kinase
1
2016
89
0.120
Why?
Ganciclovir
1
2016
102
0.120
Why?
Osteotomy
1
2016
47
0.120
Why?
Neuroimaging
1
2020
404
0.120
Why?
Lactic Acid
1
2017
144
0.120
Why?
Fluorouracil
1
2016
134
0.120
Why?
Scoliosis
1
2017
145
0.120
Why?
Spinal Dysraphism
1
2019
279
0.120
Why?
Reoperation
1
2019
844
0.120
Why?
Genetic Engineering
1
2016
163
0.120
Why?
Reflex
1
2015
36
0.120
Why?
Total Disc Replacement
1
2015
2
0.110
Why?
Cervical Cord
1
2015
9
0.110
Why?
Lipopolysaccharides
1
2017
302
0.110
Why?
Joint Prosthesis
1
2015
17
0.110
Why?
Recovery of Function
1
2017
450
0.110
Why?
Bone Diseases, Metabolic
1
2015
58
0.110
Why?
Myelin Sheath
1
2015
128
0.110
Why?
Random Allocation
1
2015
423
0.110
Why?
Cranial Sutures
1
2014
36
0.110
Why?
Psychomotor Performance
1
2015
178
0.110
Why?
Republic of Korea
4
2016
56
0.100
Why?
Case-Control Studies
6
2018
3451
0.100
Why?
Population
1
2013
22
0.100
Why?
Vitamin K Epoxide Reductases
1
2013
7
0.100
Why?
Bone Marrow Cells
1
2015
244
0.100
Why?
Radiography
2
2015
762
0.100
Why?
Analysis of Variance
1
2015
955
0.100
Why?
Xenograft Model Antitumor Assays
1
2016
999
0.100
Why?
Blood Patch, Epidural
1
2012
5
0.100
Why?
Intracranial Hypotension
1
2012
11
0.100
Why?
Sesquiterpenes
1
2013
27
0.100
Why?
Alkaloids
1
2013
36
0.100
Why?
Skull
1
2014
154
0.100
Why?
Nitric Oxide Synthase Type III
1
2013
187
0.090
Why?
Intracranial Arteriovenous Malformations
1
2012
33
0.090
Why?
Sclerosis
1
2012
30
0.090
Why?
Fecal Incontinence
1
2012
73
0.090
Why?
Endoscopy
1
2014
284
0.090
Why?
Urinary Incontinence
1
2012
73
0.090
Why?
Transforming Growth Factor beta1
1
2013
139
0.090
Why?
Internship and Residency
1
2022
1215
0.090
Why?
Brain Infarction
1
2012
28
0.090
Why?
Treatment Outcome
9
2026
12997
0.090
Why?
Vascular Endothelial Growth Factor Receptor-2
1
2012
66
0.090
Why?
Melanoma
1
2019
921
0.090
Why?
Craniosynostoses
1
2014
156
0.090
Why?
Moyamoya Disease
1
2012
42
0.090
Why?
Cerebrovascular Disorders
1
2012
114
0.090
Why?
Intracranial Aneurysm
1
2012
82
0.090
Why?
Vascular Endothelial Growth Factor A
1
2013
341
0.090
Why?
Radiosurgery
1
2012
135
0.080
Why?
Fluoroscopy
1
2011
100
0.080
Why?
Prognosis
1
2020
4953
0.080
Why?
Pain
1
2013
439
0.080
Why?
Aged, 80 and over
1
2021
6916
0.080
Why?
Genotype
4
2017
2655
0.070
Why?
Back Pain
2
2022
30
0.070
Why?
Time Factors
2
2015
6279
0.070
Why?
Inflammation
1
2015
1493
0.070
Why?
Follow-Up Studies
4
2017
5297
0.060
Why?
Operative Time
1
2026
205
0.060
Why?
Pain Measurement
2
2017
356
0.050
Why?
Haplotypes
2
2016
550
0.050
Why?
Young Adult
5
2017
10102
0.050
Why?
Gene Frequency
2
2016
750
0.050
Why?
Cerebral Angiography
2
2012
106
0.050
Why?
Personnel Staffing and Scheduling
1
2022
84
0.040
Why?
Evidence-Based Medicine
1
2025
645
0.040
Why?
Machine Learning
1
2025
375
0.040
Why?
Workload
1
2022
154
0.040
Why?
Atlanto-Occipital Joint
1
2020
5
0.040
Why?
Societies, Medical
1
2025
796
0.040
Why?
Odontoid Process
1
2020
10
0.040
Why?
Anti-Inflammatory Agents, Non-Steroidal
1
2022
302
0.040
Why?
Length of Stay
1
2026
1400
0.040
Why?
Alleles
2
2016
1711
0.040
Why?
Bone Wires
1
2019
7
0.040
Why?
Hospitals
1
2022
445
0.040
Why?
Bone Screws
1
2019
52
0.040
Why?
Disease Progression
1
2025
2221
0.040
Why?
Cell Differentiation
2
2017
1948
0.040
Why?
Polyesters
1
2018
35
0.040
Why?
Polyradiculopathy
1
2017
2
0.030
Why?
Lysine
1
2018
175
0.030
Why?
Injections, Intralesional
1
2017
45
0.030
Why?
Intervertebral Disc
1
2017
13
0.030
Why?
Education, Medical, Graduate
1
2022
547
0.030
Why?
3' Untranslated Regions
1
2018
164
0.030
Why?
Neoplasms, Second Primary
1
2019
143
0.030
Why?
Postmenopause
1
2017
149
0.030
Why?
Water
1
2017
190
0.030
Why?
Headache
1
2017
110
0.030
Why?
Neurologic Examination
1
2016
197
0.030
Why?
Polymers
1
2016
112
0.030
Why?
Cell Engineering
1
2015
21
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
31
0.030
Why?
Dipeptides
1
2015
64
0.030
Why?
Receptor, Notch1
1
2015
75
0.030
Why?
Adipose Tissue
1
2017
495
0.030
Why?
Disability Evaluation
1
2015
197
0.030
Why?
Adolescent
4
2013
20994
0.030
Why?
Microscopy, Confocal
1
2015
363
0.030
Why?
Polymorphism, Restriction Fragment Length
1
2013
138
0.020
Why?
Orthopedic Procedures
1
2014
76
0.020
Why?
Feasibility Studies
1
2016
838
0.020
Why?
Chronic Disease
1
2017
1235
0.020
Why?
Patient Safety
1
2017
444
0.020
Why?
Urinary Bladder Diseases
1
2012
34
0.020
Why?
Survival
1
2012
15
0.020
Why?
Angiography, Digital Subtraction
1
2012
45
0.020
Why?
Intracranial Hemorrhages
1
2012
79
0.020
Why?
Pilot Projects
1
2016
1457
0.020
Why?
Subarachnoid Hemorrhage
1
2012
64
0.020
Why?
Glasgow Coma Scale
1
2012
203
0.020
Why?
Accidents, Traffic
1
2012
105
0.020
Why?
Homeodomain Proteins
1
2015
568
0.020
Why?
Skin Neoplasms
1
2019
904
0.020
Why?
Temporal Lobe
1
2012
116
0.020
Why?
Models, Biological
1
2016
1395
0.020
Why?
Proteins
1
2016
1027
0.020
Why?
Behavior, Animal
1
2013
510
0.020
Why?
Genetic Association Studies
1
2013
838
0.020
Why?
United States
1
2025
11815
0.020
Why?
Sex Factors
1
2013
1347
0.020
Why?
Cells, Cultured
1
2015
2968
0.020
Why?
Brain Injuries
1
2012
712
0.020
Why?
Seizures
1
2012
890
0.020
Why?
Brain Neoplasms
1
2012
1297
0.010
Why?
Cohort Studies
1
2012
5122
0.010
Why?
Signal Transduction
1
2015
4682
0.010
Why?
Infant
1
2014
13324
0.010
Why?
Child
1
2012
26316
0.010
Why?
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Concepts (260)
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