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Scaphoid Fractures

Scaphoid Fractures

Geert Buijze | Jesse B. Jupiter

(2017)

Additional Information

Book Details

Abstract

Get a quick, expert overview of current diagnosis and management of scaphoid fractures with this concise, practical resource by Drs. Geert Buijze and Jesse B. Jupiter. This easy-to-read reference presents a summary of today’s best evidence-based approaches to diagnosis and management in this critical area.

  • Provides must-know information on scaphoid fractures, including how to apply evidence-based management, anatomy, diagnosis, acute fracture management, malunion treatment, and nonunion management.
  • Presents case scenarios followed by discussions of the importance of the problem, current opinion, evidence, and key recommendations.
  • Consolidates today’s evidence-based information on scaphoid fractures into one convenient resource.

Table of Contents

Section Title Page Action Price
Front Cover Cover
Scaphoid Fractures: Evidence-Based Management i
Scaphoid Fractures: Evidence-Based Management iii
Copyright iv
Dedication v
List of Contributors vii
Foreword xiii
Preface xv
Contents xix
I - INTRODUCTION 1
1 - Using Evidence to Manage Scaphoid Fractures 1
INTRODUCTION 1
DIAGNOSIS OF TRUE FRACTURES AMONG SUSPECTED FRACTURES 1
DIAGNOSIS OF DISPLACEMENT AND FRACTURE INSTABILITY 3
CLASSIFICATION 3
TREATMENT 4
DIAGNOSIS OF UNION 4
DIAGNOSIS OF VASCULARITY AND TREATMENT OF NONUNION 4
NATURAL HISTORY AND SALVAGE PROCEDURES 4
CONCLUSION 5
REFERENCES 5
2 - Principles of Evidence-Based Management of Scaphoid Fractures 7
THE ERA OF EVIDENCE-BASED MEDICINE 7
Principles of Evidence-Based Management 9
HIERARCHY OF EVIDENCE AND QUALITY 10
PRESENTATION OF RESEARCH FINDINGS 12
MAKING RECOMMENDATIONS 15
CONCLUSION 17
REFERENCES 19
II - ANATOMY 21
3 - Anatomy of the Scaphoid Bone and Ligaments 21
IMPORTANCE OF THE PROBLEM 21
MAIN QUESTION 21
Current Opinion 21
Finding the Evidence 21
Quality of the Evidence 22
FINDINGS 22
Osseous Anatomy 22
Proximal pole and articulations 23
Distal pole and articulations 23
Scaphoid tubercle 24
Scaphoid waist 24
Vascular Anatomy 24
Ligament Anatomy 25
Volar ligaments 25
Radioscaphocapitate ligament. The radioscaph 25
Long radiolunate ligament. According to general consensus, the long radiolunate (LRL) originates ulnar to the RSC ligament on th... 25
Volar scaphotriquetral ligament. The existence of the volar scaphotriquetral ligament (vScTq) remains controversial. Its presenc... 25
Radioscapholunate ligament. The radioscapholunate (RSL) ligament originates on the volar rim of the distal radius and inserts on... 26
Scaphocapitate ligament. The scaphocapitate (ScC) is a large capsular ligament originating from the distal pole of the scaphoid.... 26
The scapho-trapezio-trapezoid ligament. The STT ligament comprises two or more bundles originating on the ulnar, volar, and radi... 29
Transverse carpal ligament. The transverse carpal ligament (TCL) is an extracapsular structure originating ulnarly on the hamate... 31
Radial collateral ligament. The radial collateral ligament (RCL) is a controversial structure. Some studies report it as a separ... 31
Dorsal ligaments 31
Dorsal intercarpal ligament. The dorsal intercarpal (DIC) ligament originates from the dorsoradial part of the triquetrum.1–3,48... 31
Dorsal radiocarpal ligament. The DRC ligament is most commonly described to originate from the distal radius and to insert onto ... 32
Scapholunate interosseous ligaments 32
Scapholunate interosseous ligament. The SLIO ligament is a C-shaped ligament spanning the perimeter of the scapholunate joint1 (... 32
RECOMMENDATIONS 32
CONCLUSION 32
REFERENCES 32
4 - Vascular Supply to the Scaphoid 35
IMPORTANCE OF THE PROBLEM 35
MAIN QUESTION 35
Current Opinion 35
Finding the Evidence 35
Quality of the Evidence 35
FINDINGS 36
External Vascularity 36
Internal Vascularity 38
Clinical Correlations 38
RECOMMENDATIONS 39
CONCLUSIONS 39
REFERENCES 39
5 - Dynamic Imaging and Kinematics of the Scaphoid 41
IMPORTANCE OF THE PROBLEM 41
MAIN QUESTION 41
Current Opinion 42
Finding the Evidence 42
Literature Search, Study Selection, and Data Extraction 42
Quality of the Evidence 42
FINDINGS 43
What Imaging Technique Is Used? 43
Is a Guided Motion Pattern Used to Replicate a Specific Motion? 43
What Is the Definition of the Neutral Position of the Wrist? 43
How Is Global Wrist Motion Defined? 44
Are the Positions of the Wrist in Which the Data Are Acquired Described? 44
Are the Measurements Performed on the 2D or 3D Images of the Carpal Bones? 44
What Coordinate System Is Used to Express Motion of the Carpals? 44
How Is the Fracture Location Determined? 44
Are the Kinematics of the Scaphoid Fragments Analyzed Separately? 44
Is the Analysis Technique Validated? 45
RECOMMENDATIONS 45
CONCLUSION 46
REFERENCES 47
III - DIAGNOSIS 49
6 - Predictors of Scaphoid Fractures 49
IMPORTANCE OF THE PROBLEM 49
MAIN QUESTION 52
Current Opinion 52
Finding the Evidence 52
Quality of the Evidence 52
FINDINGS 52
Considerations for Future Research 54
RECOMMENDATIONS 54
CONCLUSION 54
REFERENCES 58
7 - Diagnostic Work-up for Suspected Scaphoid Fractures 61
IMPORTANCE OF THE PROBLEM 61
Cost-effectiveness 61
MAIN QUESTIONS 62
Current Opinion 62
Finding the Evidence 62
Quality of Evidence 62
Diagnostic accuracy studies 62
Economic and decision analysis 62
Quality of evidence for diagnostic accuracy studies 62
Quality of evidence for cost-effectiveness studies 62
FINDINGS 63
Diagnostic Accuracy 63
Cost-effectiveness 63
RECOMMENDATIONS 64
CONCLUSIONS 64
REFERENCES 65
8 - Classification Systems of Scaphoid Fractures 67
IMPORTANCE OF PROBLEM 67
MAIN QUESTION 68
Current Opinion 68
Finding Evidence 68
Quality of the Evidence 69
FINDINGS 69
Classifications Based on Fracture Location (Table 8.1) 69
Classifications Based on Fracture Plane Orientation (Table 8.2) 69
Classifications Based on Displacement and/or Instability (Table 8.3) 69
RECOMMENDATION 72
CONCLUSION 72
REFERENCES 73
9 - Three-Dimensional Imaging of Scaphoid Fractures 75
IMPORTANCE OF THE PROBLEM 75
MAIN QUESTIONS 75
Current Opinion 77
Finding the Evidence 77
Quality of the evidence 77
FINDINGS 77
RECOMMENDATIONS 78
CONCLUSION 79
REFERENCES 81
10 - Diagnosis of Displaced Scaphoid Fractures 83
IMPORTANCE OF THE PROBLEM 83
What Is the Definition of Displacement? 83
MAIN QUESTION 84
Current Opinion 84
Finding the Evidence 84
Quality of Evidence 85
FINDINGS 85
Evidence From Level III Studies 85
Evidence From Level IV Studies 86
Recommended Sequences for Radiography, CT, and MRI 87
RECOMMENDATION 87
CONCLUSIONS 89
REFERENCES 89
11 - Scaphoid Fracture Instability 91
IMPORTANCE OF THE PROBLEM 91
MAIN QUESTION 91
Current Opinion 91
Finding the Evidence 91
Quality of the Evidence 92
FINDINGS 92
Recommendation 95
CONCLUSION 95
REFERENCES 98
IV - ACUTE FRACTURE MANAGEMENT 99
12 - Surgical Versus Conservative Treatment for Nondisplaced Scaphoid Waist Fractures 99
IMPORTANCE OF THE PROBLEM 99
MAIN QUESTION 99
Current Opinion 99
Finding the Evidence 100
Quality of the Evidence 101
FINDINGS 101
Outcome Description 101
Results on Functional Outcome 101
Secondary Outcomes 101
In Favor of Conservative Treatment 103
In Favor of Surgical Treatment 103
Equivalence Between Surgical and Conservative Treatment 103
RECOMMENDATION 104
CONCLUSION 104
REFERENCES 105
13 - Conservative Treatment of Nondisplaced and Minimally Displaced Scaphoid Waist Fractures 107
IMPORTANCE OF THE PROBLEM 107
MAIN QUESTION 108
Current Opinion 108
Finding of Evidence 108
Quality of Evidence 109
Below-elbow versus above-elbow cast 109
Thumb or no-thumb cast 109
Position of the wrist in the cast 109
Removable cast 109
Immobilization time 109
Pulsed electromagnetic field and pulsed low-intensity ultrasound therapy 109
FINDINGS 109
Below-Versus Above-Elbow Cast 109
Thumb or No-Thumb Immobilization 109
Position in the Cast 110
Removable Cast 110
Immobilization Time 110
Pulsed Electromagnetic Field and Pulsed Low-Intensity Ultrasound Therapy 110
RECOMMENDATIONS 111
CONCLUSION 111
REFERENCES 112
14 - Acute Management of Proximal Pole Scaphoid Fractures 115
IMPORTANCE OF THE PROBLEM 115
MAIN QUESTION 115
Current Opinion 116
Finding the Evidence 116
Quality of the Evidence 117
FINDINGS 117
AUTHORS’ METAANALYSIS 117
RECOMMENDATION 118
CONCLUSION 119
15 - Distal Scaphoid Fractures 123
IMPORTANCE OF THE PROBLEM AND CURRENT OPINION 123
MAIN QUESTION 123
Finding the Evidence 123
Quality of Evidence 123
ANATOMY 123
EPIDEMIOLOGY 124
FRACTURE BIOMECHANICS 124
CLASSIFICATION 124
IMAGING 125
TREATMENT 126
Nonunion 126
Posttraumatic Arthritis 126
OUTCOME 126
RECOMMENDATION 126
CONCLUSION 126
REFERENCES 127
16 - Percutaneous Scaphoid Fixation: Volar and Dorsal Techniques 129
IMPORTANCE OF THE PROBLEM 129
MAIN QUESTION 129
Current Opinion 129
Finding the Evidence 129
Quality of the Evidence 130
FINDINGS 130
Historical Perspective 130
Indications 130
RECOMMENDATION 139
CONCLUSION 139
REFERENCES 140
FURTHER READING 140
17 - Optimal Screw Placement 143
IMPORTANCE OF THE PROBLEM 143
MAIN QUESTION 144
Current Opinion 144
Finding the Evidence 144
Quality of the Evidence 144
Screw position 144
Approach 145
FINDINGS 145
Screw Position 145
Approach 146
RECOMMENDATION 146
CONCLUSION 147
REFERENCES 149
18 - Arthroscopy-Assisted Screw Fixation 151
IMPORTANCE OF THE PROBLEM 152
MAIN QUESTIONS 153
Current Opinion 153
Finding the Evidence 154
Quality of the Evidence 154
FINDINGS 154
ANSWER TO THE MAIN QUESTIONS 154
RECOMMENDATION 155
CONCLUSION 156
REFERENCES 162
19 - Displaced Scaphoid Fracture Treatment 165
IMPORTANCE OF THE PROBLEM 165
QUESTION 1 166
Current Opinion 166
Search Strategy 166
Embase 166
Medline 166
Quality of the Evidence 167
Findings 167
QUESTION 2 168
V - MALUNION TREATMENT 215
24 - Diagnosing the Malunited Scaphoid 215
IMPORTANCE OF THE PROBLEM 215
MAIN QUESTION 216
Current Opinion 216
Finding the Evidence 217
Quality of the Evidence 217
FINDINGS 217
Choice of Imaging Modality 217
Measurable Parameters 217
Lateral Intrascaphoid Angle 217
Anteroposterior Intrascaphoid Angle 218
Height to Length Ratio 218
Dorsal Cortical Angle 219
Carpal Alignment 219
RECOMMENDATIONS 219
CONCLUSION 220
REFERENCES 220
25 - Three-Dimensional Planning of Scaphoid Malunion and Nonunion Correction 221
IMPORTANCE OF THE PROBLEM 221
MAIN QUESTION 223
Current Opinion 223
Finding the Evidence 223
Quality of the Evidence 224
FINDINGS 224
RECOMMENDATION 225
CONCLUSION 225
REFERENCES 228
26 - Corrective Osteotomy for Scaphoid Malunion 229
IMPORTANCE OF THE PROBLEM 229
MAIN QUESTION 231
Current Opinion 231
Finding the Evidence 231
Quality of the Evidence 231
FINDINGS 231
RECOMMENDATION 232
CONCLUSION 234
REFERENCES 234
VI - NONUNION MANAGEMENT 237
27 - Diagnosing Vascularity Issues of the Scaphoid 237
IMPORTANCE OF THE PROBLEM 237
MAIN QUESTION 237
Current Opinion 237
Finding the Evidence 237
Quality of the Evidence 238
FINDINGS 238
Assessment of Scaphoid Vascularity and Viability 238
Preiser Disease 241
RECOMMENDATION 242
CONCLUSION 242
REFERENCES 242
28 - Three-Dimensional Analysis of Nonunion Patterns 245
IMPORTANCE OF THE PROBLEM 245
MAIN QUESTION 248
Current Opinion 248
Finding the Evidence 248
Quality of the Evidence 248
FINDINGS 248
RECOMMENDATION 248
CONCLUSIONS 248
REFERENCES 251
29 - Surgical Treatment for Fibrous-Delayed Scaphoid Nonunions 253
IMPORTANCE OF THE PROBLEM 253
MAIN QUESTION 253
Current Opinion 253
Finding the Evidence 254
Quality of the Evidence 254
FINDINGS 254
Conservative Treatment 254
Scaphoid Unions Without Substantial Bone Loss 254
Dorsal Percutaneous Approach 255
Mini-open Technique 257
Volar Percutaneous Approach 257
Postoperative Care 265
Scaphoid Nonunions 265
RECOMMENDATION 267
CONCLUSION 267
REFERENCES 267
30 - Scaphoid Plating 269
IMPORTANCE OF THE PROBLEM 269
Overview 269
Plating Rationale 269
MAIN QUESTION 270
Current Opinion 270
Finding the Evidence 270
Quality of the Evidence 271
FINDINGS 271
Biomechanics 271
Indications 272
Contraindications 272
Clinical Data 272
RECOMMENDATIONS 272
CONCLUSION 273
REFERENCES 274
31 - Vascularized Versus Nonvascularized Bone Grafts 277
IMPORTANCE OF THE PROBLEM 277
MAIN QUESTION 277
Current Opinion 278
Finding the Evidence 279
Quality of the Evidence 279
FINDINGS 281
RECOMMENDATION 285
CONCLUSION 289
REFERENCES 289
32 - Vascularized Bone Grafts 291
IMPORTANCE OF THE PROBLEM 291
MAIN QUESTION 293
Current Opinion 293
Finding the Evidence 293
Quality of the Evidence 293
FINDINGS 293
Part 1: The Variety of Techniques 293
Part 2: Author’s Preferred Technique and Findings 295
RECOMMENDATION 295
CONCLUSION 295
REFERENCES 301
33 - Nonvascularized Bone Grafts 303
IMPORTANCE OF THE PROBLEM 303
MAIN QUESTION 303
Current Opinion 303
Finding the Evidence 304
Quality of the Evidence 304
FINDINGS 305
Nonstructured Grafts 305
Structured Grafts 305
Three-Dimensional Reconstruction 305
Multiplanar Deformity 306
Patient-Specific Developments 308
Preferred Techniques 308
Long-Term Results 308
RECOMMENDATION 308
CONCLUSION 308
REFERENCES 318
34 - Bone Morphogenetic Proteins for Scaphoid Nonunion 321
IMPORTANCE OF THE PROBLEM 321
MAIN QUESTION 321
Current Opinion 321
Finding the Evidence 322
Quality of the Evidence 323
FINDINGS 323
RECOMMENDATION 324
CONCLUSION 324
REFERENCES 325
35 - Arthroscopic Bone Grafting for Scaphoid Nonunion 327
IMPORTANCE OF THE PROBLEM 327
Conventional Bone Grafting 327
Arthroscopic Bone Graft—A Novel Concept and Technique 329
MAIN QUESTION 329
Current Opinion 329
Finding the Evidence 330
Quality of the Evidence 330
FINDINGS 330
Authors’ Case Series 330
Surgical Technique 332
Arthroscopic Surveillance 332
Takedown of Nonunion 332
Correction of Humpback Deformity 335
Bone Grafting at Midcarpal Joint 338
Percutaneous Screw Fixation 341
Percutaneous Multiple K-Wire Fixation 343
Early Scaphoid Nonunion Advanced Collapse Wrist 343
Postoperative Care 347
Results 348
Discussion 350
RECOMMENDATION 353
CONCLUSION 353
REFERENCES 353
36 - Salvage Procedures for SNAC Wrist 355
IMPORTANCE OF THE PROBLEM 355
THE QUESTION 357
Current Opinion 357
Finding the Evidence 358
Quality of the Evidence 358
FINDINGS 358
RECOMMENDATION 364
CONCLUSION 364
REFERENCES 365
Index 367
A 367
B 367
C 368
D 368
E 369
F 369
G 369
H 369
I 370
K 370
L 370
M 370
N 370
O 371
P 371
Q 372
R 372
S 373
T 374
U 374
V 375
W 375
X 375