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Open-Access Journal
Basic Study
Sacroiliac joint stability: Finite element analysis of implant number, orientation, and superior implant length 
Derek P Lindsey, Ali Kiapour, Scott A Yerby, Vijay K Goel 
World J Orthop 9(3):14-23. Published online Mar 18, 2018. doi: 10.5312/wjo.v9.i3.14
Retrospective Study
Complex knee injuries treated in acute phase: Long-term results using Ligament Augmentation and Reconstruction System artificial ligament 
John Gliatis, Konstantinos Anagnostou, Pantelis Tsoumpos, Evdokia Billis, Maria Papandreou, Spyridon Plessas 
World J Orthop 9(3):24-34. Published online Mar 18, 2018. doi: 10.5312/wjo.v9.i3.24
Neglected traumatic hip dislocation: Influence of the increased intracapsular pressure 
Elsayed Ibraheem Elsayed Massoud 
World J Orthop 9(3):35-40. Published online Mar 18, 2018. doi: 10.5312/wjo.v9.i3.35
Clinical Practice Study
Establishing minimum clinically important difference values for the Patient-Reported Outcomes Measurement Information System Physical Function, hip disability and osteoarthritis outcome score for joint reconstruction, and knee injury and osteoarthritis outcome score for joint reconstruction in orthopaedics 
Man Hung, Jerry Bounsanga, Maren W Voss, Charles L Saltzman 
World J Orthop 9(3):41-49. Published online Mar 18, 2018. doi: 10.5312/wjo.v9.i3.41
Use of ketamine sedation for the management of displaced paediatric forearm fractures 
Anatole Vilhelm Wiik, Poonam Patel, Joanna Bovis, Adele Cowper, Philip Socrates Pastides, Alison Hulme, Stuart Evans, Charles Stewart 
World J Orthop 9(3):50-57. Published online Mar 18, 2018. doi: 10.5312/wjo.v9.i3.50
Retraction Note
Retraction note to four articles published in World Journal of Orthopaedics 
Quanjun Cui 
World J Orthop 9(3):58-59. Published online Mar 18, 2018. doi: 10.5312/wjo.v9.i3.58