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Open-Access Journal
Editorial
Isha A ten Have, Michel PJ van den Bekerom, Derek FP van Deurzen, Michel GJS Hageman 
World J Orthop 6(11):864-866. Published online Dec 18, 2015. doi: 10.5312/wjo.v6.i11.864
Review
Pedro Hinarejos, Pau Guirro, Lluis Puig-Verdie, Raul Torres-Claramunt, Joan Leal-Blanquet, Juan Sanchez-Soler, Joan Carles Monllau 
World J Orthop 6(11):877-885. Published online Dec 18, 2015. doi: 10.5312/wjo.v6.i11.877
Minireviews
Deepak Ramanathan, Marcelo BP Siqueira, Alison K Klika, Carlos A Higuera, Wael K Barsoum, Michael J Joyce 
World J Orthop 6(11):919-926. Published online Dec 18, 2015. doi: 10.5312/wjo.v6.i11.919
Federico Canavese, Antoine Samba, Alain Dimeglio, Mounira Mansour, Marie Rousset 
World J Orthop 6(11):935-943. Published online Dec 18, 2015. doi: 10.5312/wjo.v6.i11.935
Basic Study
Case Control Study
Paphon Sa-ngasoongsong, Noratep Kulachote, Norachart Sirisreetreerux, Pongsthorn Chanplakorn, Sukij Laohajaroensombat, Nithiwut Pinsiranon, Patarawan Woratanarat, Viroj Kawinwonggowit, Chanyut Suphachatwong, Wiwat Wajanavisit 
World J Orthop 6(11):970-976. Published online Dec 18, 2015. doi: 10.5312/wjo.v6.i11.970
Retrospective Cohort Study
Observational Study
Benjamin Blondel, Elke Viehweger, Bertrand Moal, Patrick Tropiano, Jean-Luc Jouve, Virginie Lafage, Raphael Dumas, Stéphane Fuentes, Gérard Bollini, Vincent Pomero 
World J Orthop 6(11):983-990. Published online Dec 18, 2015. doi: 10.5312/wjo.v6.i11.983
Prospective Study
Gokhan Polat, Hasan Huseyin Ceylan, Safak Sayar, Fatih Kucukdurmaz, Mehmet Erdil, Ibrahim Tuncay 
World J Orthop 6(11):991-995. Published online Dec 18, 2015. doi: 10.5312/wjo.v6.i11.991
Systematic Reviews
Davide Edoardo Bonasia, Antongiulio Marmotti, Federica Rosso, Gianluca Collo, Roberto Rossi 
World J Orthop 6(11):1006-1011. Published online Dec 18, 2015. doi: 10.5312/wjo.v6.i11.1006