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Open-Access Journal
Systematic Review
Investigational growth factors utilized in animal models of spinal fusion: Systematic review 
Ethan Cottrill, A Karim Ahmed, Noah Lessing, Zachary Pennington, Wataru Ishida, Alexander Perdomo-Pantoja, Sheng-fu Lo, Elizabeth Howell, Christina Holmes, C Rory Goodwin, Nicholas Theodore, Daniel M Sciubba, Timothy F Witham 
World J Orthop 10(4):176-191. Published online Apr 18, 2019. doi: 10.5312/wjo.v10.i4.176
Growing pains: What do we know about etiology? A systematic review 
Vito Pavone, Andrea Vescio, Fabiana Valenti, Marco Sapienza, Giuseppe Sessa, Gianluca Testa 
World J Orthop 10(4):192-205. Published online Apr 18, 2019. doi: 10.5312/wjo.v10.i4.192
Case Report
Fracture of allograft interbody spacer resulting in post-operative radiculopathy: A case report 
Andrews Kyle, Andrea Rowland, Jacob Stirton, Hossein Elgafy 
World J Orthop 10(4):206-211. Published online Apr 18, 2019. doi: 10.5312/wjo.v10.i4.206
Recalcitrant distal humeral non-union following previous Leiomyosarcoma excision treated with retainment of a radiated non-angiogenic segment augmented with 20 cm free fibula composite graft: A case report 
Martin Gathen, Grayson Norris, Simon Kay, Peter V Giannoudis 
World J Orthop 10(4):212-218. Published online Apr 18, 2019. doi: 10.5312/wjo.v10.i4.212