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Open-Access Journal
Editorial
Regulation of bone destruction in rheumatoid arthritis through RANKL-RANK pathways 
Sakae Tanaka 
World J Orthop 4(1):1-6. Published online Jan 18, 2013. doi: 10.5312/wjo.v4.i1.1
Topic Highlight
Femoral impaction grafting 
John A Scanelli, Thomas E Brown 
World J Orthop 4(1):7-11. Published online Jan 18, 2013. doi: 10.5312/wjo.v4.i1.7
Anterior muscle sparing approach for total hip arthroplasty 
Joseph T Moskal, Susan G Capps, John A Scanelli 
World J Orthop 4(1):12-18. Published online Jan 18, 2013. doi: 10.5312/wjo.v4.i1.12
Access related complications during anterior exposure of the lumbar spine 
Gary A Fantini, Abhijit Y Pawar 
World J Orthop 4(1):19-23. Published online Jan 18, 2013. doi: 10.5312/wjo.v4.i1.19
Brief Article
Finger movement at birth in brachial plexus birth palsy 
Rahul K Nath, Mohamed Benyahia, Chandra Somasundaram 
World J Orthop 4(1):24-28. Published online Jan 18, 2013. doi: 10.5312/wjo.v4.i1.24