Social media and anaesthesia journals.

at the popliteal fossa. Reg Anesth Pain Med 2013; 38: 447–51 6. Bruhn J, Van Geffen GJ, GielenMJ, Scheffer GJ. Visualization of the course of the sciatic nerve in adult volunteers by ultrasonography. Acta Anaesthesiol Scand 2008; 52: 1298–302 7. Tsui BC, Finucane BT. The importance of ultrasound landmarks: a ‘traceback’ approach using the popliteal blood vessels for identification of the sciatic nerve. Reg Anesth Pain Med 2006; 31: 481–2 8. Auyong DB, Benonis JG, Gonzales J. Distal squeeze technique increases venous bloodflowand allows for easy identification of veins with ultrasound. Reg Anesth Pain Med 2010; 35: 314 9. Schafhalter-Zoppoth I, Younger SJ, Collins AB, Gray AT. The ‘seesaw’ sign: improved sonographic identification of the sciatic nerve. Anesthesiology 2004; 101: 808–9 10. Sala-Blanch X, de Riva N, Carrera A, Lopez AM, Prats A, Hadzic A. Ultrasound-guided popliteal sciatic block with a single injection at the sciatic division results in faster block onset than the classical nerve stimulator technique. Anesth Analg 2012; 114: 1121–7 11. Abdallah FW, Chan VW. The paraneural compartment: a new destination? Reg Anesth Pain Med 2013; 38: 375–7 12. Wolf FA, Gray AT. Sonography of the paraneural sheath of the sciatic nerve in the popliteal fossa: more than a bifurcation. Reg Anesth Pain Med 2014; 39: 260–2 13. Spinner RJ, Wang H, Carmichael SW, Amrami KK, Scheithauer BW. Epineurial compartments and their role in intraneural ganglion cyst propagation: an experimental study. Clin Anat 2007; 20: 826–33 14. Choquet O, Noble GB, Abbal B, Morau D, Bringuier S, Capdevila X. Subparaneural versus circumferential extraneural injection at the bifurcation level in ultrasoundguided popliteal sciatic nerve blocks: a prospective, randomized, double-blind study. Reg Anesth Pain Med 2014; 39: 306–11