1. Psoas compartment block for lower extremity surgery: a meta-analysis
S.T. Touray, M.A. de Leeuw, W.W.A. Zuurmond, R.S.G. M. Perez 
British Journal of Anaesthesia 
Volume 101, Issue 6, Pages (December 2008)
DOI: /bja/aen298
Copyright © 2008 British Journal of Anaesthesia Terms and Conditions

2. Fig 1
WMD between single-injection PCB and opiates for VAS pain scores measured at four time periods after surgery (0–4, 4–8, 8–12, and 20–24 h).
British Journal of Anaesthesia  , DOI: ( /bja/aen298)
Copyright © 2008 British Journal of Anaesthesia Terms and Conditions

3. Fig 2
WMD between PCB and opiates for postoperative opiate consumption measured at five time periods after surgery (0–4, 4–8, 8–12, 20–24, and 44–48 h).
British Journal of Anaesthesia  , DOI: ( /bja/aen298)
Copyright © 2008 British Journal of Anaesthesia Terms and Conditions

4. Fig 3
WMD between continuous PCB and opiates for VAS pain scores measured at four time periods after surgery (0–4, 4–8, 8–12, and 20–24 h).
British Journal of Anaesthesia  , DOI: ( /bja/aen298)
Copyright © 2008 British Journal of Anaesthesia Terms and Conditions

5. Fig 4
Rates of successful block of the three branches of the lumbar plexus by PCB vs the 3-in-1 block expressed as RR ratios.
British Journal of Anaesthesia  , DOI: ( /bja/aen298)
Copyright © 2008 British Journal of Anaesthesia Terms and Conditions