1996a-805 2005n-989 2007i-233 2013b-189 administration adverseeffects analgesia analgesics anatomy anesthesia anesthesiology anesthetics atlases complications conduction control decisionmaking dosage drugtherapy generalanesthesia imaging injections intraoperativecomplications local localanesthesia localanesthetics medical medicalradiography methods needsassessment nursing orthopedicprocedures orthopedicsurgery pain painmedicine prevention radiography rd regional sideeffects surgery treatment treatmentoutcome wl17r234a2006 wl704 wo300 wo300c7371999 wo300c7372007 wo300p957 wo300r234r2004 wo517r3361996