#1	MeSH descriptor: [Hip Fractures] explode all trees
#2	MeSH descriptor: [Arthroplasty, Replacement, Hip] explode all trees
#3	intra-articular fracture* or periprosthtic fracture* or hip* or femoral neck fractures or subtrochanteric fracture* or trochanteric fracture* or intertrochanteric fracture* or femur neck fracture*:ti,ab,kw
#4	#1 or #2 or #3
#5	MeSH descriptor: [Delirium] explode all trees
#6	MeSH descriptor: [Delirium, Dementia, Amnestic, Cognitive Disorders] explode all trees
#7	MeSH descriptor: [Confusion] explode all trees
#8	organic mental disorder* or confus* or disorientation or “organic brain disorder” or “organic brain disorders” or delir* or “psychosis” or “intraoperative complications” or “intraoperative complication” or “intra-operative complication” or “intra-operative complications” or “perioperative complication” or “perioperative complication” or “peri-operative complications” or “peri-operative complications”:ti,ab,kw
#9	MeSH descriptor: [Intraoperative Complications] explode all trees
#10	#5 or #6 or #7 or #8 or #9
#11	MeSH descriptor: [Orthopedics] explode all trees
#12	MeSH descriptor: [Surgical Procedures, Operative] explode all trees
#13	MeSH descriptor: [Intraoperative Period] explode all trees
#14	MeSH descriptor: [Intraoperative Care] explode all trees
#15	MeSH descriptor: [Perioperative Period] explode all trees
#16	MeSH descriptor: [Perioperative Care] explode all trees
#17	MeSH descriptor: [Monitoring, Intraoperative] explode all trees
#18	Orthopedic* or orthopaedic* or “operative procedure” or “operative procedures” or surgery or surgeries or surgi* or “intraoperative monitoring” or “intra-operative monitoring” or “intraoperative period” or “intra-operative period” or “intraoperative care” or “intra-operative care” or “intraoperative period” or “intra-operative period” or “perioperative period” or “peri-operative period” or “perioperative care” or “peri-operative care”:ti,ab,kw
#19	#11 or #12 or #13 or #14 or #15 or #16 or #17 or #18
#20	#4 and #10 and #19