Supplementary Table-I.

Details of the search queries.

Query	Search Details
(quadratus lumborum block) AND (hip arthroplasty)	"quadratus"[All Fields] AND "lumborum"[All Fields] AND ("block"[All Fields] OR "blocked"[All Fields] OR "blocking"[All Fields] OR "blockings"[All Fields] OR "blocks"[All Fields]) AND (("hip"[MeSH Terms] OR "hip"[All Fields]) AND ("arthroplasty"[MeSH Terms] OR "arthroplasty"[All Fields] OR "arthroplasties"[All Fields]))
(quadratus lumborum block) AND (hip surgery)	"quadratus"[All Fields] AND "lumborum"[All Fields] AND ("block"[All Fields] OR "blocked"[All Fields] OR "blocking"[All Fields] OR "blockings"[All Fields] OR "blocks"[All Fields]) AND (("hip"[MeSH Terms] OR "hip"[All Fields]) AND ("surgery"[MeSH Subheading] OR "surgery"[All Fields] OR "surgical procedures, operative"[MeSH Terms] OR ("surgical"[All Fields] AND "procedures"[All Fields] AND "operative"[All Fields]) OR "operative surgical procedures"[All Fields] OR "general surgery"[MeSH Terms] OR ("general"[All Fields] AND "surgery"[All Fields]) OR "general surgery"[All Fields] OR "surgery s"[All Fields] OR "surgerys"[All Fields] OR "surgeries"[All Fields]))
(((Femoral nerve block) OR (fascia iliaca block)) AND (quadratus lumborum block)) AND (femoral neck)	((("femoral nerve"[MeSH Terms] OR ("femoral"[All Fields] AND "nerve"[All Fields]) OR "femoral nerve"[All Fields]) AND ("block"[All Fields] OR "blocked"[All Fields] OR "blocking"[All Fields] OR "blockings"[All Fields] OR "blocks"[All Fields])) OR (("fascia"[MeSH Terms] OR "fascia"[All Fields] OR "fasciae"[All Fields] OR "fascias"[All Fields]) AND "iliaca"[All Fields] AND ("block"[All Fields] OR "blocked"[All Fields] OR "blocking"[All Fields] OR "blockings"[All Fields] OR "blocks"[All Fields]))) AND ("quadratus"[All Fields] AND "lumborum"[All Fields] AND ("block"[All Fields] OR "blocked"[All Fields] OR "blocking"[All Fields] OR "blockings"[All Fields] OR "blocks"[All Fields])) AND ("femur neck"[MeSH Terms] OR ("femur"[All Fields] AND "neck"[All Fields]) OR "femur neck"[All Fields] OR ("femoral"[All Fields] AND "neck"[All Fields]) OR "femoral neck"[All Fields])
(((Femoral nerve block) OR (fascia iliaca block)) AND (quadratus lumborum block)) AND (hip surgery)	((("femoral nerve"[MeSH Terms] OR ("femoral"[All Fields] AND "nerve"[All Fields]) OR "femoral nerve"[All Fields]) AND ("block"[All Fields] OR "blocked"[All Fields] OR "blocking"[All Fields] OR "blockings"[All Fields] OR "blocks"[All Fields])) OR (("fascia"[MeSH Terms] OR "fascia"[All Fields] OR "fasciae"[All Fields] OR "fascias"[All Fields]) AND "iliaca"[All Fields] AND ("block"[All Fields] OR "blocked"[All Fields] OR "blocking"[All Fields] OR "blockings"[All Fields] OR "blocks"[All Fields]))) AND ("quadratus"[All Fields] AND "lumborum"[All Fields] AND ("block"[All Fields] OR "blocked"[All Fields] OR "blocking"[All Fields] OR "blockings"[All Fields] OR "blocks"[All Fields])) AND (("hip"[MeSH Terms] OR "hip"[All Fields]) AND ("surgery"[MeSH Subheading] OR "surgery"[All Fields] OR "surgical procedures, operative"[MeSH Terms] OR ("surgical"[All Fields] AND "procedures"[All Fields] AND "operative"[All Fields]) OR "operative surgical procedures"[All Fields] OR "general surgery"[MeSH Terms] OR ("general"[All Fields] AND "surgery"[All Fields]) OR "general surgery"[All Fields] OR "surgery s"[All Fields] OR "surgerys"[All Fields] OR "surgeries"[All Fields]))