A search of Joanna Briggs Institute and PubMed identified the following references.
The PubMed search included terms for these concepts: preoperative period, pain, psychology, adults, patient education.

From Joanna Briggs:

Cabilan C, et al.  Prehabilitation for surgical patients: a systematic review protocol. 2013.
This is protocol for a systematic review, but in the background information, it references several papers on presurgical interventions specifically concerning the outcome of pain.

Stern C.  Knowledge retention from preoperative patient information.  2005 (updated 2010).
This systematic review references several studies investigating usefulness of preoperative education on outcomes such as pain.

From PubMed:
(“Preoperative care”[mesh] OR “preoperative period”[mesh]) AND pain AND (psychology OR anxiety OR fear) AND adults AND patient education

This search may include references cited in the Joanna Briggs reviews.  It also includes a systematic review on outcomes of preoperative patient education in surgical setting:
Ronco M, et al.  Patient education outcomes in surgery: a systematic review from 2004 to 2010.  Int J Evid Based Healthc. 2012 Dec;10(4):309-23.