What is the evidence for nutritional supplementation in a hip and knee replacement ERAS protocol?

Presentation Preference: Oral or Poster Objectives: Carbohydrate loading (CL) is an accepted component of general surgery ERAS protocols. The role of nutritional supplementation within hip and knee replacement ERAS is unclear. This review examines the evidence for nutritional supplements accelerating achievement of discharge criteria. Methods: Table 1 details the literature search Results: PsycINFO, PsycARTICLES, ScienceDirect, MEDLINE, CINAHL, and Cochrane searched on 29/10/15. Peer reviewed, English, from 1990: [(MH "Arthroplasty, Replacement, Hip")OR(MH "Hip Prosthesis")OR(Hip*)N5(arthroplast* OR prosthes* OR replace*)OR THA OR THR OR(MH "Arthroplasty, Replacement, Knee")OR(MH "Knee Prosthesis")OR(Knee*)N5(arthroplast* OR prosthes* OR replace*)OR TKA OR TKR]AND[preoperative OR pre operative OR postoperative OR post operative]AND[Nutriti* OR (MH "Dietary Carbohydrates") OR carbohydrat* OR(MH "Diet+")OR protein OR amino acids OR “branched chain amino acid” OR glutamine OR omega-3 fatty acids OR docosahexaenoic acid OR DHA OR eicosapentenoic acid OR EPA OR iron OR vitamin C OR ascorbic acid OR vitamin D OR B vitamin* OR selenium OR zinc OR calcium]. 8 RCTs were identified