To run the search, copy/paste this into PubMed: 

(((“patient discharge” OR “patient discharge”[MeSH] and (decision making OR “Decision Support Techniques”[Mesh])))) AND (“Outcome and Process Assessment (Health Care)”[Mesh] OR length of stay)

Selected articles include:

Coudeyre, E, et al. “Transcultural validation of the Risk Assessment and Predictor Tool (RAPT) to predict discharge outcomes after total hip replacement.” Annals of physical and rehabilitation medicine 57.3 (2014):169-84.

Hansen, Viktor J, et al. “Does the Risk Assessment and Prediction Tool predict discharge disposition after joint replacement?.” Clinical orthopaedics and related research 473.2 (2015):597-601.

Holland, Diane E, et al. “Developing and testing a discharge planning decision support tool for hospitalized pediatric patients.” Journal for specialists in pediatric nursing 19.2 (2014):149-61.

Recent publications support the use of the Hands-Free Technique, or Neutral Zone, for reducing surgical injuries, most of the evidence for this support comes from studies older than your 5-6 year window of interest.

For example DiGirolamo KM, Courtemanche DJ, Hill WD, Kennedy A, Skarsgard ED,’s “Use of safety scalpels and other safety practices to reduce sharps injury in the operating room: what is the evidence?” Can J Surg. 2013 Aug; 56(4):263-269. PMID 23883497 examines 5 articles reporting effects of hands-free technique. Four showed significant reduction in incidents, the fifth showed no change. However, the studies themselves were published in 1992, 2000, 2002, and 2009. Only the last meets your request for articles from the past 5-6 years.

• The 2009 study, Stringer et al.’s “Hands-free technique in the operating room: reduction of body fluid exposure and the value of a training video.” Public Health Rep. 2009 Ju-Aug;124 Suppl 1:169-79. PMID 19618819, found a 35% reduction in incidents (defined as percutaneous injury, glove tear, and contamination).

Similarly, Walijee JF, Malay S, and Chung KC. “Sharps Injuries: The Risks and Relevance to Plastic Surgeons” Plast Reconstr Surg. 2013 Apr;131(4): 784-91. PMID 23542251, claim an up to 60% reduction in incidents when using a neutral zone, but base this claim on the previously reported study done in 2002.

Another study, Jagger et al. “Increase in sharps injuries in surgical settings versus nonsurgical settings after passage of national needlestick legislation” J Am Coll Surg. 2010 Apr;210(4):496-502. PMID 20347743 shows data on the percentage of surgical incidents that occur during “passing/between steps” but does not comment on specific intervention reductions.

In short, with the one exception of Stringer et al.’s 2009 article studies on the efficacy of the Hands-Free Technique, or Neutral Zone, appear to be 10-15 years old. Such older studies include:
• Berguer R, Heller PJ. “Preventing sharps injuries in the operating room.” J Am Coll Surg. 2004 Sep;199(3):462-7. PMID 15325617 Review of available evidence, often cited as offers summary of 2000 and 2002 data.
• Stringer B, Infante-Rivard C, Hanley JA. “Effectiveness of the hands-free technique in reducing operating theatre injuries.” Occup Environ Med. 2002;59(10):703-707. Reports 59% reduction.
• Folin A, Nyberg B, Nordström G. “Reducing blood exposures during orthopedic surgical procedures.” AORN J. 2000 Mar; 71(3):573-6, 579, 581-2. Small sample size, reported significant reduction for “scrub people” not for “first assistants” or “surgeons.”

“Early implementation of continuous renal replacement therapy optimizes casualty evacuation for combat-related acute kidney injury.” The journal of trauma and acute care surgery 75.2 (2013):S210.

“Continuous renal replacement therapy (CRRT).” The Internet journal of anesthesiology 21.1 (2009)

“Metabolic and nutritional aspects of acute renal failure in critically ill patients requiring continuous renal replacement therapy.” Nutrition in clinical practice 20.2 (2005):176.

Brooks G Potassium additive algorithm for use in continuous renal replacement therapy. Nursing in Critical Care (NURS CRIT CARE), 2006 Nov-Dec; 11 (6): 273-80. (24 ref)

Zonies, David, et al. “Early implementation of continuous renal replacement therapy optimizes casualty evacuation for combat-related acute kidney injury.” The journal of trauma and acute care surgery 75.2 Suppl 2 (2013):S210-4.

Jones, Sarah L, and Mark A JDevonald. “How acute kidney injury is investigated and managed in UK intensive care units–a survey of current practice.” Nephrology, Dialysis, Transplantation 28.5 (2013):1186-90.

Lee, Chia-Ying, Huang-ChiehYeh, and Ching-YuangLin. “Treatment of critically ill children with kidney injury by sustained low-efficiency daily diafiltration.” Pediatric nephrology 27.12 (2012):2301-9.