• Zena E H Moore and Seamus Cowman.
• Faculty of Nursing and Midwifery, Royal College of Surgeons in Ireland, Dublin, Ireland. zmoore@rcsi.ie.
• Cochrane Db Syst Rev. 2012 Sep 12 (9): CD006898.

BackgroundPressure, from lying or sitting on a particular part of the body results in reduced oxygen and nutrient supply, impaired drainage of waste products and damage to cells. If a patient with an existing pressure ulcer continues to lie or bear weight on the affected area, the tissues become depleted of blood flow and there is no oxygen or nutrient supply to the wound, and no removal of waste products from the wound, all of which are necessary for healing. Patients who cannot reposition themselves require assistance. International best practice advocates the use of repositioning as an integral component of a pressure ulcer management strategy. This review has been conducted to clarify the role of repositioning in the management of patients with pressure ulcers.ObjectivesTo assess the effects of repositioning patients on the healing rates of pressure ulcers.Search MethodsFor this second update we searched the Cochrane Wounds Group Specialised Register (searched 23 May 2012); The Cochrane Central Register of Controlled Trials (CENTRAL) (The Cochrane Library 2012, Issue 5); Ovid MEDLINE (2010 to May Week 2 2012); Ovid MEDLINE (In-Process & Other Non-Indexed Citations May 22, 2012); Ovid EMBASE (2010 to 2012 Week 20); and EBSCO CINAHL (2010 to 16 May 2012).Selection CriteriaWe considered randomised controlled trials (RCTs) comparing repositioning with no repositioning, or RCTs comparing different repositioning techniques, or RCTs comparing different repositioning frequencies for the review. Controlled clinical trials (CCTs) were only to be considered in the absence of RCTs.Data Collection And AnalysisTwo authors independently assessed titles and, where available, abstracts of the studies identified by the search strategy for their eligibility. We obtained full versions of potentially relevant studies and two authors independently screened these against the inclusion criteria.Main ResultsWe identified no studies that met the inclusion criteria.Authors' ConclusionsDespite the widespread use of repositioning as a component of the management plan for individuals with existing pressure ulcers, no randomised trials exist that assess the effects of repositioning patients on the healing rates of pressure ulcers. Therefore, we cannot conclude whether repositioning patients improves the healing rates of pressure ulcers. The effect of repositioning on pressure ulcer healing needs to be evaluated.

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