• M J Parker, R Griffiths, and B N Appadu.
• Orthopaedic Department, Peterborough District Hospital, Thorpe Road, Peterborough, Cambridgeshire, UK, PE3 6DA. mjparker@doctors.org.uk
• Cochrane Db Syst Rev. 2002 Jan 1 (1): CD001159.

BackgroundVarious nerve blocks using local anaesthetic agents have been used in order to reduce pain after hip fracture.ObjectivesTo determine the effects of nerve blocks (inserted either pre-operatively, operatively or post-operatively) as part of the treatment for a hip fracture.Search StrategyWe searched the Cochrane Musculoskeletal Injuries Group specialised register (October 2001), MEDLINE -OVID WEB (1996 to October 2001) and reference lists of relevant articles.Selection CriteriaRandomised and quasi-randomised trials involving the use of nerve blocks as part of the care of a hip fracture patient.Data Collection And AnalysisTwo reviewers independently assessed trial quality, by use of a nine item scale, and extracted data. Wherever appropriate, results of outcome measures were pooled.Main ResultsEight randomised or quasi-randomised trials involving 328 patients were included. Three trials related to insertion of a nerve block pre-operatively and the remaining five to peri-operative insertion. Nerve blocks resulted in a reduction of the quantity of parenteral or oral analgesia administered to control pain from the fracture/operation or during surgery and/or a reduction in reported pain levels. It was not possible to demonstrate if this reduction in analgesia use was associated with any other clinical benefit.Reviewer's ConclusionsBecause of the small number of patients included in this review and the differing type of nerve blocks and timing of insertion, it is not possible to determine if nerve blocks confer any significant benefit when compared with other analgesic methods as part of the treatment of a hip fracture. Further trials with larger numbers of patients and full reporting of clinical outcomes would be justified.

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