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Journal of Bone and Joint Surgery - British Volume, Vol 90-B, Issue 11, 1435-1440.
doi: 10.1302/0301-620X.90B11.20687  
Copyright © 2008 by British Editorial Society of Bone and Joint Surgery
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Pre-operative predictors of the length of hospital stay in total knee replacement

I. D. M. Smith, MRCS, Specialty Registrar1; R. Elton, PhD, Honorary Fellow2; J. A. Ballantyne, FRCS(Trauma & Orth), Consultant Orthopaedic Surgeon3; and I. J. Brenkel, FRCSEd, Consultant Orthopaedic Surgeon3

1 Department of Trauma and Orthopaedics, Glasgow Royal Infirmary, Gatehouse Building, 84 Castle Street, Glasgow, G4 0SF, UK.
2 Public Health Sciences Section, Division of Community Health Sciences, The University of Edinburgh Medical School, Teviot Place, Edinburgh EH8 9AG, UK.
3 Department of Orthopaedics Queen Margaret Hospital, Whitefield Road, Dunfermline KY12 0SU, UK.

Correspondence should be sent to Mr I. J. Brenkel; e-mail: ivan.brenkel{at}faht.scot.nhs.uk

In Scotland, the number of primary total knee replacements performed annually has been increasing steadily. The price of the implant is fixed but the length of hospital stay is variable.

We prospectively investigated all patients who underwent primary unilateral total knee replacement in the Scottish region of Fife, between December 1994 and February 2007 and assessed their recorded pre-operative details. The data were analysed using univariate and multiple linear regression statistical analysis.

Data on the length of stay were available from a total of 2106 unilateral total knee replacements. The median length of hospital stay was eight days. The significant pre-operative risk factors for an increased length of stay were the year of admission, details of the consultant looking after the patient, the stair score, the walking-aid score and age.

Awareness of the pre-operative factors which increase the length of hospital stay may provide the opportunity to influence them favourably and to reduce the time in hospital and the associated costs of unilateral total knee replacement.




eLetters:

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Pre-operative predictors of the length of hospital stay in total knee replacement
Marcus O. Head, et al.
J Bone Joint Surg Br Online, 5 Feb 2009 [Full text]
Author's reply:
Ivan J Brenkel
J Bone Joint Surg Br Online, 13 Feb 2009 [Full text]

(c) British Editorial Society of Bone and Joint Surgery All Rights Reserved
Registered charity no: 209299     Print ISSN: 0301-620X
Hip, Knee, Trauma, Upper limb, Foot & Ankle, Paediatrics, Oncology, Spine, Arthroplasty, General