The Journal of Bone and Joint Surgery (American). 2007;89:270-275.
doi:10.2106/JBJS.F.00492
© 2007 The Journal of Bone and Joint Surgery, Inc.
Intraoperative Red Blood-Cell Salvage in Revision Hip Surgery
A Case-Matched Study
J.P. Bridgens, MRCS1,
C.R. Evans, FRCS(Tr&Orth)2,
P.M.S. Dobson, FRCA1 and
A.J. Hamer, MD, FRCS(Orth)1
1 Department of Trauma and Orthopaedics, Northern General Hospital, Herries
Road, Sheffield S5 7AU, United Kingdom. E-mail address for J.P. Bridgens:
jpbridgens{at}doctors.org.uk
2 Department of Trauma and Orthopaedics, Robert Jones and Agnes Hunt Orthopaedic
Hospital, Oswestry, Shropshire SY10 7AG, United Kingdom
Investigation performed at the Lower Limb Arthroplasty Unit, Northern
General Hospital, Sheffield, United Kingdom
Disclosure: The authors did not receive any outside funding or
grants in support of their research for or preparation of this work. Neither
they nor a member of their immediate families received payments or other
benefits or a commitment or agreement to provide such benefits from a
commercial entity. No commercial entity paid or directed, or agreed to pay or
direct, any benefits to any research fund, foundation, division, center,
clinical practice, or other charitable or nonprofit organization with which
the authors, or a member of their immediate families, are affiliated or
associated.
A commentary is available with the electronic versions of this article,
on our web site
(www.jbjs.org)
and on our quarterly CD-ROM (call our subscription department, at
781-449-9780, to order the CD-ROM).
Background: Revision hip arthroplasty is commonly associated with
substantial blood loss and the subsequent need for transfusion. This leads to
an increased risk of blood-borne infection and hemolytic reactions. The
purpose of this study was to demonstrate whether the use of intraoperative red
blood-cell salvage in revision hip arthroplasty reduces the overall rate of
allogeneic transfusion.
Methods: Forty-seven patients who had undergone revision hip
arthroplasty with the use of intraoperative cell salvage were identified. A
computer database was used to individually match these patients, for age, sex,
and eleven operative variables, to control patients who had undergone revision
hip arthroplasty in the same unit without intraoperative cell salvage. Data
gathered included the total allogeneic transfusion requirement for each
patient, preoperative and postoperative hemoglobin levels, and operative
time.
Results: The total allogeneic transfusion requirement was
significantly lower in the group that had intraoperative cell salvage than in
the control group (median, 2 compared with 6 U of packed red blood cells, p =
0.0006), with a median reduction in allogeneic transfusion of 4 U. There was
no significant difference in preoperative or postoperative hemoglobin levels
between the groups.
Conclusions: The use of intraoperative cell salvage significantly
lowered the allogeneic transfusion requirement, which can lead to substantial
cost savings. To our knowledge, this is the first study in which the use of
intraoperative red blood-cell salvage in revision hip arthroplasty was
evaluated by matching patients on the basis of age, sex, and operative
variables.
Level of Evidence: Therapeutic Level III. See
Instructions to Authors for a complete description of levels of evidence.

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