Hidden blood loss following hip and knee arthroplasty

British Editorial Society of Bone & Joint Surgery - Tập 86-B Số 4 - Trang 561-565 - 2004
Khosrow Sehat1,2, Robert L. Evans3,4, John H. Newman3,5
1Department of Orthopaedics, Derbyshire Royal Infirmary, London Road, Derby DE1 2QY, UK.
2Specialist Registrar in Orthopaedic Surgery
3Avon Orthopaedics Centre, Southmead Hospital, Westbury-on-Trym, Bristol BS10 5NB, UK.
4Research Audit Sister
5Consultant Orthopaedic Surgeon.

Tóm tắt

Following total hip arthroplasty (THA) and total knee arthroplasty (TKR) only the ‘visible’ measured blood loss is usually known. This underestimates the ‘true’ total loss, as some loss is ‘hidden’. Correct management of blood loss should take hidden loss into account. We studied 101 THAs and 101 TKAs (with re-infusion of drained blood). Following THA, the mean total loss was 1510 ml and the hidden loss 471 ml (26%). Following TKA, the mean total loss was 1498 ml. The hidden loss was 765 ml (49%). Obesity made no difference with either operation. THA involves a small hidden loss, the total loss being 1.3 times that measured. However, following TKA, there may be substantial hidden blood loss due to bleeding into the tissues and residual blood in the joint. The true total loss can be determined by doubling the measured loss.

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British Editorial Society of Bone & Joint Surgery

Tập 86-B Số 4

561-565

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