Factors affecting wound ooze in total knee replacement

Wound ooze is common following total knee arthroplasty (TKA) and persistent wound infection is a risk factor for infection, and increased length and cost of hospitalisation. We undertook a prospective study to assess the effect of tourniquet time, peri-articular local anaesthesia and surgical approa...

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Bibliographic Details
Published in:Annals of the Royal College of Surgeons of England 2011-01, Vol.93 (1), p.54-56
Main Authors: Butt, U, Ahmad, R, Aspros, D, Bannister, G C
Format: Article
Language:English
Subjects:
Adult
Aged
Aged, 80 and over
Anesthesia, Local - methods
Arthroplasty, Replacement, Knee
Body mass index
Female
Fibroblasts
Hospitals
Humans
Hypotheses
Infections
Joint surgery
Male
Middle Aged
Orthopaedic Surgery
Patients
Postoperative Complications - etiology
Postoperative Complications - prevention & control
Prospective Studies
Risk Factors
Surgeons
Surgical Wound Infection - etiology
Surgical Wound Infection - prevention & control
Tourniquets
Treatment Outcome
Wound Closure Techniques
Wound Healing
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Summary:Wound ooze is common following total knee arthroplasty (TKA) and persistent wound infection is a risk factor for infection, and increased length and cost of hospitalisation. We undertook a prospective study to assess the effect of tourniquet time, peri-articular local anaesthesia and surgical approach on wound oozing after TKA. The medial parapatellar approach was used in 59 patients (77%) and subvastus in 18 patients (23%). Peri-articular local anaesthesia (0.25% Bupivacaine with 1:1,000,000 adrenalin) was used in 34 patients (44%). The mean tourniquet time was 83 min (range, 38-125 min). We found a significant association between cessation of oozing and peri-articular local anaesthesia (P = 0.003), length of the tourniquet time (P = 0.03) and the subvastus approach (P = 0.01). Peri-articular local anaesthesia, the subvastus approach and shorter tourniquet time were all associated with less wound oozing after total knee arthroplasty.
ISSN:0035-8843
1478-7083
DOI:10.1308/003588410X12771863937124