title: Postoperative drainage of knee arthroplasty is not necessary: a randomized study of 90 patients.
abstract: We studied the management of postoperative drainage after total knee replacement (TKR). 90 primary total knee joint arthroplasties were prospectively randomized into 3 groups: a) no drain, b) an autotransfusion system, c) a standard disposable closed suction drainage system. We monitored hemoglobin and hematocrit values, drainage volume and transfusions (homologous and autologous), range of knee motion, knee swelling and hospital stay. Parameters were recorded preoperatively, days 0-8 and 4 months postoperatively. No significant differences were seen between the groups in any of the parameters measured. The results show no benefit from using postoperative drainage systems in knee arthroplasties. Savings of SEK 400 (USD 55) per patient would have resulted if drains had not been used at all.
authors.affiliation: Department of Orthopedics, Uppsala University Hospital, Sweden.
authors.forename: G
authors.initials: G
authors.lastname: Adalberth
authors.forename: S
authors.initials: S
authors.lastname: Byström
authors.forename: K
authors.initials: K
authors.lastname: Kolstad
authors.forename: H
authors.initials: H
authors.lastname: Mallmin
authors.forename: J
authors.initials: J
authors.lastname: Milbrink
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D019645:Arthroplasty, Replacement, Knee / Q000009:adverse effects; D001803:Blood Transfusion / Q000706:statistics & numerical data; D001804:Blood Transfusion, Autologous / Q000295:instrumentation; D017046:Cost Savings; D004209:Disposable Equipment; D004322:Drainage / Q000191:economics / Q000295:instrumentation / Q000379:methods*; D005260:Female; D006400:Hematocrit; D006454:Hemoglobins / Q000032:analysis; D006801:Humans; D007902:Length of Stay / Q000706:statistics & numerical data; D008297:Male; D008875:Middle Aged; D011182:Postoperative Care / Q000379:methods*; D011446:Prospective Studies; D016059:Range of Motion, Articular
chemical_list: D006454:Hemoglobins