Comparison Of Closed Suction Drainage And Non-suction Drainage Treatment After Total Knee Arthroplasty

Objective:To measure and analysis the efficacy of closed suction drainage andnon-suction drainage after total knee arthroplasty. Furthermore, todiscuss a proper choice of drainage after total knee arthroplasty.Methods:20patients and26knees were retrospectively reviewed from June2012to June2013whose diagnosis was knee osteoarthritis. Six patientsreceived a bilateral total knee arthroplasty at a time. All patients whomet the inclusion criteria were divided into two groups in terms ofdrainage methods: closed suction drainage group and non-suctiondrainage group. Closed suction drainage group (Group A):14cases intotal,10female cases,4male cases, aged53to77years old, average of67.34±4.75years old. Non-suction drainage group (Group B):12casesin total,8female cases,4male cases, aged51to78years old, average of63.20±7.09years old. Efficacy comparison and statistical analysis weremade between these two groups. First of all, each cases were evaluatedand calculated its KSS Score preoperatively,3month and12monthpostoperatively. Secondly, the cross-section diameter of three centimeterlevel above patella were measured preoperatively,2days and7dayspostoperatively. At last, drainage volume were acquired48hours after total knee arthroplasty.Results:Average drainage volume of group A was517ml, with a range from265to1050ml, on the other hand, Group B collected453ml of eachcase, range from300to960ml. KSS knee score of group A from3month to12month postoperatively were65.55±8.34、88.60±5.41, andKSS clinic score were63.34±6.75、81.45±4.86. On the other hand, KSSknee score of group B from3month to12month postoperatively were64.66±8.15、87.95±6.17, and KSS clinic score were662.61±7.63、81.23±4.52. Swell ratio of closed suction drainage from2days and7days after TKA were1.053±0.014,1.038±0.018. Non-suction swellratio were1.069±0.019,1.039±0.013.Conclusions:Record showed that there is no statistical evidence prove non-suction group is superior to closed suction group. Some othersupplement choice like improved surgery technique or tranexamic acidwere encouraged for their function of relieve hemorrhage when thenon-suction technique was applied,...