title: Comparison of therapeutic effects between drainage blood reinfusion and temporary clamping drainage after total knee arthroplasty in patients with rheumatoid arthritis.
abstract: OBJECTIVE
  To compare the therapeutic effects between drainage blood reinfusion and temporary clamping drainage after total knee arthroplasty in patients with rheumatoid arthritis to provide a basis for clinical practice.
  
  
  METHODS
  Data from 83 patients with rheumatoid arthritis undergoing total knee arthroplasty were retrospectively analyzed. The 83 patients were divided into a drainage blood reinfusion group (DR group, n = 45) and a temporary clamping drainage group (CD group, n = 38). In the DR group, postoperative drainage blood was used for autotransfusion. In the CD group, closed drainage was adopted, and the drainage tube was clamped for 2 h postoperatively followed by patency. The postoperative drainage amount, hemoglobin level, rate and average volume of allogeneic blood transfusion, swelling and ecchymosis of the affected knee joint, time to straight-leg raising and range of active knee flexion were compared between the two groups.
  
  
  RESULTS
  The total drainage volume was higher in the DR group than in the CD group (P = 0.000). The average volume of postoperative allogeneic blood transfusion (P = 0.000) and the decrease in the hemoglobin level 24 h after total knee arthroplasty (P = 0.012) were lower in the DR group than in the CD group. Swelling and ecchymosis of the affected knee joint, time to straight-leg raising and the range of active knee flexion were improved in the DR group compared with the CD group (all P<0.05).
  
  
  CONCLUSIONS
  Compared with temporary clamping drainage, drainage blood reinfusion after total knee arthroplasty can reduce the allogeneic blood transfusion volume and is conducive to early rehabilitation in patients with rheumatoid arthritis.
authors.affiliation: Department of Orthopedic Surgery, Shengjing Hospital, China Medical University, Shenyang, China.
authors.forename: Bin
authors.initials: B
authors.lastname: Li
authors.affiliation: Department of Orthopedic Surgery, Shanghai Sixth People's Hospital, Shanghai Jiaotong University, Shanghai, China.
authors.forename: Zhong-tang
authors.initials: ZT
authors.lastname: Liu
authors.affiliation: Department of Orthopedic Surgery, Shengjing Hospital, China Medical University, Shenyang, China.
authors.forename: Peng
authors.initials: P
authors.lastname: Shen
authors.affiliation: Department of Orthopedic Surgery, Shengjing Hospital, China Medical University, Shenyang, China.
authors.forename: Bing-zheng
authors.initials: BZ
authors.lastname: Zhou
authors.affiliation: Department of Orthopedic Surgery, Shengjing Hospital, China Medical University, Shenyang, China.
authors.forename: Lun-hao
authors.initials: LH
authors.lastname: Bai
mesh_terms: D000328:Adult; D000368:Aged; D001172:Arthritis, Rheumatoid / Q000534:rehabilitation / Q000601:surgery*; D019645:Arthroplasty, Replacement, Knee / Q000379:methods* / Q000534:rehabilitation; D016063:Blood Loss, Surgical / Q000517:prevention & control; D001804:Blood Transfusion, Autologous / Q000379:methods*; D003250:Constriction; D004322:Drainage / Q000379:methods*; D005260:Female; D006454:Hemoglobins / Q000032:analysis; D006801:Humans; D007719:Knee Joint / Q000503:physiopathology / Q000601:surgery; D008297:Male; D008875:Middle Aged; D011184:Postoperative Period; D015203:Reproducibility of Results; D012189:Retrospective Studies; D013997:Time Factors; D016896:Treatment Outcome
chemical_list: D006454:Hemoglobins