title: C-reactive protein levels after 4 types of arthroplasty.
abstract: OBJECTIVE
  Postoperative C-reactive protein (CRP) levels in serum appear to reflect surgical trauma. We examined CRP levels after 4 types of arthroplasty.
  
  
  METHODS
  We investigated 102 patients who had total knee arthroplasty (TKA), computer navigation-assisted total knee arthroplasty (NAV-TKA), hip resurfacing arthroplasty (metal on metal, MMSA) and total hip arthroplasty (THA), respectively. CRP levels were estimated before surgery and postoperatively at 2 and 7 days.
  
  
  RESULTS
  Postoperatively, the peak CRP levels were highest on the second day after surgery in each of the groups. The peak CPR levels after hip resurfacing were lower than those after conventional primary THA. The peak CRP levels after computer navigation-assisted TKA were lower than those after conventional primary TKA.
  
  
  CONCLUSIONS
  The extent of bone and bone marrow injury rather than the region of surgery or the amount of soft tissue damage appears to determine the extent of the postoperative CRP response.
authors: Division of Adult Reconstruction, Department of Orthopedic Surgery, Shanghai Sixth People's Hospital, Shanghai Jiaotong University, Shanghai.
authors: Hao
authors: H
authors: Shen
authors: Nanxin
authors: N
authors: Zhang
authors: Xianlong
authors: X
authors: Zhang
authors: Weiping
authors: W
authors: Ji
mesh_terms: D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects / Q000379:methods; D019645:Arthroplasty, Replacement, Knee / Q000009:adverse effects / Q000379:methods; D002097:C-Reactive Protein / Q000032:analysis*; D006622:Hip Prosthesis / Q000009:adverse effects; D006801:Humans; D007720:Knee Prosthesis / Q000009:adverse effects; D015207:Osteoarthritis, Hip / Q000601:surgery; D020370:Osteoarthritis, Knee / Q000601:surgery; D011183:Postoperative Complications / Q000097:blood; D011184:Postoperative Period; D011446:Prospective Studies
chemical_list: D002097:C-Reactive Protein