title: Mini-incision total hip arthroplasty: a quantitative assessment of laboratory data and clinical outcomes.
abstract: In this study, we used laboratory data and clinical outcomes to evaluate the degree of approach-related trauma in mini-incision arthroplasty. In 94 patients (8 male and 86 female), a total of 100 osteoarthritic joints were replaced using total hip arthroplasty (THA). The level of serum C-reactive protein (CRP) and the erythrocyte sedimentation rate (ESR) were measured 1 week postoperatively in both the standard group and a mini-incision group. The serum CRP level (mean +/- standard deviation) was 3.3 +/- 2.6 mg/dl in the standard incision group compared to 1.8 +/- 1.2 in the mini-incision group. The ESR level was 66 +/- 22 mm/h in the standard incision group and 52 +/- 20 mm/h in the mini-incision group. The ratio of the level of creatine phosphokinase (CPK) measured postoperatively/preoperatively was 4.7 on the first postoperative day in the standard incision group and 3.6 in the mini-incision group. On the basis of the CRP and ESR levels, the mini-incision THA was considered to be less invasive. However, there was no significant difference in the day 1 CPK ratios between the two groups, suggesting that the degree of muscle trauma was similar.
authors.affiliation: Department of Orthopaedic Surgery, Toride Kyodo General Hospital, 2-1-1 Hongo, Toride 302-0022, Japan.
authors.forename: Koji
authors.initials: K
authors.lastname: Suzuki
authors.forename: Sadaomi
authors.initials: S
authors.lastname: Kawachi
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Sakai
authors.forename: Hideki
authors.initials: H
authors.lastname: Nanke
authors.forename: Sadao
authors.initials: S
authors.lastname: Morita
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip / Q000379:methods*; D001799:Blood Sedimentation; D002097:C-Reactive Protein / Q000378:metabolism; D003402:Creatine Kinase / Q000097:blood; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007902:Length of Stay; D008297:Male; D008875:Middle Aged; D019060:Minimally Invasive Surgical Procedures; D015207:Osteoarthritis, Hip / Q000097:blood / Q000534:rehabilitation / Q000601:surgery*; D012189:Retrospective Studies; D016896:Treatment Outcome
chemical_list: D002097:C-Reactive Protein; D003402:Creatine Kinase