title: Effect of Comprehensive Behavioral and Exercise Intervention on Physical Function and Activity Participation After Total Knee Replacement: A Pilot Randomized Study.
abstract: To test the feasibility of a comprehensive behavioral intervention (CBI) program that combines intense exercises with an education program, to be implemented at a later stage (3 months) following total knee replacement (TKR), and to get a first impression of the effects of the CBI as compared to a standard of care exercise (SCE) program on the outcomes of physical function and physical activity.
  
  
  
  A total of 44 subjects participated in a 3-month program of either CBI or SCE, followed by 3 months of a home exercise program. Outcomes of physical function and physical activity were measured at baseline and at 6-month followup. Analysis of variance was used to compare statistical differences between groups, whereas responder analyses were used for clinically important differences.
  
  
  
  The CBI was found to be safe and well tolerated. As compared to the SCE group, the CBI group had less pain (P = 0.035) and better physical function based on the Short Form 36 health survey (P = 0.017) and the single-leg stance test (P = 0.037). The other outcome measures did not demonstrate statistically significant differences between the 2 groups. Results from the responder analysis demonstrated that the CBI group had a 36% higher rate of responders in physical function as compared to the SCE group. Also, the CBI group had 23% more responders in the combined domains of physical function and physical activity.
  
  
  
  The CBI program is feasible and improves physical function and physical activity in patients several months after TKR. Larger pragmatic randomized trials are needed to confirm the results of this study.
authors.affiliation: University of Pittsburgh, Pittsburgh, Pennsylvania.
authors.forename: Sara R
authors.initials: SR
authors.lastname: Piva
authors.affiliation: University of Pittsburgh, Pittsburgh, Pennsylvania.
authors.forename: Gustavo J
authors.initials: GJ
authors.lastname: Almeida
authors.affiliation: University of Pittsburgh, Pittsburgh, Pennsylvania.
authors.forename: Alexandra B
authors.initials: AB
authors.lastname: Gil
authors.affiliation: University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania.
authors.forename: Anthony M
authors.initials: AM
authors.lastname: DiGioia
authors.affiliation: University of Pittsburgh, Pittsburgh, Pennsylvania.
authors.forename: Diane L
authors.initials: DL
authors.lastname: Helsel
authors.affiliation: University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania.
authors.forename: Gwendolyn A
authors.initials: GA
authors.lastname: Sowa
mesh_terms: D000368:Aged; D019645:Arthroplasty, Replacement, Knee / Q000009:adverse effects; D001521:Behavior Therapy / Q000379:methods*; D001696:Biomechanical Phenomena; D005081:Exercise Therapy / Q000379:methods*; D005240:Feasibility Studies; D005260:Female; D015438:Health Behavior; D007722:Health Knowledge, Attitudes, Practice; D006304:Health Status; D006801:Humans; D007719:Knee Joint / Q000503:physiopathology / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D010149:Postoperative Pain / Q000209:etiology / Q000517:prevention & control; D010353:Patient Education as Topic; D010414:Pennsylvania; D010865:Pilot Projects; D020127:Recovery of Function; D016037:Single-Blind Method; D013997:Time Factors; D016896:Treatment Outcome