Table 1

Demographic and Preoperative Functional Scores by Site of Replacement

Patient Characteristics And Baseline, Preoperative Function
TKA Mean, (SD), N
THA Mean (SD) N
T-Test Results p-value

Age (years)
66.77, (8.23), 83
60.25, (11.19), 69
p < 0.001
BMI kg/m2
31.42, (4.69), 83
28.60, (4.56), 68
p < 0.001
TUG score (seconds)
10.15, (3.66), 83
10.14, (3.71), 69
p = 0.987
6 MWT distance (meters)
403.07, (120.10), 81
422.90, (115.65), 67
p = 0.311
Stair Test (seconds)
18.69, (8.37), 82
16.41, (11.42), 69
p = 0.160
WOMAC PF score
32.47, (11.89), 83
33.32, (10.60), 69
p = 0.646
LEFS score
30.51, (12.44), 83
29.45, (12.73), 69
p = 0.607

Abbreviations: TKA = Total Knee Arthroplasty

THA = Total Hip Arthroplasty

N = Number

SD = Standard Deviation

BMI = Body Mass Index

TUG = Timed up and go test

6 MWT = Six Minute Walk Test

PF = Physical Function

LEFS = Lower Extremity Function Scale

Kennedy et al. BMC Musculoskeletal Disorders 2006 7:100   doi:10.1186/1471-2474-7-100