Table 2 PFP score (mean ± SD) at different study time points of 101 participants

Total sample (Hip and knee patients)

Total (n = 101)

Pre-frail (n = 50)

Frail (n = 51)

Frailty score pre-op (t0)

2.49 ± 1.05

1.56 ± 0.50

3.39 ± 1.45

Frailty score d 7 post-op (t1)

2.12 ± 1.43

1.90 ± 1.40

2.33 ± 1.44

Frailty score 4–6 wk follow-up (t2)

1.39 ± 1.39

0.88 ± 1.17

1.78 ± 1.45

Frailty score 12 wk follow-up (t3)

0.91 ± 1.17

0.53 ± 0.73

1.27 ± 1.14

Hip patients

Total (n = 65)

Pre-frail (n = 26)

Frail (n = 39)

Frailty score pre-op (t0)

2.63 ± 1.02

1.54 ± 0.51

3.36 ± 0.49

Frailty score d 7 post-op (t1)

2.15 ± 1.46

2.11 ± 1.56

2.18 ± 1.41

Frailty score 4–6 wk follow-up (t2)

1.44 ± 1.44

1.08 ± 1.44

1.71 ± 1.39

Frailty score 12 wk follow-up (t3)

0.85 ± 1.09

0.50 ± 0.86

1.08 ± 1.18

Knee patients

Total (n = 36)

Pre-frail (n = 24)

Frail (n = 12)

Frailty score pre-op (t0)

2.22 ± 1.05

1.58 ± 0.50

3.50 ± 0.52

Frailty score d 7 post-op (t1)

2.06 ± 1.39

1.67 ± 1.20

2.83 ± 1.47

Frailty score 4–6 wk follow-up (t2)

1.11 ± 1.28

0.65 ± 0.71

2.00 ± 1.65

Frailty score 12 wk follow-up (t3)

1.03 ± 1.32

0.57 ± 0.73

1.92 ± 1.73