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Official Journal of the Italian Society of Orthopaedics and Traumatology

Table 6 Temporal pattern of functional outcome scales in patients aged ≥ 68 years with an FB implant

From: Temporal patterns of commonly used clinical outcome scales during a 5-year period after total knee arthroplasty

Score

Preop.

p-Value

PO 6 months

p-Value

PO 1 year

p-Value

PO 2 years

p-Value

PO 5 years

ROM

122.6 (2.6)

0.001

133.0 (1.3)

0.313

134.0 (1.3)

0.022

132.0 (1.3)

< 0.001

127.5 (1.8)

AKS

 Knee score (100)

43.6 (1.2)

< 0.001

94.7 (0.9)

0.708

94.3 (0.8)

0.010

96.7 (0.6)

0.082

94.9 (0.8)

 Function score (100)

59.2 (1.7)

< 0.001

88.7 (1.7)

0.173

91.6 (2.1)

0.517

93.0 (1.6)

0.367

95.3 (1.7)

WOMAC

 Pain (20)

11.2 (0.5)

< 0.001

2.9 (0.5)

0.420

3.3 (0.5)

0.015

2.0 (0.5)

0.177

3.4 (0.8)

 Stiffness (8)

4.8 (0.3)

< 0.001

2.4 (0.2)

0.014

1.6 (0.2)

0.842

1.6 (0.2)

0.484

1.9 (0.4)

 Function (68)

40.6 (1.8)

< 0.001

19.9 (1.6)

0.968

19.9 (1.7)

0.013

16.2 (1.5)

0.088

21.3 (2.9)

SF-36

 PCS

27.5 (0.7)

< 0.001

39.2 (1.2)

0.043

41.8 (1.1)

0.027

45.1 (1.4)

0.001

36.5 (2.2)

 MCS

45.5 (1.9)

0.652

46.5 (1.9)

0.855

46.9 (1.9)

0.874

47.1 (2.0)

0.171

43.2 (2.6)

  1. FB fixed bearing, Preop. preoperative, PO postoperative, ROM range of movement, AKS American Knee Society score, WOMAC Western Ontario and McMaster Universities Arthritis Index score, SF-36 36-Item Short Form Health Survey, PCS physical component summary, MCS mental component summary
  2. Italics indicates significant p-values