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Table 2 Preoperative radiologic and clinical assessment

From: The effect of patellar facet angle on patellofemoral alignment and arthritis progression in posterior-stabilized total knee arthroplasty without patellar resurfacing

 

Group A

Group B

p value

Radiologic

 KL grade 3/4 (n)

20/52

10/22

0.815

 HKA angle (°)

172.0 ± 5.6

171.4 ± 5.6

0.585

 Insall-Salvati ratio

1.1 ± 0.2

1.1 ± 0.2

0.756

 Patellar tilt angle (°)

9.8 ± 5.5

14.6 ± 4.1

<  0.001

 Patellar displacement (mm)a

−1.0 ± 3.8

− 0.5 ± 3.3

0.431

Clinical

 KSKS

45.8 ± 12.7

46.9 ± 11.4

0.709

 KSFS

36.3 ± 11.8

37.8 ± 10.9

0.547

 Feller score

15.0 ± 5.7

14.3 ± 5.6

0.577

 Kujala score

51.0 ± 17.7

50.6 ± 16.3

0.930

 ROM (°)

118.2 ± 15.4

118.9 ± 15.0

0.858

  1. HKA hip-knee-ankle, KL Kellgren-Lawrence, KSFS Knee Society function score, KSKS Knee Society knee score, ROM range of motion
  2. a A negative value means medial displacement and a positive value means lateral displacement
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Knee Surgery & Related Research

ISSN: 2234-2451