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Table 3 Comparison of preoperative and postoperative knee extension and flexion angle by surgical method

From: Correlation of patient-reported numbness around surgical scars with patient-reported outcome measures and joint awareness after knee replacement: a cohort study

Type of surgery

TKA: 320 knees

UKA: 74 knees

p-value

Knee extension angle (°)

 Preoperative

8.7 ± 8.3

3.6 ± 4.6

< 0.0001

 Postoperative

0.7 ± 2.3

0.3 ± 1.5

0.32

 p-value

< 0.0001

< 0.0001

 

Knee flexion angle (°)

 Preoperative

123.5 ± 15.7

132.8 ± 11.0

< 0.0001

 Postoperative

132.8 ± 1.0

137.0 ± 8.0

< 0.0001

 p-value

< 0.0001

< 0.0001

 
  1. The knee extension angle is expressed as a negative value for hyperextension and a positive value for limitation of extension.
  2. Boldface means statistically significant.
  3. TKA Total knee arthroplasty, UKA Unicondylar knee arthroplasty