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Table 7 Values of volume and thickness in harvested and unharvested patellar tendons – one acquisition, two examiners

From: Reliability and methodology of quantitative assessment of harvested and unharvested patellar tendons of ACL injured athletes using ultrasound tissue characterization

Inter-rater reliability of analysis - 1 acquisition/ 1 day/ 2 examiners/ 2 analysis per patellar tendon

23 Participants

Areas of interest

Harvested patellar tendons (n = 20)

Unharvested patellar tendons (n = 19)

Volume (cm3)

Thickness (cm)

Volume (cm3)

Thickness (cm)

Examiner 1 (C.S.P.)

 Patellar Apex

1.5 ± 0.3

NA

0.9 ± 0.2

NA

 Proximal tendon

1.4 ± 0.4

NA

0.9 ± 0.1

NA

 Mid Tendon

1.3 ± 0.3

0.7 ± 0.2

0.9 ± 0.1

0.4 ± 0.1

 Distal Tendon

1.3 ± 0.3

NA

0.8 ± 0.2

NA

Examiner 2 (R.C.G.S.)

 Patellar Apex

1.2 ± 0.3

NA

0.9 ± 0.2

NA

 Proximal tendon

1.3 ± 0.3

NA

0.9 ± 0.2

NA

 Mid Tendon

1.4 ± 0.3

0.7 ± 0.2

1.0 ± 0.3

0.4 ± 0.0

 Distal Tendon

1.4 ± 0.2

NA

0.9 ± 0.2

NA

ICC (95% CI)

0.59 (0.42, −0.71)

0.85 (0.66, 0.94)

0.30 (0.08, −0.49)

0.24 (− 0.20, 0.62)

SEM (ICC) % GrM

16.4

13.9

14.6

13.5

SEM (ICC)

0.2

0.1

0.1

0.1

  1. n = number of tendons assessed. Mean ± standard deviation
  2. ICC (95% CI) Intra-class coefficient of reliability (95% confidence interval), SEM % GrM Standard error of measurement as percentage of the grand mean, SEM Standard error of measurement