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Journal of Orthopaedics and Traumatology

Official Journal of the Italian Society of Orthopaedics and Traumatology

Table 1 Soong grade and PCL distance

From: Volar locking plates not touching the flexor pollicis longus tendon appear as prominences on radiographs: a cadaver study

 

Soong grade

PCL distance (mm)

Grade 0

Grade 1

Grade 2

Mean

Max.

Min.

Acu-Loc2

2

2

2

1.12 ± 1.07

2.32

− 0.55

HYBRIX

3

2

1

0.06 ± 1.02

1.51

− 1.50

MODE

4

1

1

− 0.26 ± 1.11

1.33

− 1.51

VALCP

5

1

0

− 0.53 ± 0.69

0.87

− 1.26

VariAx

4

2

0

− 0.47 ± 0.78

0.57

− 1.78

DVR

5

1

0

− 0.77 ± 0.88

0.71

− 2.01

Total

23

9

4

   
  1. The critical line is a line drawn parallel to the volar cortex of the radial shaft, touching the most volar tip. All plates indicating more than grade 1 prominence
  2. PCL distance plate-to-critical line distance, Mean mean value, Max. maximum value, Min. minimum value, ± standard deviation
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