Table 3

Power Doppler ultrasonography (PDUS) analysis of patients with spondyloarthritis (SpA) and controls by heel Please note that table 3 is not cited in the text.

SpA heels without pain (N=57)SpA heels with history of pain (N=18)SpA heels with pain (N=19)Controls (N=32)
N (%)N (%)N (%)N (%)
Achilles tendon
 Tendon thickening >5.29 mm4 (7.02)4 (22.22)6 (31.58)3 (9.38)
 Insertion thickening, mean (SD)4.11 (0.55)4.49 (1.19)4.34 (1.24)4.44 (0.59)
 Insertion/tendon ratio, mean (SD)0.94 (0.13)0.96 (0.13)0.89 (0.21)1.01 (0.16)
 Structure modifications3 (5.26)2 (11.11)2 (10.53)3 (9.38)
 Calcification3 (5.260 (0.00)0 (0.00)1 (3.13)
 Bone erosion2 (3.51)1 (5.56)3 (15.79)0 (0.00)
 Enthesophyte8 (14.04)2 (11.11)2 (10.53)10 (31.25)
Hypervascularisation Doppler
 Tendon0 (0.00)2 (11.11)2 (10.53)0 (0.00)
 Bone-enthesis junction1 (1.750 (0.00)1 (5.26)2 (6.25)
 Cortical bone0 (0.00)0 (0.00)1 (5.26)0 (0.00)
Preachillean bursitis
 Bursitis0 (0.00)2 (11.11)1 (5.26)0 (0.00)
 Hypervascularisation Doppler0 (0.00)2 (11.11)1 (5.26)0 (0.00)
Plantar aponeurosis
 Aponeurosis thickening >4.4 mm0 (0.00)2 (11.11)2 (10.53)0 (0.00)
 Insertion thickening2.99 (0.79)3.37 (0.81)3.94 (1.38)3.45 (0.88)
 Insertion/tendon ratio1.18 (0.29)1.17 (0.321.36 (0.65)1.37 (0.47)
 Structure modifications2 (3.512 (11.11)6 (31.58)4 (12.50)
 Calcification0 (0.00)0 (0 .00)0 (0.00)1 (3.13)
 Bone erosion1 (1.75)1 (5.56)2 (10.53)1 (3.13)c
 Enthesophyte11 (19.30)3 (16.67)8 (42.11)12 (37.50)
Hypervascularisation Doppler
 Tendon0 (0.00)0 (0.00)0 (0.00)0 (0.00)
 Bone-enthesis junction0 (0.00)0 (0.00)0 (0.00)0 (0.00)
 Cortical bone0 (0.00)0 (0.00)0 (0.00)0 (0.00)
Doppler positivity1 (1.75)2 (11.11)2 (10.53)2 (6.25)
Any sign7 (12.28)6 (33.33)11 (57.89)9 (28.13)
  • Data shown are n (%) or mean (SD).

  • Data in italics indicate significant p value (p<0.005) by the non-parametric Wilcoxon test.