Table 1 Changes on MRI after ESWT compared to no ESWT

Gao et al. [1]

After 6 months:

Reduction in 35%

Complete regression in 65%

After 12 months:

Complete regression in 100%

After 6 months:

Reduction in 40%

Complete regression in 25%

After 12 months:

Complete regression in 90%

Significant superiority of ESWT after 6 months (p = 0.018)

Schöberl et al. [17]

After 3 months:

Grading 1.5

After 3 months:

Grading 1.5

n.s.

Kang et al. [4]

After 3 months:

Reduction in 90.2% of patients

After 6 months:

Reduction in 95.1% of patients

After 12 months:

Reduction in 100% of patients

After 3 months:

Reduction in 61.4% of patients

After 6 months:

Reduction in 79.5% of patients

After 12 months:

Reduction in 97.7% of patients

After 3 months:

Significant superiority of ESWT (p < 0.001)

After 6 months:

Significant superiority of ESWT (p = 0.006)

After 12 months:

n.s.

Sansone et al. [6]

After 6 months:

88% reduction

After 6 months:

41% reduction

Significant superiority of ESWT after 6 months (p < 0.001)

Vitali et al. [3]

After 4 months:

77% reduction

After 4 months:

40% reduction

Significant superiority of ESWT after 6 months (p < 0.00001)